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Darya [45]
3 years ago
7

BRAINLIEST!!!!!!BRAINLIEST!!!!BRAINLIEST!!!!BRAINLIEST!!!BRAINLIEST!!!!!BRAINLIEST!!!!BRAINLIEST!!!!BRAINLIEST !!!!!!!

Mathematics
2 answers:
faust18 [17]3 years ago
8 0

Answer:

answer C

Step-by-step explanation:

3x^2-4x-8 + (6x^2+2x-3) = 3x^2-4x-8+6x^2+2x-3=9x^2-2x-11

so the correct answer is the C

hope this helps

Airida [17]3 years ago
8 0

Answer:

C.

Step-by-step explanation:

= 3x²-4x-8+6x²+2x-3

= 3x²+6x²-4x+2x-8-3

= 9x²-2x-11

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Differentiation <br>Find the formula to find the gradient ​
Alla [95]

Answer:

x + 4/3x^3

Step-by-step explanation:

y=1/2x^2-2/3x^-2

dy/dx=1/2(2x)-2/3(-2x^-3)

=x+4/3 x^-3

=x+4/3x^3

6 0
3 years ago
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ivolga24 [154]

Step-by-step explanation:

it ia 76.92 is the percentage for 10/13

8 0
3 years ago
Rebecca gets a part time job in order to pay for her cheerleading uniform. her employer tells her that she will be earning $7.25
qwelly [4]

<u>Answer:</u>

$1972

<u>Step-by-step explanation:</u>

We are given that Rebecca will earn $7.25 per hour for her job and she is promised to have 34 hour workdays per week.

We are to find the minimum amount of money she will gross in eight weeks.

Number of hours of work in 8 weeks = 34 \times 8 = 272 hours

Minimum amount of money she will earn in 8 weeks = 272 \times 7.25 = $1972

4 0
3 years ago
Denzel had $88. He spent $13 on a baseball cap. Then he earned $22 babysitting.
djverab [1.8K]
97 is your answer

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5 0
3 years ago
The perimeter of an equilateral triangle is 63 inches. If the length pf each side is (4x-3), write an equation and find the valu
Nady [450]

Answer:

x = 6

Step-by-step explanation:

Givens

There are 3 sides. All are equal to (4x - 3)

Their sum = 63

Formula

3(4x - 3) = 63

Solution

  • 3(4x - 3) = 63            Divide by 3
  • 12x - 9 = 63               Add 9 to both sides
  • 12x = 63 + 9    
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  • x = 72/12

x = 6                          Answer  

7 0
3 years ago
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