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erastova [34]
3 years ago
8

Select the correct answer.

Mathematics
1 answer:
andrew11 [14]3 years ago
5 0
Answer: 45

Explanation:
The sine of any acute angle is equal to the cosine of its complement. The cosine of any acute angle is equal to the sine of its complement. of any acute angle equals its cofunction of the angle's complement. Yes, there is a "relationship" regarding the tangent of the two acute angles (A and B) in a right triangle.
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The area of a circle with the radius 3 feet is ____ ft^2 ? Rounded to the nearest hundredths
nordsb [41]

Answer:

28.26ft^2

Step-by-step explanation:

The formula for area of circle is:

A=3,14*r^2, where r =3 and 3,14 is pie number, so we have

A=3.14*9=28,26

5 0
3 years ago
Read 2 more answers
Angela has half of her birthday cake left over from her party. She wants to share the leftover cake equally between her and her
hjlf
25% each or .25 her plus three friends =4 /4 =1 /
7 0
2 years ago
If f(x)=4x+10, find f(2)
Genrish500 [490]

Answer:

18

Step-by-step explanation:

f(2)=4x+10

f=(4)(2)+10

f=8+10

f=18

4 0
3 years ago
A rectangular living room has a perimeter of 38 meters and an area of 90 square meters.
ruslelena [56]

Answer:

10 meters by 9 meters

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP!!!!!!!!<br> also, show all work<br> Thank you:)
barxatty [35]

Problem 1

<h3>Answer:  104 cubic inches</h3>

----------------------

Explanation:

The prisms are similar so they have the same shape, but different sizes.

The linear scale factor from small to large is:

large/small = 10/4 = 2.5

Meaning that we multiply each dimension of the smaller prism by 2.5 to get the corresponding side length of the larger prism

4*2.5 = 10

This linear scale factor is then cubed to get the volume scale factor

(2.5)^3 = 15.625

Which tells us:

larger volume = 15.625*(smaller volume)

smaller volume = (larger volume)/15.625

smaller volume = (1625)/15.625

smaller volume = 104 cubic inches

========================================================

Problem 2

<h3>Answer:  650 square inches</h3>

----------------------

Explanation:

We will go back to the linear scale factor of 2.5

This time, we square it to get (2.5)^2 = 6.25

This is the surface area scale factor.

larger surface area = 6.25*(smaller surface area)

larger surface area = 6.25*(104)

larger surface area = 650 square inches

4 0
2 years ago
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