3 years ago

Due today!!!!!!! Help!!!!!!

Mathematics

1 answer:

Butoxors [25]3 years ago

8 0

Answer:

All except x2-4 and x(x+1)

Step-by-step explanation:

Standard Form: ax^2 + bx + c

Vertex Form: a(x - h)^2 + k

Hope that helps you!!

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One side of a triangle is 6 cm shorter than the base, x. The other side is 4 cm longer than the base. What lengths of the base w

xeze [42]

X= base
one side= x-6
other side= 4+x

x+x-6+4+x = 43

3x=43+2

x=15 length of base

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4 years ago

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I need help. If you can, thank you.

defon

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Y = 2x + 1

Step-by-step explanation:

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Mandarinka [93]

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3 years ago

A sphere has a radius of 3 inches. What is the volume of the sphere rounded to the nearest tenth? Use 3.14 for pi. 28.3 in³ 88.7

Lina20 [59]

<u>ANSWER</u>

The volume of the sphere is $113.0in^3$ .

<u>EXPLANATION</u>

The volume of a sphere is calculated using the formula;

$Volume=\frac{4}{3}\pi r^3$ .

We were given in the question that the radius is $3$ inches. Therefore we substitute $r=3$ in to the formula for finding the volume to obtain;

$Volume=\frac{4}{3}(3.14) (3)^3$

$\Rightarrow Volume=\frac{4}{3}(3.14) (27)$ .

$\Rightarrow Volume=4\times (3.14) (9)$

$\Rightarrow Volume=113.04$

Rounding to the nearest tenth means we should round to one decimal place. This will give us;

$Volume=113.0in^3$

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3 years ago