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2 years ago

12

Which must be true? Select all that apply.

1 answer:

Fittoniya [83]2 years ago

6 0

Answer:

A, B, E

Step-by-step explanation:

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Short explanation?

Leno4ka [110]

Answer: 61.12 ft squared

Explanation: The formula for area of a circle is Pi(radius squared), the line that is eight ft is the diameter of the circle. half of it would be the radius. plug in data as usual but make sure to divide your answer by 2 because you don’t have a complete circle. You only have half. For your triangle the formula is 1/2 base • height. your height would be the 8ft line from the half circle and the base would be the bottom line of the triangle. Don’t forget to divide the base of the triangle by 2. Plug in your data. Then add your two amounts to get your answer.

7 0

3 years ago

Evaluate. 58−(14)2=<br> 5<br> 8<br> -<br> 1<br> 4<br> 2<br> =<br> ________

Alinara [238K]

Can you put the question In good order so I can answer it for you

7 0

3 years ago

Read 2 more answers

-7f+6=116+3f<br><br><br> help me plss

madreJ [45]

Answer: f= -11

Explanation: Know ur algebra lol

7 0

2 years ago

Read 2 more answers

∆ABC is similar to ∆DEF. The ratio of the perimeter of ∆ABC to the perimeter of ∆DEF is 1 : 10. The longest side of ∆DEF measure

exis [7]

Answer:

Part 1) The length of the longest side of ∆ABC is 4 units

Part 2) The ratio of the area of ∆ABC to the area of ∆DEF is $\frac{1}{100}$

Step-by-step explanation:

Part 1) Find the length of the longest side of ∆ABC

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

The ratio of its perimeters is equal to the scale factor

Let

z ----> the scale factor

x ----> the length of the longest side of ∆ABC

y ----> the length of the longest side of ∆DEF

so

$z=\frac{x}{y}$

we have

$z=\frac{1}{10}$

$y=40\ units$

substitute

$\frac{1}{10}=\frac{x}{40}$

solve for x

$x=(40)\frac{1}{10}$

$x=4\ units$

therefore

The length of the longest side of ∆ABC is 4 units

Part 2) Find the ratio of the area of ∆ABC to the area of ∆DEF

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of ∆ABC

y ----> the area of ∆DEF

$z^{2}=\frac{x}{y}$

we have

$z=\frac{1}{10}$

so

$z^2=(\frac{1}{10})^2$

$z^2=\frac{1}{100}$

therefore

The ratio of the area of ∆ABC to the area of ∆DEF is $\frac{1}{100}$

3 0

2 years ago

How did you compute sums of dollar amounts that were not whole numbers? For example, how did you compute the sum of$5.89 and$1.4

nignag [31]

Answer:

$7.34

Step-by-step explanation:

To compute sum of dollars that are not whole numbers. Using the sum of$5.89 and$1.45 as an illustration :

$5.89 + $1.45

Taking the whole numbers first:

$5 + $1 = $6

Take the sum of the decimals :

$0.89 + $0.45 = $1.34

Sum initial whole + whole of sum of decimal

$6 + $1 = $7

Remaining decimal : $1.34 - $1 = $0.34

$7 + $0.34 = $7.34

4 0

3 years ago

Read 2 more answers