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3 years ago

Write the equation of the line that passes through the points (3, 7) and (3,-8). Put

Mathematics

1 answer:

dlinn [17]3 years ago

3 0

Step-by-step explanation:

Write the equation of the line that passes through the points (3, 7) and (3,-8). Put

your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.

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Anthony is 154 cm tall, his brother Gerry is 5/7 as tall as him. How tall is Gerry?

11111nata11111 [884]

The correct answer is 110 cm

Explanation:

Fractions always include two values (one at the top and the other at the bottom) and they represent the proportion of something, for example, 1/2 of an apple means there is only half apple. Now, to calculate how much is 5/7 of 154 centimeters, simply divide the total number into the denominator (bottom number) and then multiply the result by the numerator (top number). This process is shown in detail below:

$\frac{5}{7}$ - 5 is the numerator and 7 is the denominator

5/7 of 154 cm

154 cm / 7 = 22

22 x 5 = 110 cm

4 0

3 years ago

I need help on questions 48 49 and 50 and u need to find the surface area of the 3 polyhedras please and thank you!

White raven [17]

48. The surface area of a cylinder is given by

... A = 2πr² + 2πrh = 2πr(r+h)

For r = 13 mi and h = 7 mi, this becomes

... A = 2π(13 mi)(13 mi + 7 mi) = 520π mi²

The surface area of the cylinder is 520π mi² ≈ 1634 mi².

49. The surface area of a rectangular prism is

... A = 2(LW + H(L+W))

For L = 20 m, W = 10 m, H = 7 m, this becomes

... A = 2((20 m)(10 m) + (7 m)(20 m + 10 m)) = 2(200 m² + 210 m²) = 820 m²

The surface area of the prism is 820 m².

50. The formula is the same as for problem 48.

For r = 10 m and h = 13 m, this becomes

... A = 2π(10 m)(10 m + 13 m) = 460π m² ≈ 1445 m²

The surface area of the cylinder is 460π m² ≈ 1445 m².

_____

When calculations are repetitive, it is convenient to let a calculator or spreadsheet do them.

7 0

3 years ago

The area of the square is 36 square cm. Find its side.

bonufazy [111]

Answer:

s = 6 cm

Step-by-step explanation:

the area (A) of a square is calculated as

A = s² ( s is the side length )

given A = 36 , then

s² = 36 ( take square root of both sides )

s = $\sqrt{36}$ = 6

7 0

2 years ago

Read 2 more answers

Will mark brainliest!! Please help asap!!

Anna007 [38]

Answer:

the answer is A

Step-by-step explanation:

8 0

3 years ago

Look at the factors of 18 and 30. What is the greatest common factor? factors of 18: 1, 2, 3, 6, 9, 18 factors of 30: 1, 2, 3, 5

kifflom [539]

Answer:

is number 6

Step-by-step explanation:

the greatest common factor is the largest common factor of those.

3 0

3 years ago