All categories

3 years ago

Factor the expression. -x^2+3x+40

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

8 0

I hope this helps you

You might be interested in

Five friends decided to get together to bake cookies for a fundraiser. In total, they baked 144 cookies and packaged them in doz

Irina-Kira [14]

All you have to do is 144/12=12 so therefore there are 12 packages of cookies they had to bake for a fundraiser.

3 0

2 years ago

Read 2 more answers

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed. A sphere with height h a

Elodia [21]

We have been given that a sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed. We are asked to find the volume of the sphere.

We know that height of sphere is equal to its radius. This means that $r=h$ .

$\text{Volume of sphere}=\frac{4}{3}\pi r^3$

$\text{Volume of cylinder}=\pi r^2 h$

Using $r=h$ , we will get:

$\text{Volume of cylinder}=\pi r^2\cdot r$

$\text{Volume of cylinder}=\pi r^3$

Upon comparing volume of sphere and volume of cylinder, we can see that volume of sphere is $\frac{4}{3}$ times volume of cylinder.

$\pi r^3=21$

$\frac{4}{3}\pi r^3=\frac{4}{3}\cdot 21$

$\frac{4}{3}\pi r^3=4\cdot 7$

$\frac{4}{3}\pi r^3=28$

Therefore, the volume of the sphere would be 28 cubic meters.

4 0

2 years ago

Read 2 more answers

How many integers between 14 and 3,452 can be divided by 42 with a remainder of zero?

soldi70 [24.7K]

_______
42 I 3,452

82 with a remainder

There are <u>82</u> integers between 14 and 2452 that can be divided with a remainder of 0

4 0

3 years ago

(1+sin y)(1+sin (-y))=cos^2 y)

Sloan [31]

$(1+siny)(1+sin(-y))=cos^2y\\\\L=(1+siny)(1-siny)=1^2-sin^2y=1-sin^2y=cos^2y\\\\R=cos^2y\\\\L=R$

$sin(-x)=-sinx\\\\sin^2x+cos^2x=1\to1-sin^2x=cos^2x\\\\(a+b)(a-b)=a^2-b^2$

4 0

2 years ago

Read 2 more answers

Select a composite number to break into factors. Continue

IgorC [24]

I hope this helped! Mark me Brainliest! :) -Raven❤️

3 0

2 years ago

Read 2 more answers