MATHEMATICS HIGH SCHOOL

Solve for h.

–2(h + 8.4) + –1.4 = –2.8

h =

Answers

Answer 1
Answer:

Answer :

  • h = -7.7

Step-by-step explanation:

Solve for h.

  • -2(h + 8.4) + (-1.4) = -2.8
  • -2(h + 8.4) - 1.4 = -2.8
  • -2h - 16.8 - 1.4 = -2.8

Combininglike terms,

  • -2h -18.2 = -2.8

Add 18.2 on both sides,

  • -2h -18.2 + 18.2 = -2.8 + 18.2
  • -2h = 15.4

Divide both sides by 2,

  • h = -7.7

Henceforth the value of h is -7.7
Answer 2
Answer:

Answer:   i belive your awnser is –2(h + 8.4) + –1.4 = –2.8 is h = -7.7.

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Write a power that has a value greater than 140 and less than 145.

Answers

Answer:

12^(2)

Step-by-step explanation:

To find: a power that has a value greater than 140 and less than 145

Solution:

Take x=12^(2)

Here,

12^(2)=144 and 140<144<145

That is 140<x<145

Therefore,

12^(2) has a value greater than 140 and less than 145.

What is 0.25 kilometers expressed in centimeters?a. 25000 cm
b. 250 cm
c. 0.000025 cm
d. 2500 cm

Answers

Answer:

The answer is A.25000

Step-by-step explanation:

In order for kilometers to centimeters you need to mover the decimal place to the right 5 times. When you do that 0.25 becomes 25000.

If x3 = -27, then what is x?
A) -9
B) -3
C) 3
D) 9

Answers

The answer is -3

Factor using difference of cubes and set each factor equal to  0.

x=3±3i√3/2

Answer: -3

Step-by-step explanation:

PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer:

1. x = 66

2. C

3. C. 2000

Step-by-step explanation:

1. The first question is x = 66 because to get rid on the fraction you multiply both sides by 4. This leaves you with x + 2 = 68 (minus 2 on both sides) this gives you x = 66.

2. C. Commutative

3. 2000

Plug in

125 = (5)(.0125)(2000)

125 = 125

Hope this helps ya!!

Can someone help me? Files attached!

What answer choices go to what figure? :D

Answers

Since the center is considered the corner that they both share, here are the answers figure a goes with the first, figure b goes with the last, figure c goes with the second, and figure d goes with the third. Hope this helps.

Simplify the expression. (8 + 7a) + 4 7a

Answers

For this one I'm going to assume that 4 7a means 4 * 7a...

(8 + 7a) + 4 * 7a =
8 + 7a + 28a =
8 + 35a

If I read it wrong and 4 7a is actually 47a then...

(8 + 7a) + 47a =
8 + 54a =
2(4 + 27a)
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