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3 years ago

BRAINLIST PLEASEEEE HELP

Mathematics

2 answers:

Aleksandr [31]3 years ago

6 0

Answer:

About 527.79

Step-by-step explanation:

formula is A=2πrh+2πr^2

arsen [322]3 years ago

5 0

Answer:

$527.52\:\mathrm{in^2}$

Step-by-step explanation:

The surface area of this cylinder consist of two circles and a 3D outer edge with respect to the circumference. The area of a circle is given as $r^2\pi$ . Using $\pi=3.14$ as requested in the problem, the area of both these circles is:

$2\cdot6^2\cdot 3.14=226.08\:\mathrm{in^2}$ .

The area of the outer edge is the circumference of the circle multiplied by the height. The circumference of a circle is given by $2r\pi$ .

Therefore, the circumference's 3D outer edge is:

$8\cdot2\cdot6\cdot 3.14 = 301.44\:\mathrm{in^2}$ .

Adding these up, the total surface area is:

$226.08+301.44=\fbox{$527.52\:\mathrm{in^2}$}$ .

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Given the points (5, 2) and (7, 10) find the slope of the line going through the two points . Now write the point-slope form of

drek231 [11]

Step-by-step explanation:

the slope of a line is specified as the ratio y/x. that indicates how many units y changes, when x changes a certain amount of units.

so, going e.g. from (5, 2) to (7, 10), x changes from 5 to 7 = +2 units. and y changes from 2 to 10 = +8 units.

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or then fully simplified (leading to the slope- intercept form) :

y - 2 = 4x - 20

y = 4x - 18

for question 2 we do the same thing for (4, -2) and (0, -5).

x changes from 4 to 0, so, -4 units.

y changes from -2 to -5, so, -3 units.

slope = y/x = m = -3/-4 = 3/4

since there is a 0 included, let's use (0, -5) as point for the point-slope form

y - -5 = 3/4(x - 0)

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3 years ago

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3 years ago

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AlekseyPX

Answer:

1.30

Step-by-step explanation:

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4 years ago

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