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2 years ago

6

7. The cost of 2 notebooks and 4 folders is

1 answer:

KATRIN_1 [288]2 years ago

5 0

Answer: B (The cost of a notebook is $0.75, and the cost of a folder is $0.25.)

Step-by-step explanation:

No need for explanation. i know i’m right!!

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Factor completely 9r^3-72r^2

PtichkaEL [24]

Answer:

9r²(r - 8)

Step-by-step explanation:

Step 1: Write expression

9r³ - 72r²

Step 2: Factor out 9

9(r³ - 8r²)

Step 3: Factor out r²

9r²(r - 8)

6 0

2 years ago

What is the domain of f(x) = √x – 4 over the set of real numbers?

nikklg [1K]

Answer:

<u>(2) x </u> $\geq \\$ <u> 4</u>

Step-by-step explanation:

Given the sqrt(x), x $\geq \\$ zero

So, given sqrt(x -4), x -4 $\geq \\$ 0

Now solve for x

x - 4 $\geq \\$ 0

x $\geq \\$ 4

6 0

2 years ago

Leno4ka [110]

5 it's not a factor of 2058

4 0

2 years ago

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1. Which equation should be used to find the area of the triangle below? *

77julia77 [94]

Answer:

See Explanation

Step-by-step explanation:

Required

Expression for area of triangle

This is calculated using

$Area = \frac{1}{2} * base * height$

Assume that:

$base = 5cm; height = 2cm$

The equation becomes

$Area = \frac{1}{2} * 5* 2$

8 0

2 years ago

How would the expression x^3-8 be written using difference of cubes

ludmilkaskok [199]

we can use formula

$a^3-b^3=(a-b)(a^2+ab+b^2)$

we can compare

we get

a=x

b=2

now, we can plug that in formula

and we get

$x^3-2^3=(x-2)(x^2+2x+2^2)$

now, we can simplify it

$x^3-8=(x-2)(x^2+2x+4)$ ...........Answer

4 0

3 years ago

Read 2 more answers