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3 years ago

37 + (-37) im looking for the answer

Mathematics

1 answer:

Ksju [112]3 years ago

7 0

Answer:

Step-by-step explanation:

37 + (-37)

open the bracket

remember when u multiply the bracket - sign and + sign also gets multiplied and (-) * (+) is( -) . So

37 - 37

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the radius of a cylindrical gift box is (4x+3) inches. The height of the gift box is three times the radius. what is the surface

Crazy boy [7]

We have that
surface area of the cylinder=2*[pi*r²]+[2*pi*r*h]
r=(4x+3)
h=3*r=3*(4x+3)
S=2*[pi*(4x+3)²]+[2*pi*(4x+3)*(3*(4x+3))]------> 2*[pi*(4x+3)²]+[6*pi*(4x+3)²]
S=8*pi*(4x+3)²----> 8*pi*[16x²+24x+9]-----> 402.12 x²+603.19x+226.19

the answer is S=402.12 x²+603.19x+226.19 (8pi[16x²+24x+9])

5 0

3 years ago

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Alex787 [66]

Please type English 2

8 0

2 years ago

Which statement about Eduardo’s calculations is true?

jeyben [28]

Answer:

"Eduardo did not use the correct formula for the circumference"

Step-by-step explanation:

The circumference formula is C = 2πr

Area formula is A=πr^2

Volume formula is correct. The steps area also correct to find r, the radius.

But in the end, he put the formula for circumference wrong. He used the formula for Area, NOT Circumference.

Hence, "Eduardo did not use the correct formula for the circumference" should be the correct choice for this question.

3 0

4 years ago

Find the coordinate A if M (-5,-9) is the midpoint of AB and B has coordinate of (3,-5)

rodikova [14]

The coordinates of Point A are (-13,-13)

Step-by-step explanation:

The formula for mid-point of two points (x1,y1) and (x2y2) is given by:

$M = (\frac{x_1+x_2}{2} , \frac{y_1,y_2}{2})$

Given

M = (-5,-9)

B(x2,y2) = (3,-5)

Putting the values

$(-5,-9) = (\frac{x_1+3}{2} , \frac{y_1-5}{2})$

Comparing respective elements

$\frac{x_1+3}{2} = -5\\x_1+3 = -5 * 2\\x_1+ 3 = -10\\x_1 = -10-3\\x_1 = -13\\AND\\\frac{y_1-5}{2} = -9\\y_1-5 = -9 * 2\\y_1-5 = -18\\y_1 = -18+5\\y_1 = -13$

Hence,

The coordinates of Point A are (-13,-13)

Keywords: Coordinate geometry, mid-point

Learn more about mid-point at:

#LearnwithBrainly

4 0

4 years ago

A triangle has a sides (x) feet, (x+3) feet, and (x+5) feet. The perimeter is 99.5 feet What is the measure for the largest side

ASHA 777 [7]

Answer:

35.5 feet

Step-by-step explanation:

x + x + 3 + x + 5 = 99.5

3x + 8 = 99.5

3x = 91.5

x = 30.5

Largest side = (x+5)

30.5 + 5 = 35.5 feet

3 0

3 years ago