Unit 11 Homework 1: Area of Plane Figures

Answers

Answer 1

Answer: 4. 432 cm^2/2 = 216 cm^2

6. 309.76 mm^2

8. pi * 22^2 = 484pi (or, approximately 1,519.76) in^2

484/2 = 242pi or 759.88 in^2.

10. 297.84 in^2/2 = 148.92 in^2

Step-by-step explanation:

To find the area of a triangle, you take the base and multiply by the height, and then divide by 2. Hence giving me the answers I obtained in #4 and #10.

A square is equal on all sides, so you would just square the measurement of the one side.

To find the area of a circle, you would do pi times the radius^2. Since this is a semicircle, you actually should divide the number you got by 2. (Which is why I did so up above).

Answer 2

Answer: There’s nothing

Step-by-step explanation:


Related Questions

Help me PLEASEEE NO LINKS AND PLEASE DO NOT ANSWER FOR POINTS YOU WILL BE REPORTED IF YOU DO AND THANK YOU TO THOSE WHO ARE GOING TO HELP ME

Answers

Answer:

160 the total area

Step-by-step explanation:

10×10=100=area of square

5×12=60=area of triangle

HELP PLEASE
In the figure below, m∠A = 72° and m∠B = (5x + 8)°.



If ∠A and ∠B are supplementary angles, which equation represents their relationship, and what is the value of x?

A.
72 + (5x + 8) = 90
x = 34
B.
72 + (5x + 8) = 180
x = 52
C.
72 + (5x + 8) = 90
x = 2
D.
72 + (5x + 8) = 180
x = 20

Answers

Answer:

D. 72 + (5x + 8) = 180, x = 20.

Step-by-step explanation:

Supplementary angles are angles that add up to 180, so the equation would be 72 + (5x + 8) = 180.

Now here, to find the value of x, solve for x.

72 + (5x + 8) = 180

5x + 8 = 108

5x = 100

x = 20

Your answer is D, 72 + (5x + 8) = 180, x = 20.

Identify whether each cube root or square root lies between 2 and 3, 4 and 5, or 9 and 10.

Answers

Answer:

The cube root and square root are not given, but I'm going to give a chart that might help.

Square roots:

2 = √4

3 = √9

4 = √16

5 = √25

9 = √81

10 = √100

Cube roots:

2 = ^3√8

3 = ^3√27

4 = ^3√64

5 = ^3√125

9 = ^3√729

10 = ^3√1000

A baker has small and large bags of sugar for making cakes. The large bag contains 30 cups cups of sugar and is 2.5 times larger than the small bag. The small bag contains enough sugar to make 9 cakes and have 0.75 cups of sugar remaining. How many cakes can be made with a large bag of sugar?

Answers

Answer:

Step-by-step explanation:

The first thing we need to focus on is the fact the large bag (30 cups) is 2.5 larger than the small bag. So, the first we need to do is divided 30 by 2.5, which is 12. (300/25 = 30/2.5 = 12, in case you're confused.) So the small bag has 12 cups of sugar.

What that down, we need to focus how many cakes the small bag can make, which was 9. 3/4 of a cup is left over. We can create an equation from that info, that being 9x + 0.75 = 12. Now let's solve for x.

9x + 0.75 = 12

First, subtract 0.75 from both sides. With that, we can solve for x directly.

9x = 12 - 0.75

9x = 11.25

Now, divide both sides by 9.

x = 11.25/9

x = 1.25

With that, we now know that each cake needs 1.25 cups of sugar.

With that, the last thing we need to is divide 30 by 1.25. Again, I can use powers of ten, to quickly divide 3000 by 125 (10²) to get 24 cakes.

With that done, we have our answer. 24 cakes can be made with a large bag of sugar.

I hope this helps!  (⌒ω⌒)

What’s the correct answer for this question?

Answers

Answer is 7
Step by step explanation
|-7|=7

10 POINTS FOR THE CORRECT ANSWER PLEASE HELP ME

Answers

Answer:

x = 10

Step-by-step explanation:

I made a right triangle with a leg of 6 (7-1), base of 7, and hypotenuse of 'x' and then used the pythagorean theorem:

6² + 8² = x²

100 = x²

x = √100

x = 10

The answer for x would be 10

Jasmine has $4.90 in quarters, dimes, nickels, and pennies. She has 2 more dimes than quarters. She has 3 more nickels than quarters. She has 4 more pennies than quarters. How many quarters does Jasmine have? Note: A quarter is worth $0.25, a dime is worth $0.10, a nickel is worth $0.05, and a penny is worth $0.01.

Answers

Answer:

dw

Step-by-step explanation:

Write the following expression without negative exponents and without parentheses. -3x^-2

Answers

Answer: -3/x^2

The negative exponent correlates to the x. In order for the exponent to be positive, it changes from the numerator to the denominator.

What’s the answer to this question ?

Answers

Step-by-step explanation:

112=35+d

112-35=d

d=77

hope it helps u

subtract 35 from both sides and d= 77

9 = 3 (1/2 + k)
explanation

Answers

K= 5/2 or 2 and 1/2 or 2.5

help i'll give you brainlyest

Answers

Answer: it c i think   if im wrong dont be mad 0-0

Step-by-step explanation:

ok thx

At noon, it was -18 degrees in Billings, MT. At the same time, it was 42 degrees in Mesa, AZ.

How much warmer was Mesa than Billings at noon?

Answers

Answer:

60℉ Warmer

Step-by-step explanation:

Since it is a negative temperature in Billings, you need to add 18+42 ( The temp in Mesa ) to get 60 because you need to get how much warmer.

Hope that helps

In Springfield, a specific town in the US, 6 women and 25 men earned bachelor degrees in 2000. In 2010, however, 391 women and 410 men in that town earned bachelor degrees. Assume that the rate of change was constant between 2000 and 2010.
a. Without using regression, write a system of equations that model the number of bachelor degrees earned by men and women in Springfield as a function of x, the number of years since 2000. Show your work.
Equation for Springfield’s men:
Equation for Springfield’s women:

Answers

Answer:

See below

Step-by-step explanation:

For women, the initial number is 6, constant rate of change is w, number of years is x.

Find the rate of change and work out the required formula:

10w + 6 = 391 ⇒ 10w = 385 ⇒ w = 38.5

Formula:

W(x) = 38.5x + 6

Similarly for men, we get:

10m + 25 = 410 ⇒ 10m = 385 ⇒ m = 38.5

Formula:

M(x) = 38.5x + 25

Answer:

Women = 44.5

Men = 63.5

Step-by-step explanation:

4) Suppose y varies inversely with the SQUARE ROOT of x.
When x = 4, y = 100.
Which variation equation you need to use? (a) y = kx or (b) y = k/x?
Find the constant of Variation (K) and then find the Variation Equation by plugging the value of k.

Answers

Answer:

Variation equation: y = k/√x

constant of variation: 200

Variation Equation by plugging the value of k: y = 200/√x

Step-by-step explanation:

If y varies inversely with the SQUARE ROOT of x, then;

y = k/√x

If  x = 4, y = 100.

100 = k/√4

100 = k/2

200 = k

k = 200

Substitute into the expression

y = k/√x

y = 200/√x

Let y = 2t+ 5 be a linear function representing the distance from home for an
ant t minutes after starting out from a location near its home. What does the
number 5 represent in this function?

Answers

Answer:

5 represents the distance from the home that the ant started at.

Step-by-step explanation:

5 represents the distance from the home that the ant started at.

2mn – 5z + 7

PLEASE HELP!!

Answers

Answer:

it's already simplified

what do you want me to do? tell me what kind of equation it is?

it's a linear trinomial

Step-by-step explanation:

It’s already simplified I don’t get what your asking

Is -5>2 true or false explain your answer

Answers

Answer:

It's false

Step-by-step explanation:

it's false because the number that is closer to 0 is the greater number so it would be 2> -5

Billy has two tables to seat the 12 people.
The top of each table is a rectangle 3 m by 1 m.
Each person sat at a table needs a space of length 1 m.
Billy wants to put the two tables together so that
they touch along one edge
all 12 people can sit at a table. Draw a diagram to show how Billy can put the two tables together.
Use the space below to draw your diagram.​

Answers

Answer:

What is this I have not understand

URGENT!! I NEED HELP ASAP NOT ROCKY
Ryan wishes to purchase a new boat and can afford monthly payments of up to $300 per month. Finance is available and the terms are that the loan lasts for 3 years, and the annual interest rate is 12%. What is the maximum price for a boat that Ryan's budget can afford? Round your answer to the nearest hundred dollars.

Answers

Answer:

$9000

Step-by-step explanation:

Given

Monthly payment P = $300Time t = 3 years = 36 monthsNumber of payments n = 36Interest rate r = 12% PA = 1% per month = 0.01 times

Use loan payment formula:

P = r(PV) / (1 - (1 + r)⁻ⁿ), where P- monthly payment, PV - present value (amount of the loan), r -rate of interest, n- number of payments

Substitute values and solve for PV:

300 = (0.01*PV) / (1 - (1 + 0.01)⁻³⁶)PV = 300*(1 - 1.01⁻³⁶ )/ 0.01 PV = 9032.25 ≈ $9000 (rounded to the nearest hundred dollars)

Write an expression for "six minus b".

Please help!!

Answers

Answer:

6 - b

Step-by-step explanation:

b doesn't have a value.

The net of a triangular prism is shown
What is the surface area of the prism

A. 46 cm
B. 54 cm
C. 69 cm
D. 72 cm
E. 96 cm

Answers

Answer:

D

Step-by-step explanation:

Formula

SA = 2*triangles  + 2 * rectangles on the east and west + 1 base rectangle

Triangles

Area = 1/2 * b * h

Area = 1/2 * 6 * 4

Area = 12

But there are 2 of them so the surface area = 24

Base

Area = L * W

Area = 6* 3

Area = 18

Other 2 rectangles

Area one of them = L * W

L = 5

W = 3

Area one of them = 5*3

Area one of them = 15

But there are 2 of them so the area = 2*15 = 30

Total area = 24 + 18 + 30

Total area = 72

D

12
2 + 8
2
=
-10c + 40c + 32c =
2x + (-5x)=
-23x + 10x =

Answers

Answer:

62 c

-3x

-13x are the answer

Answer:

hi

Step-by-step explanation:

-10c + 40c + 32c =62c

2x+(-5x)= -3x

-23x+10x= -13x

hope it helps

have a nice day

GIVING BRAINLY need urgent help give evidence if you just answer for points you will be reported no biTLY LINKS

Answers

Answer: I think the first one so A.

The y-intercept is the value of y when x equals 0.
What is the y-intercept of the line with the
equation y= 2x + 8?

Answers

Answer:

(0, 8)

Step-by-step explanation:

To find the y- intercept of the line, substitute x= 0 into the equation.

y= 2x +8

When x= 0,

y= 2(0) +8

y= 8

Thus, the y-intercept of the line is (0, 8).

write numbers on the blanks to create a different expression that is equal to (3+4)+5

Answers

Answer:

(3+4)+5=12

Step-by-step explanation:

(3 + 4 ) = 7

7 + 5 =

12

Abeer sat a French test and a German test.
In the French test she scored 34 out of 50.
In the German test she scored 14 out of 20.
In which test did she do better?
You must show your working.

Answers

Answer:

German Test

Step-by-step explanation:

Find common denominator:

34/50=68/100

14/20=70/100

Therefore, Abeer did better on the German test as 14/20>34/50

which expression is equivalent to 7/12 - 2/12

Answers

Answer:

5/12

Step-by-step explanation:

7/12-2/12=5/12=0.416

PLEASE HELP QUICKLY I WILL GIVE BRAINIEST IF U GET IT RIGHT math teacher assigns anywhere from 15 to 35 problems for homework three nights a week. Over the past three weeks, she recorded the number of problems in each assignment and made the box plot shown above. Which of the sets of numbers below matches the given box plot?

A.

Number of Problems: 15, 17, 22, 22, 22, 25, 28, 30, 35


B.

Number of Problems: 15, 20, 22, 22, 23, 25, 28, 30, 35


C.

Number of Problems: 15, 20, 22, 22, 22, 25, 28, 30, 35


D.

Number of Problems: 15, 20, 22, 22, 22, 25, 26, 30, 35

Answers

The answer would be A sorry if wrong

There are 400 pupils in a primary school.
Of the 400 pupils, 88 play a musical instrument.
Express the number of pupils who play a musical instrument as a fraction of the 400
pupils.
Give your answer in its simplest form.

Answers

Answer:

11/50

Step-by-step explanation:

[tex] \frac{88}{400} = \frac{11}{50 } [/tex]

Answer:

total number of pupils = 400

number of pupils play musical instruments = 88

number of pupils who play a musical instrument as a fraction form = 88/400

in simplest form = 11/50

X is a discrete random variable. The graph below defines a probability distribution for X.
What is the expected value of X?

Answers

Answer: 1.1

Step-by-step explanation:

Expected value is the weighted average of the various possibilities and their probability of occurring.

The probabilities represented are:

0.35, 0.35, 0.15 and 0.15.

They add up to:

= 0.35 +0.35 + 0.15 + 0.15

= 1

The possibilities are; 0, 1, 2 and 3.

Expected value = (0.35 * 0) + (0.35 * 1) + (0.15 *2) + ( 0.15 * 3)

= 1.1

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