The actual area of Zahra's office is 50ft².
Proportions are used to solve scale problems using the rule of three.
The drawing is scaled from 6 cm to 15 ft, which means that each 6 cm represents 15 ft of real dimensions.
The length in the drawing is 4 cm, so:
4 cm - x ft6 cm - 15 ftCross multiplication is used:
6x = 60x = 60/6x = 10Her actual office measures are 10 feet long.
The width is 2 cm, so:
2 cm - x ft6 cm - 15 ftCross multiplication is used:
6x = 30x = 30/6x = 5Her actual office measures are 5 feet wide.
Formula of area: l × b
So, 10 × 5 = 50ft²Therefore, the actual area of Zahra's office is 50ft².
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how does the percent equation help solve markup problems i will mark brainliest
Maine has a cold climate in the winter. What is the probability of the temperature falling below 32 Fahrenheit in Maine during the month of January.
The probability is closer to one than zero.
Probability theory is used to analyze and predict the likelihood of events happening in various fields such as statistics, gambling, physics, finance, and more. It allows us to make informed decisions based on the likelihood of different outcomes. In probability theory, the total number of possible outcomes is important to determine the probability of a single event occurring. By comparing the favorable outcomes to the total outcomes, we can calculate the probability of an event happening.
Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it. Probability can range from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event. Probability for Class 10 is an important topic for the students which explains all the basic concepts of this topic. The probability of all the events in a sample space adds up to 1.For example, when we toss a coin, either we get Head OR Tail, only two possible outcomes are possible (H, T). But when two coins are tossed then there will be four possible outcomes, i.e {(H, H), (H, T), (T, H), (T, T)}.
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You notice that the client's bedroom is also proportional to a larger office that you have already completed. The diagram below shows the bedroom (left) and completed office (right). Use this diagram for Questions 3-6.
It cost $120 to buy the materials for crown molding in the completed office. (Crown molding is the decorative border where the walls meet the ceiling. It will go all the way around all four walls.) Using the same materials, how much will it cost to buy all of the crown molding for the bedroom? Round up to the nearest whole dollar.
Answer:
D. 75
Step-by-step explanation:
The cost to buy all of the crown molding for the bedroom would be $75.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
We are given that bedroom and office in the diagrams below are similar rectangles and the walls on the left sides in the diagram are proportional, and the walls on the top sides in the diagram are proportional.
Since it will cost $120 to buy the materials for crown molding in the completed office. Thus Crown molding is the decorative border where , the walls meet the ceiling. It will go all the way around all four walls.
Hence, cost to buy all of the crown molding for the bedroom = $75.
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a business owner by several new computers for the office for 2000 each. the accounting office depreciates each computer by $400 per year. the value y in dollars for each computer can be represented by y = 2,000 - 400x, where x is the number of years after purchase.How much will computer be worth 1 year after purchase?After how many years with a computer be rough 400 dollars?
Buy computer price = $2000
After 1 year
Computer Y= 2,000 - 400•1 = $1600 dollars
Price $400 after how many years?
X= (2000 - Y)/400 = (2000 - 400)/400= 1600/400= 4
Then answer is
After 4 years, price will go to 400 dollars
A rectangle has vertices at these coordinates.
(0, 8), (5, 8), (5, 0)
What are the coordinates of the fourth vertex of the rectangle?
Enter the coordinates in the boxes.
Answer:
Step-by-step explanation:
(0,0)
i hope this helps
if 3/4 of the 200 seeds sprouted, how many seeds did not sprout?
Answer:
The exact answer is 16.6666666667. Rounded would be about 17.
Step-by-step explanation:
Hope i was right and this helped!
Answer:
200 seeds
Step-by-step explanation:
Hope this helps
SCALCET8 3.10.025. Use a linear approximation (or differentials) to estimate the given number. (Round your answer to five decimal places.) 3 126
Answer:
\(f(126) \approx 5.01333\)
Step-by-step explanation:
Given
\(\sqrt[3]{126}\)
Required
Solve using differentials
In differentiation:
\(f(x+\triangle x) \approx f(x) + \triangle x \cdot f'(x)\)
Express 126 as 125 + 1;
i.e.
\(x = 125; \triangle x = 1\)
So, we have:
\(f(125+1) \approx f(125) + 1 \cdot f'(125)\)
\(f(126) \approx f(125) + 1 \cdot f'(125)\)
To calculate f(125), we have:
\(f(x) = \sqrt[3]{x}\)
\(f(125) = \sqrt[3]{125}\)
\(f(125) = 5\)
So:
\(f(126) \approx f(125) + 1 \cdot f'(125)\)
\(f(126) \approx 5 + 1 \cdot f'(125)\)
\(f(126) \approx 5 + f'(125)\)
Also:
\(f(x) = \sqrt[3]{x}\)
Rewrite as:
\(f(x) = x^\frac{1}{3}\)
Differentiate
\(f'(x) = \frac{1}{3}x^{\frac{1}{3} - 1}\\\)
Using law of indices, we have:
\(f'(x) = \frac{x^\frac{1}{3}}{3x}\)
So:
\(f'(125) = \frac{125^\frac{1}{3}}{3*125}\)
\(f'(125) = \frac{5}{375}\)
\(f'(125) = \frac{1}{75}\)
So, we have:
\(f(126) \approx 5 + f'(125)\)
\(f(126) \approx 5 + \frac{1}{75}\)
\(f(126) \approx 5 + 0.01333\)
\(f(126) \approx 5.01333\)
In the game of “rock, paper, scissors”, rock beats scissors, paper beats rock and scissors beats paper. If the
game is played between two people, on which game would you reasonably expect to win for the first time?
a. 1st game c. 3rd game
b. 2nd game d. 4th game
Answer:
C because you would have completed every outcome
What is the present value of R13 000 p.a. invested at the beginning of each year for 8years at 10%p.a. compound interest? (NB Use the compound interest tables provided or work to three decimal places only.)
Given statement solution is :- The present value of R13,000 per year invested for 8 years at 10% compound interest is approximately R69,776.60.
To calculate the present value of an investment with compound interest, we can use the formula for the present value of an annuity:
PV = A *\((1 - (1 + r)^(-n)) / r\)
Where:
PV = Present value
A = Annual payment or cash flow
r = Interest rate per period
n = Number of periods
In this case, the annual payment (A) is R13,000, the interest rate (r) is 10% per year, and the investment is made for 8 years (n).
Using the formula and substituting the given values, we can calculate the present value:
PV = \(13000 * (1 - (1 + 0.10)^(-8)) / 0.10\)
Calculating this expression:
PV = \(13000 * (1 - 1.10^(-8)) / 0.10\)
= 13000 * (1 - 0.46318) / 0.10
= 13000 * 0.53682 / 0.10
= 6977.66 / 0.10
= 69776.6
Therefore, the present value of R13,000 per year invested for 8 years at 10% compound interest is approximately R69,776.60.
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which of these statements below are true? Select all that apply
Answer:
Step-by-step explanation:
the answer is D i'm pretty sure
The figure shows four box-and-whisker plots. These represent variation in travel time for four different types of transportation from the beginning to the end of one route.
Conrad is at one end of the route. He is trying to decide how to get to an appointment at the other end. His appointment is in 30 minutes. Which type of transportation is LEAST likely to take more than 30 minutes?
Select one:
a.
bus
b.
car
c.
subway
d.
train
Comparing the median of each box-and-whisker plot, the type of transportation that is LEAST likely to take more than 30 minutes is: d. train.
How to Interpret a Box-and-whisker Plot?
In order to determine the transportation that is LEAST likely to take more than 30 minutes, we have to compare the median of each data set represented on the box-and-whisker plot for each transportation.
The box-and-whisker plot that has the lowest median would definitely represent the the transportation that is LEAST likely to take more than 30 minutes, since median represents the typical minutes or center of the data.
Therefore, from the box-and-whisker plots given, the one for train has the lowest median. Therefore train would LEAST likely take more than 30 minutes.
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A) y= 3x + 10
B) y= 3x + 60
C) y= 4x + 5
D) y= 4x + 35
Answer:
d or a
Step-by-step explanation:
50/55/100/105/.................
Which value is equilivent to x+4/4+x
Answer:
It's 1
Step-by-step explanation:
any number or expression divided by itself is 1
Answer:
1
Step-by-step explanation:
The expression (x + 4) / (4 + x) simplifies to 1 because no matter what value you choose for x, when you add 4 to it and add the same value to 4, you always get the same result in the numerator and denominator, making them cancel out and equal to 1.
Estimate 62% of 196.
A. 80
B. 100
C. 120
O D. 140
HURRY PLEASE
Answer:
The answer is C: 120
Step-by-step explanation:
Ok so to solve this, you need to know that when "of" is in an equation, it always means multiply.
So 62% of 196 = 62% * 196.
62% * 196 = 121.52
Then you need to round 121.52 to the nearest option, which is Option C: 120.
Good luck on your assignment (or whatever this is)!! Have a nice day!!
What is the subtraction fact?
Facts about subtraction are groups of numbers written as subtraction sums using the equals sign and the minus sign. An example of a subtraction fact is 10 - 5 = 5. Since 10 is the number being subtracted from, the fact is a subtraction from 10 fact.
Subtraction:
Subtraction serves as a representation for the act of removing items from a collection. The negative symbol stands for subtraction. For example, if four of the nine oranges that are stacked together (as in the above illustration) are then transported to a basket, the stack will now contain five oranges rather than nine. Therefore, the difference between 9 and 4 is 5, which equals 9 minus 4. In addition to applying it to natural numbers, subtraction can also be used with other kinds of numbers. The letter "-" represents subtraction. Minuend, subtrahend, and difference are the three numerical components that make up the subtraction operation.
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Please can you help me
Answer: 340 children
a quarter is 1/4.
1,360 is the total number of children.
1,360 ÷ 4 = 340
Select the correct answer.
An airline operates in only 10 destinations in 2015, but plan on adding more destinations each year. In 2016, the number of destinations will be
twice the initial number of destinations. Then, in 2017, the number of destinations will be twice the number of destinations the previous year. If
this pattern continues, which of the following graphs represents the number of destinations in which the airline will operate over time?
Answer:
would need to see the graph
Step-by-step explanation:
see answer advice
Select the correct answer from each drop-down menu.
The total area of the three triangles is
square units.
The area of the figure is
square units.
The total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
What is the triangle?The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.
From the figure, the area of triangles can be calculated using the:
Area = (1/2)height×base length
Area of three triangle = 1/2(4×6) + 1/2(6×4) + 1/2(4×6)
Area of three triangle = 1/2(24×3) = 36 square units
Area of the figure = area of three triangle + area of the rectangle
= 36 + 6×4
= 60 square units
Thus, the total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
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Find the solution for the following: Three backpackers cooked rice for dinner. The first one gave 400g of rice and the second 200g of rice. The third one did not have any rice so he gave $6 to the other two. How should they divide the $6 in a fair way ( assume they equally shared the dinner) ?
Answer:
First backpacker should receive $4 and the second one $2
Step-by-step explanation:
notice that the total amount of rice for the three is 600 g.
Then, the first one that gave 400 g contributed 400 out of 600, that is 400/600 = 2/3
The second one contributed 200 out of 600, that is 200/600 = 1/3
then the first one should receive 2/3 of the $6 = (2/3) x 6 = $4
and the second one should receive 1/3 of the %6 = (1/3) x 6 = $2
\(f(x) = - 5x - 4\)
which function is the inverse of
Answer:
5 x - 4
Step-by-step explanation:
Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=x5+45 f - 1 ( x ) = x 5 + 4 5 is the inverse of f(x)=5x−4 f ( x ) = 5 x - 4 .
Dairy Queen, as part of Warren Buffet’s Berkshire Hathaway (BRKA) with 6,400 locations in the USA, gave away free ice cream cones to celebrate its 75th anniversary. If Warren Buffet has a bond bought at 105.25 at 4.75%, what is the current yield?
Current yield = 4.51%
What is the price of a bond?The price of a bond is equal to the future cash flows' present value, discounted at the appropriate discount rate—the yield to maturity.
The price of a bond is the amount that investors are willing to spend on an existing bond. Bond prices are stated as a percentage of face (par) value in the online offering table and statements you get.
Current Yield=Annual Cash Inflows/Market Price
Annual cash flow is 4.75% of 100 = $4.75
Market Price of Bond = $105.25
Current Yield = 4.75/105.25
=4.51%
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Suppose a quadratic equation has the form x^2 + x + c = 0. Show that the constant c must be less than 1/4 in order for the equation to have two real solutions.
Answer:
see explanation
Step-by-step explanation:
Given a quadratic equation in standard form
ax² + bx + c = 0 ( a ≠ 0 )
Then for the equation to have 2 real roots , the discriminant must be greater than zero , that is
b² - 4ac > 0
x² + x + c = 0 ← is in standard form
with a = 1, b = 1, c = c , then
b² - 4ac > 0
1² - (4 × 1 × c) > 0
1 - 4c > 0 ( subtract 1 from both sides )
- 4c > - 1
Divide both sides by - 4, reversing the inequality as a result of dividing by a negative quantity.
c < \(\frac{1}{4}\)
What is the area of the trapezoid?
Answer:
36 cm
Step-by-step explanation:
Is this positive trend or negative trend or no trend
Answer:
No trend
Step-by-step explanation:
In this scatter graph, all of the points are just scattered over a wide range. There's no real trend/correlation, so there's no trend.
Answer:
the answer is no trend bc ..
Step-by-step explanation:
the points are scatters and aren't in a specific pattern
what are three ratios that are equivalent to 8 5
Answer:
15:24, 20:32 and 40:64.
Step-by-step explanation:
hope this helps
Answer:
The ratios that work is 15:24 because 5 x 3= 15, 24 x 3 = 24 as they both have a 3 as factors. There's also 20:32 as they both have a 4 as factors and lastly 16:10 because they both have a 2 as factors.
Step-by-step explanation:
The ratios that work is 15:24 because 5 x 3= 15, 24 x 3 = 24 as they both have a 3 as factors. There's also 20:32 as they both have a 4 as factors and lastly 16:10 because they both have a 2 as factors.
28. Identify the domain and range of the graph below.Domain 0≤y≤10; Range: 2≤x≤7Domain: All real numbers; Range: All numbers greater than y = 2.Domain: 0≤x≤ 10; Range: 2≤y≤7Domain: 2 ≤x≤7; Range: 0≤y≤ 10
ANSWER :
Domain: 0≤x≤ 10; Range: 2≤y≤7
EXPLANATION :
The given graph is defined from x = 0 to x = 10
Therefore, the domain is 0≤x≤ 10
The graph is also defined from y = 2 to y = 7
Therefore, the range is 2≤y≤7
6th grade math help me please
Answer:
i think -50
Step-by-step explanation:
im not 100% sure tho
Determine if the expression - 8n ^ 2 * m ^ 4 + 9m ^ - 1 * n ^ 2 + 6n ^ 4 * is a polynomial or not. If it is a polynomial, state the type and degree of the polynomial.
Step-by-step explanation:
In mathematics, a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.
since there is a term of m^-1 (a negative exponent) that we cannot combine with others (as it is not multiplied with another m-based term), it is NOT a polynomial.
13
Use the drawing tools to form the correct answer on the graph.
Graph the composite function (f(x)).
f(x) = -2x- 5
g(x) =x - 1
Drawing Tools
Select
Point
Click on
The graph of the composition of functions is on the image at the end.
How to graph the composite function?Here we want to graph the composition of the functions g(x) and f(x), where:
f(x) = -2x - 5
g(x) = x - 1
The composition:
g(f(x)) will give:
g(f(x)) = f(x) - 1 = -2x - 5 - 1 = -2x - 6
So it is just a linear function, basically it is a translation of 1 unit down of f(X), the graph of this composition is on the image at the end.
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2.8125 rounded to the nearest tenth please!
Answer:
2.8
Step-by-step explanation:
The tenths place is one place to the right of the decimal place.
Since 1 is less than 5, you keep 8 in the tenths place.