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Arturiano [62]
3 years ago
12

Please help!!!!! Really need help it’s for final exam

Mathematics
2 answers:
allochka39001 [22]3 years ago
8 0

Answer:

you are correct

a no. is correct

max2010maxim [7]3 years ago
7 0

Answer:

  • C. x < -1 or 1 < x < 9/5

Step-by-step explanation:

  • 2/(x - 1) > 7/(x + 1)
  • [7(x - 1) - 2(x + 1)]/(x - 1)(x + 1) < 0
  • (7x - 7 - 2x - 2) / (x - 1)(x + 1) < 0
  • (5x - 9) / (x - 1)(x + 1) < 0

<u>Zero's in the ascending order:</u>

  • x = -1, x = 1, x = 9/5

<u>Negative intervals:</u>

  • x < -1, 1 < x < 9/5

Correct choice is C

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Ralph and Waldo start in towns that are 70 miles apart and travel in opposite directions for 4 hours.
Lina20 [59]

Answer:

Step-by-step explanation:

Let Waldo's speed = W

Let Ralph's speed = W + 15

A

Waldo's distance = speed * Time

Time = 4 hours.

Speed = w

distance = 4 * w

B

Ralph's speed is W + 15. It's not clear if you need a number. We'll get around to that later.

C

Ralph traveled  4*(W + 15)

D

4w + 70 + 4(W + 15) = d

You really can't get a definite answer to these questions. Even if you knew whether they were heading away from each other or towards each other it wouldn't help.

6 0
3 years ago
Multiply or divide as indicated p^a*p^-3*p^2
Stella [2.4K]

Answer:

p^(a-1)

Step-by-step explanation:

The simplified expression can be seen in the picture attached below

As the factors have the same base, we just need to add or substract the exponents

p^(a-3+2) = p^(a-1)

8 0
3 years ago
16. Solve 7n=42<br> 06<br> O n = 6<br> n = 7<br> O 7
Masteriza [31]

Answer:

6

Step-by-step explanation:

7n=42

n=42/7

n=6

7 0
2 years ago
What is -18 + (-45) + 12
qaws [65]
The answer is -51, hope this helps
5 0
3 years ago
Read 2 more answers
Which is the highest value? 1/100, 1/400,1/500
NNADVOKAT [17]
1/100, 1/400, 1/500

Because the numerators are the same, we just need to compare the denominators.

100< 400< 500
⇒ 1/100 > 1/400 > 1/500

Therefore, the highest value is 1/100.

Hope this helps.


3 0
3 years ago
Read 2 more answers
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