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KiRa [710]
2 years ago
7

Is this right and plz help

Mathematics
1 answer:
FrozenT [24]2 years ago
8 0
Number 6 and 7 are incorrect and I can't read 1/2/3

for 6
7/10 would be 70%
for 7
3 2/5 would be 3.40 not 3.25
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What is the additive inverse of the polynomial? -7y^2+x^2y-3xy-7x^2
il63 [147K]

Answer:

Additive inverse is  (7y² - x²y + 3xy + 7x²).

Step-by-step explanation:

Let the additive inverse of the given polynomial be Y.

Therefore as per definition of additive inverse of any polynomial the addition of a polynomial and additive inverse of any polynomial is always zero.

So Polynomial + additive inverse polynomial = 0

(-7y² + x²y - 3xy - 7x²) + Y = 0

Y = -(-7y² + x²y - 3xy - 7x²) = (7y² - x²y + 3xy + 7x²)

So the additive inverse of the polynomial will be (7y² - x²y + 3xy + 7x²).

6 0
3 years ago
Help!!! Find the measure of the arc or angle indicated.
Serhud [2]

Answer:

  • 77°

Step-by-step explanation:

  • m∠QDC = 1/2(mQB + mBC)
  • 5x + 17= 1/2( 4x - 6 + 9x + 4)
  • 10x + 34 = 13x - 2
  • 13x - 10x = 34 + 2
  • 3x = 36
  • x = 12

m∠QDC = 5*12 + 17 = 77

4 0
2 years ago
What is 4 1/2 plus 6 2/5
ANEK [815]

Answer:

10.9

Step-by-step explanation:

4 1/2 plus 6 2/5=10.9

8 0
3 years ago
Read 2 more answers
Four students spoke to the Home and School parents for a total of 2/3 hour. Each student spoke for the same amount of time. How
xeze [42]

creo que la respuesta el 10 minutos, porque dice "horas" pero no dice a cuantas horas equivale :)      espero que te aya adudado auque sea un poquito

8 0
2 years ago
Use the formula for volume = ℎ to find the<br> volume of the rectangular prism shown.
Sedaia [141]

Answer: 56 / 729

Step-by-step explanation: (4 * 2 * 7) / (9^3)

3 0
2 years ago
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