Answer:
\(I(-1,0) \to I \ ' \ (-0.25,0)\\\\J(-1,1) \to J \ ' \ (-0.25,0.25)\\\\K(2,2) \to K \ ' \ (0.5, 0.5)\\\\L(2,-1) \to L \ ' \ (0.5,-0.25)\\\\\)
======================================================
Explanation:
The fraction 1/4 is equivalent to the decimal form 0.25
We multiply 0.25 with each coordinate, of each point.
For example, let's focus on point L which is at (2,-1)
x = 2 becomes x = 0.25*2 = 0.5y = -1 becomes y = 0.25*(-1) = -0.25Point L(2,-1) moves to L ' (0.5, -0.25) which will move it closer to the origin, which shrinks the image. Use this idea for the remaining points.
Note: this trick only works if the center of dilation is the origin.
wen and five friends equally share 1/3 of a pan of snack bars. which expression shows how much of the pan each person gets?
The solution is, 1/3 ÷ 6, expression shows how much of the pan each person gets.
What is division?Division is the process of splitting a number or an amount into equal parts. Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.
here, we have,
wen and five friends equally share 1/3 of a pan of snack bars.
so, we get,
the expression is 1/3 ÷ 6
This is because there are 6 friends in all and you are splitting 1/3 of the pan snack bars to each of them.
So, what your splitting/cutting/dividing would be the dividend (1/3) and then the friends would be the divisor (6)
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Find the nth term of this quadratic sequence
3,8,15,24,35
The nth term of the given Quadratic Sequence is n² + 2n.
Given, a sequence of numbers i.e. 3, 8, 15, 24, 35
Now, we have to find the nth term of this quadratic sequence
Let, the quadratic sequence be defined as,
f(x) = ax² + bx + c
Now, as we have f(1) = 3
So, a + b + c = 3 ... (1)
also, we have f(2) = 8
So, 4a + 2b + c = 8 ... (2)
also, we have f(3) = 15
So, 9a + 3b + c = 15 ... (3)
On solving Eq (1) & (2), we get
3a + b = 5 ... (4)
also, On solving Eq (3) & (2), we get
5a + b = 7 ... (5)
Now, on solving Eq (4) & (5), we get
2a = 2
a = 1
On substituting the value of 'a' in Eq. (5), we get
b = 2
So, the quadratic sequence be f(x) = x² + 2x.
Hence, the Quadratic Sequence f(x) = x² + 2x and the nth term be
n² + 2n.
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For the polynomial below, -3 and -1 are zeros.
g(x)=x² +6x³
+9x²-2x-6
Express g (x) as a product of linear factors.
The complete factorization of the polynomial is:
h(x) = (x - 3)*(x - 1)*(x + 2)
Here we have the polynomial:
g(x)= x³ - 2x² - 5x + 6
And we know that x = 3 is a zero, then (x - 3) is a factor.
So if f(x) = a*x² + b*x + c
We can write:
h(x) = (x - 3)*f(x)
Let's find f(x).
Expanding that:
x³ - 2x² - 5x + 6 = (x - 3)*(a*x² + b*x + c)
x³ - 2x² - 5x + 6 = ax³ + bx² + cx - 3ax² - 3bx - 3c
x³ - 2x² - 5x + 6 = ax³ + (b - 3a)x² + (c - 3b)x - 3c
Comparing like terms, we can see that:
a = 1
b - 3 a = -2
c - 3b = -5
-3c = 6
With the first and last equation we can get:
a = 1
c = 6/-3 = -2
Now with one of these values and the second or third equation we can find the value of b.
b - 3 a = -2
b - 3*1 = -2
b - 3 = -2
b = -2 + 3 = 1
Then:
f(x) = x² + x - 2
The zeros of this quadratic function are given by:
x = -1±3 / 2
so, we get,
x = (-1 + 3)/2 = 1
x = (-1 - 3)/2 = -2
Then we can factorize this as:
f(x) = (x - 1)*(x + 2)
And then we can write h(x) as:
h(x) = (x - 3)*(x - 1)*(x + 2)
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complete question:
For the polynomial below, 3 is a zero.
g(x)= x³ - 2x² - 5x + 6
Express g (x) as a product of linear factors.
About 4% of the population has a particular genetic mutation. 100 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 100.
A hemispherical tank is filled with water and has a diameter of 17 feet. If water weighs 62.4 pounds per cubic foot, what is the total weight of the water in a full tank, to the nearest pound?
Answer:
The total weight = 1286 × 62.4 = 80246 pounds.
Step-by-step explanation:
The formula of the volume of the sphere is
V = 4/3×π×r³
Given
d = 17 feet
as
d = 2r
so
r = d/2 = 17/2 = 8.5 feet
as
V = 4/3×π×r³
Since we need half of the volume as it is a hemispherical tank.
\(\frac{V}{2}=\pi r^3\)
\(=\frac{2}{3}\times \:3.14\times \:8.5^3\)
= 1286 ft³
Given that the weighs 62.4 pounds per cubic foot
Thus,
The total weight = 1286 × 62.4 = 80246 pounds.
The total weight of the water in a full hemispherical tank, which is filled with water, is 80,260 pounds.
What is the volume of hemisphere?The volume of the hemisphere is the amount of quantity, which is obtained by it in the 3 dimensional space.
The volume of the hemisphere can be calculated with the following formula.
\(V=\dfrac{2}{3}\pir^3\)
Here, {r} is the radius of the hemisphere.
A hemispherical tank is filled with water and has a diameter of 17 feet. The radius of the hemisphere will be half of the diameter. Thus,
\(r=\dfrac{17}{2}\\r=8.5\rm\;ft\)
The volume of the hemispherical tank is,
\(V=\dfrac{2}{3}\pi(8.5)^3\\V=1286.22\rm\; ft^3\)
The water weighs 62.4 pounds per cubic foot. Thus, the total weight of the water in a full tank is,
\(W={1286.22}\times62.4\\W=80260\rm \;pounds\)
Hence, the total weight of the water in a full hemispherical tank, which is filled with water, is 80,260 pounds.
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Question 15 of 60
Choose the symbol that correctly compares the fractions below.
8 8
-?-
10 10
OA. None of these are correct.
OB. <
C. >
OD. =
SUBMIT
Answer:
D
Step-by-step explanation:
Use spherical coordinates. Evaluate(x2 +y2 + z2)2 dv, where B is the ball with center the origin and radius 3. Need Help? Read It Watch ItMaster It Talk to a Tutor
The triple integral using the spherical coordinates is 16 π .
Given :
Use spherical coordinates. Evaluate( x^2 + y^2 + z^2 )^1/2 dv, where B is the ball with center the origin and radius 3.
we know that ,
= ∫∫∫ ( x^2 + y^2 + z^2 )^1/2 dv
= ∫∫∫ x . x^2 .sin Φ dΦ dθ dx
where lower limits and upper limits are ( 0 , 2 ) , ( 0 , 2 π ) , ( 0 , π ) .
= ∫ x^3 . dx ∫ dθ ∫ sin Φ dΦ
= 2^4 / 4 * 2 π * 2
= 4 * 2 π * 2
= 8 π * 2
= 16 π
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6. Let the function g be defined by g(x) = x4 – x3 – 9x2 + 9x. It is given that
x = 1 is a zero of the function g. Which of the following best represents the fully
factored form of the function g?
Answer:
A
Step-by-step explanation:
There is an x in all for terms that means that x = 0 is one of the factors and H is incorrect.
One of the remaining factors is x^2 - 9 which factors into (x - 3)(x + 3)
You are told that x = 1 is a zero which means x - 1 is a factor.
The answer is g(x) = x (x - 3)(x + 3) (x - 1) which is A
In triangle ABC, AB = 6, BC = 8, and angle ABC = 90 degrees. Find the area of triangle ABC.
Answer:
24
Step-by-step explanation:
The formula for area of any triangle is (length * width) * 1/2. This makes the angle of 90 degrees irrelevant.
6 x 8 = 48
48 / 2 = 24
Select the correct product of the exponential expression 4 ^ 5
Answer:
the answer is 1024
Step-by-step explanation:
Find the volume of a rectangular prism whose side is 10 and length is 13.
The volume of a rectangular prism whose side is 10 and length is 13 as described in the task content is; 1300.
What is the volume of a rectangular prism whose side is 10 and length is 13?It follows from the task content that the rectangular prism in discuss has its side lengths to be 10 and it's height to be; 13.
It therefore follows from the formula for volume of a rectangular prism that the Volume of the prism can be evaluated as follows;
Volume, V = 10 × 10 × 13.
V = 1300.
Ultimately, the volume of the rectangular prism in discuss is; 1300.
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math math math math math math math
The angle m∠JIX is 90 degrees.
How to find angles in line intersection?IX is perpendicular to IJ. Therefore, angle m∠JIX is 90 degrees.
IG bisect CIJ. Hence,
m∠CIG ≅ m∠GIJ
Therefore,
m∠CIX = 150 degrees
Hence, let's find m∠JIX.
Therefore, m∠JIX is 90 degrees because IX is perpendicular to IJ. Perpendicular lines forms a right angle.
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The measure of angle m∠JIX is estimated to be 90⁰.
How to find the angles?You should understand that an angle is a figure formed by two straight lines or rays that meet at a common endpoint, called the vertex.
IX is perpendicular to IJ. Therefore, angle m∠JIX is 90⁰.
Frim the given parameters,
IG⊥CIJ.
But; m∠CIG ≅ m∠GIJ
⇒ m∠CIX = 150⁰
Hence, let's find m∠JIX.
Therefore, m∠JIX is 90⁰ because IX is perpendicular to IJ. Perpendicular lines forms a right angle.
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7 students are running for student council. how many different ways can their names be listed on the ballot
Step-by-step explanation:
7! = 5040 ways
Please help me! I really don't understand this.
Answer:
B
Step-by-step explanation:
x is less than -1 and the point is on -1.
Luna & Ginny each cast magic spells. The ratio of spells Luna casts to spells Ginny casts is 4:5. How many spells did each cast if altogether they cast 63 spells
Answer:
Each cast 7
Step-by-step explanation:
28 + 35 = 63, I just guess and checked
ok so how you do this one is your going to divide the 63 spells by the ratios added and then multiply by 4 and 5
\(63 \div 9 = 7\)
\(7 \times 4 = 28\)
\(7 \times 5 = 35\)
luna casts 28 spells
ginny casts 35 spell
6(2n-8)=12 I need the answer
Answer:
N = 5
Step-by-step explanation:
6 (2n - 8) = 12
12n - 48 = 12
12n = 60
n = 5
HOPE THIS HELPS
PLZZ MARK BRAINLEIST
Answer:
5 = n (i think)
Step-by-step explanation:
6(2(5)- 8) = 12
6(10 - 8)= 12
6 (2) = 12
complete the number pattern 9;27;81?
Answer:
243
Step-by-step explanation:
Going in times 3 so 81 x 3 = 243
Translate 2 3 y − 9 < y + 1 into a sentence. Nine than two-thirds of number is less than the number .
The sentence translation of "2/3y - 9 < y + 1" is "Nine less than two-thirds of a number is less than the number."
To translate the inequality expression "2/3y - 9 < y + 1" into a sentence, we can break it down into smaller parts:
"2/3y" represents two-thirds of a number.
"9" represents the number nine.
"y + 1" represents the number increased by one.
Now let's construct the sentence:
"Nine less than two-thirds of a number" - This refers to the expression "2/3y - 9," indicating that we have subtracted nine from two-thirds of a number.
"is less than" - This is the comparison symbol in the inequality.
"the number" - This refers to the expression "y + 1," representing the number increased by one.
Combining these parts, we form the sentence: "Nine less than two-thirds of a number is less than the number."
Hence, the correct sentence translation of "2/3y - 9 < y + 1" is "Nine less than two-thirds of a number is less than the number."
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What is 2251 rounded to the nearest hundred
Which of the following represents a function
Answer:
All of the examples define relations between a domain and range.
Such a relation will be a function if and only if each value in the domain corresponds to at most one value in the range.
In the first example, the value
−
1
in the domain is associated with two values in the range, namely
−
5
and
1
.
In the second example, the value
−
1
in the domain is associated with two values in the range, namely
7
and
1
.
In the third example, the value
3
in the domain is associated with two values in the range, namely
2
and
4
.
In the fourth example, each of the values in the domain is associated with one value in the range, so this describes a function. Note however that the values
−
4
and
−
7
are both mapped to
5
. So the function described is not one to one and consequently its inverse is not a function.
if a city with a population of 500,000 doubles in size every 64 years, what will the population be 256 years from now?
Answer:
8,000,000
Step-by-step explanation:
This is because 256 divided by 64 is 4, meaning 64 goes into 256 4 times. If 500,000 is being doubled every 64, it means that in 256 years, the population will have been doubled 4 times.
Meaning? Well...
500,000 x 2 = 1,000,000 = 64yrs
1,000,000 x 2 = 2,000,000 = 128yrs
2,000,000 x 2 = 4,000,000 = 192yrs
4,000,000 x 2 = 8,000,000 = 256yrs
This is 4 times.
so every time it's doubled, it means the sum of that number times 2.
Pls helllp!!!
Find the hourly wage: $80 for 9 hours.
O $8.89
O $17.78
O $71
O $10.12
Hey I'm not good at math! please help me!
write the algebraic expression for 3 less than the product of Y and 2
Answer:
2y-3
Step-by-step explanation:
the product of y and 2 is just multiplying
then 3 less means subt. 3
Dana is making bean soup. The recipe she has makes 10 servings and uses
3/4
of a pound of beans. How many total pounds of beans does she need to make 5 servings of soup?
She has
1/16
of a pound of beans in one container and
1/4
of a pound of beans in another container. How many more pounds of beans does Dana need to make the 5 servings of soup? Show your work or explain your answer.
T
What is the domain of the equation that is graphed?
(-9,)
(-3, 16)
• (-0,16)
15
(-7,1)
(-0,-7) and (1...)
O (-0,3)
10
0 (-3,00)
(0,7)
(-7,0)
(1.0)
- 10
Answer:
Step-by-step explanation:
(-9,)
(-3, 16)
• (-0,16)
The manager at a restaurant found that the cost to produce 150 cups of coffee is $21, while the cost to produce 300 cups of coffee is $36. assume the relationship between the cost y to produce x cups of coffee is linear.
a.) write a linear equation that expresses the cost,y, in terms of the number of cups of coffee,x.
b.) how many cups of coffee are produced if the cost of production is $56?
Answer:
\(y = \frac{1}{10}x + 6\)
500 cups cost $56
Step-by-step explanation:
Given
\(x = cups\)
\(y = cost\)
\((x_1,y_1) = (150,21)\)
\((x_2,y_2) = (300,36)\)
Solving (a): Linear Equation
First, we calculate the slope (m)
\(m = \frac{y_2 - y_1}{x_2 - x_1}\)
Substitute right values
\(m = \frac{36 - 21}{300- 150}\)
\(m = \frac{15}{150}\)
\(m = \frac{1}{10}\)
The equation is then calculated as:
\(y = m(x - x_1) + y_1\)
Where
\((x_1,y_1) = (150,21)\)
\(m = \frac{1}{10}\)
This gives:
\(y = \frac{1}{10}(x - 150) + 21\)
Open bracket
\(y = \frac{1}{10}x - \frac{1}{10}*150 + 21\)
\(y = \frac{1}{10}x - 15 + 21\)
\(y = \frac{1}{10}x + 6\)
Solving (b): Cups of coffees for $56
Substitute 56 for y in \(y = \frac{1}{10}x + 6\)
\(56 = \frac{1}{10}x + 6\)
Subtract 6 from both sides
\(-6+56 = \frac{1}{10}x + 6-6\)
\(50 = \frac{1}{10}x\)
Multiply both sides by 10
\(10 * 50 = \frac{1}{10}x * 10\)
\(10 * 50 = x\)
\(500 = x\)
\(x = 500\)
Hence: 500 cups cost $56
=
Divide.
O EXPONENTS AND POLYNOMIALS
Dividing a polynomial by a monomial: Multivariate
(12y'u²-32ysu+15y¹uº) ÷ (-4y²u³)
Simplify your answer as much as possible.
0
X
010
Ś
The simplified expression when a polynomial is divided by a monomial is \(y^3 / u^3 (8u^4 - 3y^2u^4 - 3y^2).\)
What is factoring?A polynomial expression can be represented as a product of other, smaller polynomial expressions through the algebraic process of factoring. The process of factoring can be used to simplify expressions and solve problems. A polynomial equation's roots can be found by factoring, as can the common factors in an expression that can be eliminated. Factoring occasionally enables us to spot trends and connections between several expressions.
Depending on the kind of polynomial and the degree of the terms involved, there are several ways to factor. S
For the given expression \((12y^7u^2-32y^5u^6+15y^7u^6) / (-4y^2u^5)\) factor the common term.
\((12y^7u^2-32y^5u^6+15y^7u^6) / (-4y^2u^5)\\-4y^5u^2(3y^2 - 8u^4 - 3y^2u^4) / (-4y^2u^5)\)
Cancelling the -4:
\(= y^3 / u^3 (8u^4 - 3y^2u^4 - 3y^2)\)
Hence, the simplified expression is \(y^3 / u^3 (8u^4 - 3y^2u^4 - 3y^2).\)
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Solve. -x < 20
Graph on a number lin
Answer:
x > -20
Step-by-step explanation:
-x < 20
When dividing by negative numbers, flip the inequality.
x > -20
inclusive -> open circle
greater than -> to the right
open circle at -20 going to the right
A car rental company charges a daily rate of $35 plus $0.20 per mile for a certain car. Suppose that you rent that car for a day and your bill (before taxes) is $97. How many miles did you drive?
Answer:
360 miles
Step-by-step explanation:
97= 25+0.2m0.2m= 97-250.2m= 72m= 72/0.2m= 360 miles