emma deposits $90 into a bank that pays 4% simple interest per year. calculate the value in dollars) of her deposit after 3 years? write the correct answer.
10.80

Answers

Answer 1

The value of Emma's deposit after 3 years, including simple interest, is $90 + $10.80 = $100.80.


Simple Interest = Principal x Rate x Time

In this case, the Principal is $90 (the initial deposit), the Rate is 4% (0.04 as a decimal), and the Time is 3 years.

Step 1: Calculate the simple interest.
Simple Interest = $90 x 0.04 x 3
Simple Interest = $10.80

Step 2: Add the simple interest to the initial deposit.
Total Value = Principal + Simple Interest
Total Value = $90 + $10.80
Total Value = $100.80

So, the value of Emma's deposit after 3 years is $100.80.

learn more about "simple interest":- https://brainly.com/question/20690803

#SPJ11


Related Questions

the ratio of the numbers of sides of two polygons is 1:2. if each interior angle of the first polygon is 120degree, then the measure of each interior angle of the second polygon is​

Answers

Answer:

  150°

Step-by-step explanation:

You want to know the measure of an interior angle of a regular polygon that has twice as many sides as one with an interior angle of 120°.

Exterior angle

The exterior angle of a regular polygon is the supplement of the interior angle. The polygon with an interior angle of 120° has an exterior angle of ...

  180° -120° = 60°

The sum of exterior angles is 360°, so there must be 360°/60° = 6 of them. In the polygon with twice as many sides, there will be twice as many exterior angles, so each will measure 360°/12 = 30°.

Interior angle

The corresponding interior angle is ...

  180° -30° = 150°

The measure of each interior angle of the second polygon is 150°.

<95141404393>

I will give brainliest to best answer
Please find the value of b for 1, 2, and 3.

The area of a rectangle is 14 square units. It has side lengths a and b. Given the following values for a, find b.
1. a = 2 1/3 (two and one third)
2. a = 4 1/5 (four and one fifth)
3. a = 7/6 (seven sixths)

Answers

Answer:

1. B= 6

2. B= 3.333333333

3. B= 12

Step-by-step explanation:

1. 14/ 2 1/3 (two and one third)=6

2. 14/ 4 1/5(four and one fifth)= 3.333333333

3. 14/ 7/6 (seven sixth)= 12

The roof will be covered with sheets of plywood that are 4 feet x 8 feet x 1/2
inch. Plywood is placed over the top chords of the roof trusses to form the
covering or "decking" of the roof.
How many sheets of plywood will be needed to form the decking? Include all
calculations and/or explanations necessary to support your answer.

Answers

Answer:

The length and width of the roof can be used to calculate the total square footage of the roof. For example, if the roof is 20 feet long and 10 feet wide, the total square footage would be 200 square feet.

Once the total square footage is known, the number of sheets of plywood needed can be calculated. Each sheet of plywood is 4 feet x 8 feet, or 32 square feet. Therefore, 200 square feet of roof would require (200/32 = 6.25) 6.25 sheets of plywood. In order to cover the entire roof, 7 sheets of plywood would need to be used.

Step-by-step explanation:

Aron charges an initial service fee of 10$ plus 15$ per hour , what is X?

Answers

Answer:

The linear function becomes:

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

Step-by-step explanation:

We know that the slope-intercept of a linear function is

\(y = mx+b\)

where m is the slope and b is the y-intercept

Note: Slope is also termed as the 'rate of change'.

Given that Aron charges an initial service fee of 10$.

Thus, the y-intercept = b = 10

As the rate of change = 15$ per hour

so the slope = m = 15

Therefore, the linear function becomes:

\(y = mx+b\)

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

For example, in one hour i.e. x = 1, the cost 'y' will be:

y = 15x + 10

y = 15(1) + 10

y = 25 + 10

y = $25

Therefore, in one hour (x=1), the cost will be: y = $25

95 % of the class is on santa's nice list if there are 20 students how many are naughty

Answers

Answer: 1 Student

Step-by-step explanation:

Hope this helps!

A (2,5 and B(-3,9)

1.The Midpoint of the straight​

Answers

Answer:

Step-by-step explanation:

To figure out the midpoint, you need to plug the coordinates into the midpoint formula.

M (x1 + x2 / 2, y1 + y2/2)

M [ 2 + (-3)/2,  5 + 9/2]

M ( -1/2, 7)

sin² x + cos²x = 1

Which Trigonometric Identity is given above?

- Pythagorean Identity

- Lagrange's Trigonometric Identity

- Angle Sum and Difference Identity

- Tangent Identity

Answers

The  Trigonometric Identity sin² x + cos²x = 1 is: A. Pythagorean Identity.

What is Pythagorean Identity?

The Pythagorean Identity which  tend to asserts that for every angle x, the sum of the squares of the sine and cosine of x is equal to one  is known as or called a  trigonometric identity.

The  Pythagorean identity can be expressed as:

sin² x + cos² x = 1

This identity is crucial to understanding trigonometry and tend to have several uses in numerous branches of science and engineering.

Therefore the correct option is A.

Learn more about Pythagorean Identity here:https://brainly.com/question/24287773

#SPJ1

What is the GCF Of 292 and 219

Answers

73 is the GCF or HCF of 292 and 219, hope thsi helps

The entire league division that the Hawks belong to has the same ratio of red heads to everyone else. What is the total number of red heads in that division if the total number of players is 126?

Answers

This question is incomplete

Complete Question

The little league team called the Hawks has 7 brunettes, 5 blonds, and 2 red heads.

The entire little league division that The Hawks belong to has the same ratio of redheads to everyone else.

What is the total number of redheads in that division if the total number of players is 126?

Answer:

18 red heads

Step-by-step explanation:

We are told:

The little league team called the Hawks has 7 brunettes, 5 blonds, and 2 red heads.

Hence, we have the ratio

7: 5: 2

Adding up the ratios together

7 + 5 + 2

= 14

The total number of players is 126

Hence, the total number of redheads in that division is

2/14 × 126

= 18 red heads.

The goal of this problem is to overestimate and underestimate the area under the graph of f(x)=−13+14x−x2 from x=1 to x=13 using an "upper sum" and "lower sum" of areas of 4 rectangles of equal width.
a) Overestimate using an upper sum:
b) Underestimate using a lower sum:

Answers

The area under the curve of the function from x = 1 to x = 13 is -36 square units for both overestimation and underestimation.

The height of the second rectangle is f(4), the height of the third rectangle is f(7), and the height of the fourth rectangle is f(10). Overestimate using an upper sum: The area under the curve of the function from x = 1 to x = 13 is to be overestimated using an upper sum. An upper sum is the sum of the areas of the rectangles where the height of each rectangle is the maximum value of the function in the interval of the rectangle. The upper sum is given by: `upper sum = f(1)Δx + f(4)Δx + f(7)Δx + f(10)Δx`. The height of the rectangle starting at x = 1 is f(1) = -13 + 14(1) - (1)² = -12. The height of the rectangle starting at x = 4 is f(4) = -13 + 14(4) - (4)² = 3. The height of the rectangle starting at x = 7 is f(7) = -13 + 14(7) - (7)² = -20. The height of the rectangle starting at x = 10 is f(10) = -13 + 14(10) - (10)² = 17. Thus, `upper sum = (-12)(3) + (3)(3) + (-20)(3) + (17)(3) = -36 + 9 - 60 + 51 = -36`. Therefore, the overestimated area under the curve of the function from x = 1 to x = 13 is -36 square units.

Underestimate using a lower sum: The area under the curve of the function from x = 1 to x = 13 is to be underestimated using a lower sum. The minimum value of the function in the interval of the rectangle starting at x = 7 is f(7) = -20. The minimum value of the function in the interval of the rectangle starting at x = 10 is f(10) = 17. Thus, `lower sum = (-12)(3) + (3)(3) + (-20)(3) + (17)(3) = -36 + 9 - 60 + 51 = -36`. Therefore, the underestimated area under the curve of the function from x = 1 to x = 13 is -36 square units.

To know more about function visit:-

https://brainly.com/question/30721594

#SPJ11

are the expressions -3^2 and (-3) ^2 equivalent? explain

Answers

The value of the expressions are not equal

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

p = -3²

q = ( -3 )²

On simplifying the equations , we get

The value of p = -9

The value of q = 9

So , the value of p and q are not equal

Hence , the equations are not equal

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ1

XXX X X -4 X X X 1414/ Reading Time (in hours) 2 6 How does the number of reading sessions longer than 1 hour compare to the number of sessions that are 1 hour or less?​

Answers

The solution is :  the number of sessions that can be sheduled for each student is 3.75.

The following can be gotten from the question:

Time taken for each session = 4/5 hours

Total time set aside by principal = 3 hours

The number of sessions that can be sheduled for each student will be:

= Total time set aside by principal / time taken for each session

= 3 hours / 4/5 hours

= 3 × 5/4

= 3.75

Hence, The solution is :  the number of sessions that can be sheduled for each student is 3.75.

To learn more on multiplication click:

brainly.com/question/5992872

#SPJ1

complete question:

At cultutral arts day each session lasts 4/5 hours. The principal has set aside 3 hours for the sessions. Determine the number of sessions that can be sheduled for each student

new one i need help with this one

new one i need help with this one

Answers

Answer:

10

Step-by-step explanation:

Correct me if I’m wrong it’s been a while but I think u add 3 + 3 + 2+ 2

Answer:

It is 10

Step-by-step explanation:

In order to do perimeter you need to add each corners value, in this case a to B is one side and A to D is another, in order to get from A to B you have to walk 3 units, so their is our first part, now for the second you need to walk from point a to point D which if you do it will be 4 units.

Now we have 2 numbers, 4 and 3, We still have the other side but it will be the same, so you will do 4+4 and 3+3, in this case it will be 8+6 so the answer should be 14. I might be wrong.

which expression would be easier to simplify if you use the associative property to change the grouping.​

which expression would be easier to simplify if you use the associative property to change the grouping.

Answers

Answer:

the answer is D (27 + 4.5 ) + 1.5

Hope that helps

Answer:

Amswer is A

Step-by-step explanation:

5. John caught 24 trout and bass while on a fishing
trip. The total weight of his catch was 126 pounds.
The average weight of trout was 2 pounds and the
average weight of bass was 8 pounds. How many
trout and how many bass did he catch?

Answers

Answer:

T=10 B=14

Step-by-step explanation:

t + b = 24

2.5t + 8b = 137

b = 24 - t

2.5t + 8(24 - t) = 137

2.5t +192 - 8t =137

5.5t = 55

t = 10

b = 24 - 10 = 14

b= 14

hope this helps :))

A meteorologist used the expression below to describe how the temperature changed.

Negative 5 + (negative 4)

Which statement could describe how the temperature changed?
The temperature was –5 degrees, then it increased 4 degrees.
The temperature was –5 degrees, then it decreased 4 degrees.
The temperature was 5 degrees, then it increased 4 degrees.
The temperature was 5 degrees, then it decreased 4 degrees.

Answers

the answer would be 96 because it says in the page 91 so divide it togwthernyoubwill get 96

Answer: the answer is C

Step-by-step explanation:

Which operators are commutative (choose all that apply)? average of pairs of real numbers: adab = (a+b)/2. | multiplication of real numbers subtraction of integers composition of bijective functions from the set {1,2,3} to itself.

Answers

Which operators are commutative?

The operators which are commutative (choose all that apply) are: Average of pairs of real numbersMultiplication of real numbers.

The commutative operator states that the order in which the numbers are computed does not affect the result. Thus, the operators which are commutative (choose all that apply) are the average of pairs of real numbers and the multiplication of real numbers. The commutative property applies to binary operations and is one of the fundamental properties of mathematics. It states that changing the order of the operands does not alter the result of the operation. The addition and multiplication of real numbers are commutative properties. It implies that if we add or multiply two numbers, the result will be the same whether we begin with the first or second number.

Thus, the operators which are commutative (choose all that apply) are: Average of pairs of real numbers and the Multiplication of real numbers.

Therefore, the subtraction of integers and composition of bijective functions from the set {1,2,3} to itself are not commutative operators.

Learn more about commutative operators: https://brainly.in/question/39088522

#SPJ11

two triangle are similar. rye length of one side of one triangle is 4 times that of the corresponding side of the other determine the ratio of the perimeter the ratio of the areas of the polygon​

Answers

The ratios for the similar triangles are given as follows:

The ratio of the perimeter is of 4.The ratio of the area is of 16.

What are similar triangles?

Similar triangles are triangles that share these two features listed as follows:

Congruent angle measures, as both triangles have the same angle measures.Proportional side lengths, which helps us find the missing side lengths.

The length of one side of one triangle is 4 times that of the corresponding side of the other, hence the constant of the proportional relationship for the side lengths is given as follows:

k = 4.

The perimeter is measured in units, just like the side lengths, while the area is measured in units squared, hence the ratios are given as follows:

The ratio of the perimeter is of 4.The ratio of the area is of 4² = 16.

More can be learned about similar triangles at brainly.com/question/14285697

#SPJ1

Simplify.
Rewrite the expression in the form 8n.
(8−8)(8³) =

Answers

The above expression in terms of 8n can be written as 8(0).

What is expression?

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles. A number, a variable, or a mix of numbers, variables, and operation symbols make up an expression.

We are given a an expression (8-8)(8³)

Now the first bracket after simplifying we get an answer is 0.

Hence the expression can be given in the form of 8(n) as 8(0)

Given below is a sample of expression. kindly refer the link

https://brainly.com/question/25968875

#SPJ1

can someone please answer this for me -11p + 11p

Answers

Answer:

ooouuhhggg

Step-by-step explanation:

iiiiijhhhjjjhhjjjnnnnnnjjj

Answer:

0

Step-by-step explanation:

-11p + 11p

=> 0

A plane leaves Mauritius at 23 15 on a Thursday and flies to Hong Kong. The flight is 10 hours long and the time in Hong Kong is 4 hours ahead of that in Mauritius.
At what time and on which day does the plane land in Hong Kong?

Answers

Answer:

12:15

Step-by-step explanation:

23:15

Add 10 hours

08:15

Add 4 more hours because it's ahead by 4

So 12:15

Solution :

The time at which they reaches Hong Kong :

23 : 15 + 10 : 00 (Tuesday)

09 : 15 AM (Wednesday)

And since Hong Kong is 4 hours ahead of Mauritius, the time at which reach at Hong Kong will show up as :

09 : 15 + 04 :00

13 : 15 PM (Wednesday)

The plane lands at 13 : 15 PM on Wednesday.

of the respondents, 457 replied that america is doing about the right amount. what is the 95 % confidence interval for the proportion of all american adults who feel that america is doing about the right amount to protect the environment.

Answers

The 95% confidence interval is 0.4046 < p < 0.4063.

Given,

The sample size is 1127.

The number that America is getting roughly correctly is k = 457.

In general, the sample fraction of the number that indicates America is doing approximately the proper amount is expressed mathematically as

p = k ÷ n

p = 457 ÷ 1127

p = 0.4055

According to the question, the confidence level is 95%, hence the degree of importance is,

\(\alpha\) = (100 - 95)%

\(\alpha\) = 5%

\(\alpha\) = 0.05

According to the normal distribution table, the critical value of is \(\alpha\) ÷ 2 is,

Z(\(\alpha\)/2) = 1.96

In general, the margin of error is expressed numerically as

E = Z × √(p(1 - p)) ÷ n

E = 1.96 × √(0.4055(1 - 0.4055)) ÷ 1127

E = (1.96 × √(0.4055(1 - 0.4055))) ÷ 1127

E = 0.000853

A 95% confidence interval is typically expressed mathematically as

p - E < p < p + E

0.4055 - 0.000853 < p < 0.4055 + 0.000853

0.4046 < p < 0.4063

Learn more about the probability at

https://brainly.com/question/24259382?referrer=searchResults

#SPJ4

The question is -

In 2015 as part of the General Social Survey, 1127 randomly selected American adults responded to this question: “Some countries are doing more to protect the environment than other countries. In general, do you think that America is doing more than enough, about the right amount, or too little?” Of the respondents, 457 replied that America is doing about the right amount. What is the 95 % confidence interval for the proportion of all American adults who feel that America is doing about the right amount to protect the environment?

Identify the polynomial divisor, dividend, and quotient represented by the synthetic division.

Divisor:
A. –3
B. 3
C. x – 3
D. x + 3

Dividend:
A. 2x3 + 11x2 + 18x + 9
B. -6x3 - 15x - 9
C. 2x2 + 5x + 3

Quotient:
A. 2x4 + 11x3 + 18x + 9
B. 2x3 + 5x2 + 3x
C. 2x2 + 5x + 3

Answers

Answer:

Divisor:D

Divedend: A

Quotient:C

Step-by-step explanation:

The divisor = (x+3), the dividend = (2x³+11x²+18x+9) and the quotient = (2x²+5x+3)

What is synthetic division?

Synthetic division is a method for manually performing Euclidean division of polynomials.

Given that polynomial divisor, dividend and quotient ;

The correct divisor, dividend and quotient are (x+3), (2x³+11x²+18x+9) and (2x²+5x+3) respectively

Hence, The divisor = (x+3), the dividend = (2x³+11x²+18x+9) and the quotient = (2x²+5x+3)

For more references on Synthetic division, click;

https://brainly.com/question/28824872

#SPJ2

the rabbit population in a certain area is 200%of last years population. There are 700 rabbits this year how many were there last year

Answers

Answer:

the answer is 350

Step-by-step explanation:

if it increased by 200% that means it doubled

so when x is doubled we get 700

so: 2x=700

       x=700/2

       x=350

Only answer if your are 100% sure.

Only answer if your are 100% sure.

Answers

Answer:

It is zero

Step-by-step explanation:

The attatched should help you understand discriminants:

Only answer if your are 100% sure.

Answer:C

Step-by-step explanation:

If the discriminant is negative you will have no real roots, if it is positive it will have 2 real roots, only with a discriminant of 0 will you get only one real root. Also, for undefined discriminant that is the same as a negative answer.

use the method of variation of parameters to solve the initial value problem x' = ax f(t), x(a) = xa using the following values. 4 -2 16t2 0 1 2t - 40 a= f(t) = x(0) = 2 - 1 4t t 1-2t x(t) =

Answers

The process involves finding the complementary solution x_c(t) by solving the homogeneous equation, determining the particular solution x_p(t) using the method of variation of parameters, and combining them to obtain the general solution x(t).

1. The method of variation of parameters can be used to solve the initial value problem x' = axf(t), x(a) = xa, where a and f(t) are given functions. In this case, we have the values a = 4 - 2t and f(t) = 16t^2. We need to find the solution x(t) using the initial condition x(0) = 2.

2. To solve the initial value problem using the method of variation of parameters, we first find the complementary solution x_c(t) by solving the homogeneous equation x' = ax.

3. For the given a = 4 - 2t, the homogeneous equation becomes x' = (4 - 2t)x. By separation of variables and integration, we find the complementary solution x_c(t) = Ce^(2t - t^2).

4. Next, we find the particular solution x_p(t) by assuming a particular solution of the form x_p(t) = u(t)e^(2t - t^2), where u(t) is a function to be determined.

5. Differentiating x_p(t) and substituting it into the original differential equation, we can solve for u'(t) and determine the form of u(t). After finding u(t), we substitute it back into x_p(t).

6. Finally, the general solution is given by x(t) = x_c(t) + x_p(t). By substituting the values and integrating, we can obtain the specific solution x(t) for the given initial condition.

Learn more about homogeneous equation here: brainly.com/question/12884496

#SPJ11

Given: \angle CAD \cong \angle CBD∠CAD≅∠CBD and \angle CAB \cong \angle CBA.∠CAB≅∠CBA. Prove: \overline{AD} \cong \overline{DB} AD ≅ DB .

Answers

Given the congruent angles ∠CAD ≅ ∠CBD and ∠CAB ≅ ∠CBA, we need to prove that the line segment AD is congruent to DB.

By the given information, we have two pairs of congruent angles in triangles CAD and CBD: ∠CAD ≅ ∠CBD and ∠CAB ≅ ∠CBA. This suggests that the two triangles are similar.

Since the angles are congruent, we can apply the Angle-Angle (AA) similarity criterion. According to this criterion, if two pairs of corresponding angles in two triangles are congruent, then the triangles are similar.

Now, since triangles CAD and CBD are similar, we can establish the following ratios of corresponding sides:

\(\frac{CA}{CB} = \frac{AD}{DB}\)

By the properties of similar triangles, the corresponding sides are proportional. Given that ∠CAB ≅ ∠CBA, we can also assume that CA = CB. Thus, we have:

\(\frac{CA}{CB} = \frac{AD}{DB} = \frac{CA}{CA} = 1\)

This implies that AD = DB, proving that the line segment AD is congruent to DB.

Learn more about congruent here:

https://brainly.com/question/30596171

#SPJ11

does anyone know this question ?? please help

does anyone know this question ?? please help

Answers

Answer:

Step-by-step explanation:

the 3rd

What is the mood i need help​

What is the mood i need help

Answers

Answer:

5.

Step-by-step explanation:

The mode is the number that occurs the most in a data set.

Here, the number 5 appears the most.

Answer:

The answer is 5

Step-by-step explanation:

The mode is the value that appears most frequently in a data set.

Hope this helps! Have a nice day!

When adding decimals, we must start on which side?

Answers

Answer:

you go from left to right

like this

2.34 + 5.43= 7.77

or do u mean this? (if u mean this then its right to left)

 2.34

+5.43

 7.77

Step-by-step explanation:

Other Questions
What is a novel emergent property of the mammalian bladder? What is the value of B for the following triangular prism? 5.6 cm 2 52.5 cm 2 5.25 cm 2 56 cm 2 Find the missing length I WILL GIVE BRAINLIEST In this excerpt, the sequence of events creates suspense bystarting the story in the middle of things.describing a setting that causes anticipation.slowing down the plot to focus on an important character.speeding up the plot to move the story forward and build tension. What is the range of the data What attractive force pulls electrons toward protons to form chemical bonds?A. Chemical bondingB. Attraction of oppositesC. ElectronegativityD. Ionization energy A sphere has a diameter of 12 ft. What is the volume of the sphere? Give the exact value in terms of[tex]\pi[/tex] Gwen has been hired to do some fact-checking for a major investigative story in a news magazine. What is her primary role?making sure the information in the story is correctfinding background informationidentifying sources for the writer to interviewwriting the article 4. How many moles of KBr are found in 3 Liters of 0.4 M solution?A.7.1molesB. 43.9molesC. 2.6molesD 1.2 moles 7x -14 - 2x = 8x+1 what does x equal? In general, individuals who own private property are more concerned about how nonrenewable resources are used.FalseTrue A Stone dropped down a well takes 2s to reach the water surface (a)calculate the velocity with the stone hits the water The name of the ____ is always the same as the name of the class whose objects it constructs.a. variableb. constructorc. argumentd. method One technological advancement was rudders, which were used by farmers to break up the soil True or false PLEASE IM BEGGING HELP WITH THIS!!!! Please How was your image as a reader shaped by your environment when you grew up as a young child? Reflect on the following: Types of literacies that you were exposed to as a young child. Opportunities that were created to engage with literacy and role adults have played to shape your understanding of literacy. Question 1 of 10Free white immigrants to the United States were allowed to become citizensaccording toO A. the United States ConstitutionB. the Supreme Court ruling about Dred ScottC. the Assimilation Act of 1793O D. the Naturalization Law of 1790 Anyway, I went on walking home, thinking about the movie, and then suddenly wishing I had some company. Greasers can't walk alone too much or they'll get jumped, or someone will come by and scream "Greaser!" at them, which doesn't make you feel too hot, if you know what I mean. We get jumped by the Socs. I'm not sure how you spell it, but it's the abbreviation for the Socials, the jet set, the West-side rich kids. It's like the term "greaser," which is used to class all us boys on the East Side.The Outsiders,S.E. HintonWhat are the opposing forces in this passage?Ponyboy and the greasersgreasers and moviesgreasers and SocsPonyboy and the dark night Find the perimeter of a triangle with vertices A(-3,5), B(-3, 2), and C(1, 2). Which interval describes where the graph of the function is positive?