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3 years ago

What is 4x-20??????????????

Mathematics

2 answers:

Stella [2.4K]3 years ago

8 0

Answer x - 5 Final answer: x - 5

ohaa [14]3 years ago

6 0

Answer:

-80.......................

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find the height of the cylinder below whose volume is approximately 1000 cubic inches use 3.14 for pi round your answer to the n

gtnhenbr [62]

Answer:

h = 1000 / (3.14)(r²)

Step-by-step explanation:

Given in the question,

volume of cylinder = 1000 inches³

Formula to use

V = πr²h

where V = volume

π = 3.14

r = radius

h = height

1000 = (3.14)(r²)(h)

h = 1000 / (3.14)(r²)

5 0

4 years ago

A pyramid has a rectangular base with edges of length 10 and 24. The vertex of the pyramid is directly 13 units above the center

laiz [17]

Answer:

Step-by-step explanation:

It is given that A pyramid has a rectangular base with edges of length 10 and 24. The vertex of the pyramid is directly 13 units above the center of the base.. then The total surface area = area of rectangular base + area of 2 isosceles triangles with a base of 24 units + area of 2 isosceles triangles with a base of 10 units.

Area of rectangular base = $24{\times}10=240 sq units$

The slant height of isosceles triangles with a base of 24 units = $(\frac{10}{2})^{2}+(13)^{2})^\frac{1}{2}=(25+169)^{\frac{1}{2}}=13.928units$ .

The area of 2 isosceles triangles with a base of 24 units= $\frac{2{\times}24{\times}13.928}{2}=334.281 sq units$

The slant height of isosceles triangles with a base of 10 units = $((12)^{2}+(13)^{2})^\frac{1}{2}=(144+169)^\frac{1}{2}=17.691 units$

The area of 2 isosceles triangles with a base of 10 units= $\frac{2{\times}10{\times}17.691}{2}=176.918 sq units$

The total surface area of the pyramid = 240 + 334.281 + 176.918 = 591.97 sq units.

3 0

3 years ago

What is the area of a circle with a diameter of 5 m use 3.14 for pi round to the nearest tenth

Leya [2.2K]

Answer:

19.6

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Please help me just with 8 and #9.

frosja888 [35]

8) The angles of an octagon are 135 degrees and since they're divided in the middle the angle measures are 67.5.
So 180-67.5-67.5=45 so the measure of the inner degree of each small triangle is 45. There are 3 triangles between points T and P (going clockwise) so its 45(3) is 135 degrees. Your answer is 135 degrees
9) There are 5 triangles between U and I (going counterclockwise) so its 45(5) which is 225

6 0

3 years ago

Please help anyone with this question

Nikitich [7]

Answer:

0.6

Step-by-step explanation:

1. 9 out of 15 = 9/15

2. Use the calculator to find that 9/15 = 0.6

5 0

3 years ago