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3 years ago

15

If x is 6, then 7x =

1 answer:

Lana71 [14]3 years ago

3 0

I think it's 42 since 7x6=42

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viva [34]

7 and 8 because the square root is 7.874

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2 years ago

Cassidy's goal is to raise more than $75 for charity. She has already raised $6. Now she is selling cupcakes for $3 each to reac

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The first statement is false, the second statement is true :)

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4 years ago

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Captain John Smith earns $3,300 a month in the Air Force. If the Air Force puts 6% into his pension, how much goes into his pens

sdas [7]

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3 years ago

I need help on number 9. I don’t even know how to start

Elan Coil [88]

begin by pulling 2 out of the numerator using the distributive property.

numerator: 2(16x^4 - 25) and now factor

numerator: 2(4x^2 - 5)(4x^2 + 5)

Now go to the denominator. It looks messy but it will break down.

Pull out 4x^2 for the first two terms and 5 for the last 2 terms. Use the distributive property.

denominator: 4x^2(x - 3) - 5(x - 3) now x - 3 is the common term.

denominator: (x - 3)(4x^2 - 5)

Put the two results together.

$\dfrac{2(4x^2- 5)*(4x^2+5)}{(4x^2-5)(x-3)}$

After canceling out 4x^2 - 5 on both the numerator and the denominator, you are left with.

$\dfrac{2(4x^2+5)}{(x-3)}$

5 0

3 years ago

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Which choice is equivalent to the quotient shown here when x is greater than or equal to 0?

Dima020 [189]

Answer: OPTION C

Step-by-step explanation:

Remember that:

$\sqrt[n]{a^n}=a$

And the Product of powers property establishes that:

$a^m*a^n=a^{(mn)}$

Rewrite the expression:

$\frac{\sqrt{18x} }{\sqrt{32} }$

Descompose 18 and 32 into their prime factors:

$18=2*3*3=2*3^2\\32=2*2*2*2*2=2^5=2^4*2$

Substitute into the expression, then:

$\frac{\sqrt{(2*3^2)x} }{\sqrt{2^4*2} }$

Finally,simplifying, you get:

$\frac{3\sqrt{(2)x} }{2^2\sqrt{2} }=\frac{3\sqrt{2x}}{4\sqrt{2}}=\frac{(3)(\sqrt{x})(\sqrt{2})}{(4)(\sqrt{2})}= \frac{3\sqrt{x}}{4}$

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3 years ago