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2 years ago

Pls answer it pls thanks

Mathematics

2 answers:

Ksenya-84 [330]2 years ago

7 0

Answer:

1072.3

Step-by-step explanation:

V=(2/3)πr³ is the formula.

-hope it helps

klasskru [66]2 years ago

3 0

Answer:

1072.33 cm³

Step-by-step explanation:

The volume of a hemisphere = (2/3)πr³ cubic units ...........where is is radius.

here given radius, r = 8 cm

so using the hemisphere's formula = (2/3) * π * 8³

=(2/3) * π * 8 * 8 * 8

= 1072.33 cm³

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Write an equation in standard form for the line, where the points (-2, -1) and (0, 4) are on the line

DedPeter [7]

Answer:

An equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

Step-by-step explanation:

Given the points

(-2, -1) and (0, 4)

The slope between two points

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-2,\:-1\right),\:\left(x_2,\:y_2\right)=\left(0,\:4\right)$

$m=\frac{4-\left(-1\right)}{0-\left(-2\right)}$

$m=\frac{5}{2}$

Writing the equation in point-slope form

As the point-slope form of the line equation is defined by

$y-y_1=m\left(x-x_1\right)$

Putting the point (-2, -1) and the slope m=1 in the line equation

$y-\left(-1\right)=\frac{5}{2}\left(x-\left(-2\right)\right)$

$y+1=\frac{5}{2}\left(x+2\right)$

$y=\frac{5}{2}x+4$

Writing the equation in the standard form form

As we know that the equation in the standard form is

$Ax+By=C$

where x and y are variables and A, B and C are constants

$y=\frac{5}{2}x+4$

$\frac{5}{2}x-y=-4$

Therefore, an equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

7 0

2 years ago

9.45 x 10^-5 In standard form

scoundrel [369]

The answer is : 0.0000945
Hope this helped have a good day!

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3 years ago

Simplify<br> X2-49<br> Over <br> X2+9x+14

Stels [109]

Answer:

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Step-by-step explanation:

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3 years ago

Which expression is equivalent to (-4y - x) - (3y - 9x)

WINSTONCH [101]

Answer: -7y+8x

Step-by-step explanation: I assume you mean to simplify

Step 1: Remove parentheses : -4y - x - (3y - 9x)

Step 2: -(3y - 9x) = -3y + 9x

Step 3: Simplify: -4y - x - 3y +9x

Step 4: Answer: -7y+8x

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3 years ago

user100 [1]

Answer:

A. y = –5x – 27

Step-by-step explanation:

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7 0

2 years ago