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3 years ago

Bill had a $7 coupon for the purchase of any item. He bought a dvd recorder that was on sale forlu

Mathematics

1 answer:

IgorC [24]3 years ago

6 0

Answer:

5 maybe

Step-by-step explanation:

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A container in the shape of a cone has a volume of 40 cubic units. Its base has an area of 15 square units. What is the height o

amm1812

Answer:

h = 2,67 units of length

Step-by-step explanation:

Volume of a cone is

V(c) = 1/3*π*r²

Where π*r² is area of the base

we know V(c) = 40 cubit units, and area of the base 15 square units, then

V(c) = Area of the base * h (height of the cone )

V(c) = 15 * h

h = V(c) / 15 ⇒ h = 40 / 15 ⇒ h = 2,67 units of length

4 0

3 years ago

Gina Needs To Pack 130 Pens, 50 Pencils And 20 Erasers Into Identical Gift Bags So That Each Item Is Equally Distributed Among T

PolarNik [594]

Answer:

Step-by-step explanation:

I think the best way is to split up the erasers before you do anything. That would mean there were 20 gift bags in all

If you did that, then each gift bag would contain 2 pencils with 10 left over.

Further 130 pens would divide up into 6 pens in each gift bag with 10 pens left over.

6 0

3 years ago

1. 100= 125x^2 find x using logarithms

Aleksandr [31]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What is the factored form of the expression x^2 + 3x-4?

Leona [35]

Answer:

(x-4)(x-4)

Step-by-step explanation:

Because the factors of 16 that add up to -8 can be -4 and -4.
Let's plug it in...
<em>16 - 32 + 16 = 0

It works!!!</em>

ANswer is (x-4)(x-4)

7 0

2 years ago

Read 2 more answers

What is the height of a pyramid (with a square base) whose side length is 12 cm and its slant

Bingel [31]

We have been given that side length of pyramid the square base is 12 cm and its slant height is 10 cm. We are asked to find the height of the pyramid.

We will use slant height of a pyramid formula to solve our given problem.

$s=\sqrt{h^2+\frac{1}{4}a^2}$ ,where,

s = Slant height,

h = Height,

a = Each side of square base.

Upon substituting our given values in above formula, we will get:

$10=\sqrt{h^2+\frac{1}{4}\cdot 12^2}$

$10=\sqrt{h^2+\frac{1}{4}\cdot 144}$

$10=\sqrt{h^2+36}$

Switch sides:

$\sqrt{h^2+36}=10$

Let us square both sides:

$(\sqrt{h^2+36})^2=10^2$

$h^2+36=100$

$h^2+36-36=100-36$

$h^2=64$

Now we will take positive square root of both sides.

$\sqrt{h^2}=\sqrt{64}$

$h=8$

Therefore, the height of the pyramid is 8 cm and option 'b' is the correct choice.

7 0

3 years ago