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neonofarm [45]
3 years ago
13

Evaluate the expression below when x = -2. x2 − 8 _____ x + 6

Mathematics
1 answer:
Paraphin [41]3 years ago
7 0
-4-8 -12
--------= -------= -3
-2+6 4
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0.9(3÷2.25− 1/8 (1 2/3 1/9 ))− 4/7 ÷0.8. i would like to know what this equals if you could help that would be great.
mario62 [17]

Answer:

781/1680

Step-by-step explanation:

Don't you have a calculator?

I assume that by (1 2/3 1/9), you mean (1+2/3)*(1/9)

Assuming that you put all necessary parentheses:

781/1680, approx. 0.4648809523809524



7 0
4 years ago
What is the value of the rational expression below when x is equal to 4? x-12/x-8
Firlakuza [10]

Answer:

When x=4 we get the value of the given expression is

\frac{x-12}{x-8}=2

Step-by-step explanation:

Given rational expression is \frac{x-12}{x-8}

To find the value of the given rational expression \frac{x-12}{x-8}

when x is equal to 4 :

That is the value of the given rational expression \frac{x-12}{x-8}

when x=4 :

\frac{x-12}{x-8}

Put x=4 in the above rational expression we get

\frac{4-12}{4-8}

=\frac{-8}{-4}

=\frac{8}{4}

=2

Therefore  when x=4 we get the value of the given expression is

\frac{x-12}{x-8}=2

7 0
4 years ago
I need the the unknown angle measures
Valentin [98]

Answer: Mark brainliest if satisfied

m<B=72 degrees

m<C= 36 degrees

Step-by-step explanation:

m<B is congruent to m<A

72 times 2 equals 144

180 minus 144 equals 36

6 0
3 years ago
I NEED HELP ASAP!!!! I DONT UNDERSTAND HOW TO DO This!! Please do step by ste and tell me where it goes thank you
MariettaO [177]

Answer:

Step-by-step explanation:

A: 5600 meters per hour

B: 700 meters per 1/6 hour

C: 4200 meters per hour

I cant see the final question

5 0
3 years ago
Read 2 more answers
What is the product of 3/8 and 7/8
Marysya12 [62]

Answer:

D. it is greater than 1.

Step-by-step explanation:

3/8 +7/8 = 1 2/8

8 0
3 years ago
Read 2 more answers
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