All categories

3 years ago

Factor each expression

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

8 0

A) 4 (x+5)
B) 6 (x+9)

You might be interested in

Need help kinda stuck on this one!

irinina [24]

It goes zero positive negative. that is from left to right

6 0

3 years ago

17. A hemisphere of lead of radius 7 cm is cast into a right circular cone of height 49 cm. Find

Pavlova-9 [17]

Answer:

$r = 3.74cm$

Step-by-step explanation:

Given

Hemisphere

$Radius = 7cm$

Cone

$Height = 49m$

Required

Determine the radius of the cone

First, we calculate the volume (V1) of the hemisphere.

$V_1 = \frac{2}{3}\pi r^3$

Substitute 7 for r

$V_1 = \frac{2}{3}\pi * 7^3$

$V_1 = \frac{2}{3}\pi * 343$

$V_1 = \frac{686}{3}\pi$

Volume (V2) of a cone is:

$V_2 = \frac{1}{3}\pi r^2h$

Because the lead is cast into a cone, then they have the same volume.

So, we have:

$\frac{686}{3}\pi = \frac{1}{3}\pi r^2h$

$686 = r^2h$

Substitute 49 for h

$686 = r^2 * 49$

Divide both sides by 49

$r^2 = \frac{686}{49}$

$r^2 = 14$

$r = \sqrt{14$

$r = 3.74cm$

<em>Hence, the radius of the cone is 3.74cm</em>

5 0

3 years ago

-1.96321 and - Square root is five

Natalija [7]

The above is a simple math problem and the answer to x which is the unknown is -6.5 approximately.

<h3>What is the calculation for the above answer?</h3>

First, lets rewrite the word problem:

-1.96321 and - √(x) = 5

Note that "and" is also multiplication in math.

Hence,

-1.96321 * - √(x) = 5

- √(x) = 5/-1.96321

-x = (5/-1.96321)²

- x = 6.48644131993

x = - 6.48644131993

x $\approx$ -6.5

Learn more about simple math problems:

brainly.com/question/251701
#SPJ1

7 0

2 years ago

Find the missing number:<br> QUICKLY PLEASE

MissTica

Missing value is Decreased by 20%

Step-by-step explanation:

We need to find the missing term.

As we can see from the figure we go from Decreased 10% and then decreased 10% to reach the final goal.

If we directly go from starting point to end point the total will be decreased by 20% as (10%+10%= 20%)

So, Missing value is Decreased by 20%

6 0

3 years ago

Jennifer belongs to a gym that requires a monthly membership fee of $60 plus an additional $15 fee for each yoga class she atten

Gnesinka [82]

Answer To The Question

C. y=15x+60

4 0

3 years ago