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2 years ago

Simplify the following expression: 21(x-4)+2 A- 21x - 2 B- 107x C- 21x-82 D- 27x

Mathematics

1 answer:

stealth61 [152]2 years ago

6 0

It's C I'm taking the test right now.

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Factor the expression x^4 -1 using the polynomial identify x^2-y^2)=(x-y)(x+y)

Orlov [11]

Answer:

(x - 1)(x + 1)(x² + 1)

Step-by-step explanation:

Step 1: Factor Difference of Squares

(x² - 1)(x² + 1)

Step 2: Factor Difference of Squares for non-complex binomial root

(x - 1)(x + 1)(x² + 1)

And we have our answer!

3 0

3 years ago

Find the volume h=12cm r=5cm

Goshia [24]

If this was a cone, the volume would be 314.16.

You would just put in the radius and height in the cone volume formula which is πr²h 1/3

If this is a cylinder then the volume would be 942.48

Put in the radius and height in the cylinder volume formula which is πr²h

7 0

2 years ago

Mr butterworth baked a cake in the shape of a cylinder the cake had a diameter of 9 in and a height of 5 in. He spread chocolate

Luden [163]

So, we need to find { curved surface area[pi*d*h] + top area[pi*(d^2)/4] }

just
substitute.

7 0

2 years ago

Read 2 more answers

How do u do (number 30)... please list step by step...

andrezito [222]

Answer:

the screen is really blurry sorry bout that

Step-by-step explanation:

3 0

2 years ago

Please Help Me Asap I Need Units Too

Lina20 [59]

Hello and Good Morning/Afternoon

Let's take this problem step by step:

To find the rate of change is essentially like finding a line's slope:

⇒ the x-values are the number of sodas

⇒ the y-values are the total costs

⇒ choose two sets of coordinates and find the slope

Let's put that into action

Choose any two points

⇒ (24, 18)

⇒ (28, 21)

Calculate Slope

$Rate_.of_.change = \frac{21-18}{28-24} =\frac{3}{4}$

Since the rate of change is total cost over number of sodas

⇒ unit is 'total cost/number of sodas'

Answer: 3/4 total cost/number of sodas

Hope that helps!

#LearnwithBrainly

3 0

1 year ago