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Gala2k [10]
3 years ago
5

Simplify each expression by combining like terms 3x^-1 - 10x^-1

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Answer:

-7/x

Step-by-step explanation:

first, you combine the terms together to get -7x^-1. you cant have negative exponents in the numerator so you move the x^-1 to the denominator. once it move its becomes positive then.

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Plz help me with dis its one question
tatiyna

Answer:

Alix does. See below.

Step-by-step explanation:

Givens

<em><u>Jenny</u></em>

  • b1 = 90 cm
  • b2 = 80 cm
  • height = 23 cm

<em><u>Alex</u></em>

  • b1 = 90 cm
  • b2 = 70 cm
  • height = 27 cm

Formula

For both territories the answer is based on the formula

  • Area = (b1 + b2)*h/2

Solution

<em><u>Jenny</u></em>

  • Area = (90 + 80)23/2
  • Area = 170 * 23 / 2
  • Area = 85 * 23
  • Area = 1955 units.

<em><u>Alex</u></em>

  • Area = (70 + 90)*27/2
  • Area = 160*27 / 2
  • Area = 80* 27
  • Area = 2160

Alix does by 205 cm

7 0
4 years ago
Solve for x in the figure below
fredd [130]

Answer:

x = 35.4

Step-by-step explanation:

Sum of all interior angles in a triangle = 180°

Therefore:

(x + 2)° + (2x + 2)° + (2x - 1)° = 180°

x + 2 + 2x + 2 + 2x - 1 = 180

Collect like terms

x + 2x + 2x + 2 + 2 - 1 = 180

5x + 3 = 180

Subtract 3 from each side

5x + 3 - 3 = 180 - 3

5x = 177

Divide both sides by 5

5x/5 = 177/5

x = 35.4

3 0
3 years ago
A parallelogram has an area of 136.96 square kilometers and a height of 12.8 kilometers. What is the length of the base?
fenix001 [56]

Answer:

the answer is 10.7

Step-by-step explanation:

136.96 \div 12.8

that show give you your answer

5 0
2 years ago
I REALLY NEED HELP ON THIS QUICK ASAP
oksian1 [2.3K]
Is there like any image to see how big are the posts?
8 0
3 years ago
Helppp this is chemistry not math though
Scorpion4ik [409]

Answer:

It is balance she need to use. Answer is B.

7 0
3 years ago
Read 2 more answers
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