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2 years ago

15

If A= 3x^2+5x-6 and B = -2x^2-6x+7 then A-B equals

1 answer:

Ber [7]2 years ago

5 0

Answer:

A-B=x^2-x+1

Step-by-step explanation:

A-B=3x^2+5x-6+(-2x^2-6x+7)

=3x^2+5x-6-2x^2-6x+7

=x^2-x+1

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Which choice is equivalent to the product below when x>0?

V125BC [204]

Answer:

D

Step-by-step explanation:

Using the rule of radicals

$\sqrt{\frac{a}{b} }$ = $\frac{\sqrt{a} }{\sqrt{b} }$

$\sqrt{a\\}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Given

$\sqrt{\frac{6}{x} }$ × $\sqrt{\frac{x^2}{24} }$

= $\frac{\sqrt{6} }{\sqrt{x} }$ × $\frac{x^2}{24}$

= $\frac{\sqrt{6} }{\sqrt{x} }$ × $\frac{x}{2 \sqrt{6\\} }$

Cancel $\sqrt{6}$ on numerator/ denominator

= $\frac{1}{\sqrt{x} }$ × $\frac{x}{2\\}$

= $\frac{1}{\sqrt{x} }$ × $\frac{(\sqrt{x})^2 }{2}$

Cancel $\sqrt{x}$ on numerator/ denominator, leaving

= $\frac{\sqrt{x} }{2}$ → D

4 0

3 years ago

Consider the expression 21 - + ).

kogti [31]

Subtraction is. Pemdas. Whichever comes first left to right is what you should do. In this case subtraction comes before addition, therefore subtraction is the right route

6 0

1 year ago

Rewrite logt (96) – logt (8) in compact form.<br> Hint: Use the quotient rule in reverse

S_A_V [24]

log( 96 ) - log( 8 ) =

log( 96 ÷ 8 ) =

log( 12 )

3 0

3 years ago

−<br> 1<br> 4<br> (<br> −<br> 8<br> x<br> +<br> 12<br> y

lawyer [7]

Answer:

I am assuming the question is

-14(-8×12y)

112-168y

Step-by-step explanation:

you have to expand the brackets first.

then you can't do anything after expanding the brackets because they are not like terms

hope this was helpful

8 0

2 years ago

A presidential candidate plans to begin her campaign by visiting the capitals in 44 of 4747 states. What is the probability that

butalik [34]

we are given

A presidential candidate plans to begin her campaign by visiting the capitals in 4 of 47 states

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$=47C_4$

$=\frac{47!}{4!(47-4)!}$

$=178365$

now, we can find probability

so, the probability is

$=\frac{1}{178365}$ ..............Answer

6 0

3 years ago

Read 2 more answers