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chubhunter [2.5K]
3 years ago
5

Calculate Zz = 81z = 30z = 15z = 20​choose the only correct answer

Mathematics
2 answers:
777dan777 [17]3 years ago
4 0
Correct Answer - z=15 :)
klemol [59]3 years ago
3 0
Z = 15 ( Use Pitago’ Theorem)
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A quadratic equation is shown: x2 + 18x + 76 = 0 Which of the following is the first correct step to write the above equation in
tia_tia [17]

Answer:

  x^2 + 18x + 76 + 5 = 0 + 5

Step-by-step explanation:

The first step is to determine the constant that is needed to be able to write the expression in the desired form. That constant is the square of half the x-term coefficient: (18/2)^2 = 9^2 = 81.

The constant that is present is 76, which is 5 fewer than the needed constant, so the "first step" is to add 5 to both sides of the equation:

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Then the next step would be to write the left side as a square:

  (x +9)^2 = 5 . . . . . . . p = -9; q= 5

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3 years ago
Triangle weighs 3 grams Circle weighs 6 grams. Write an equation to represent each hanger. Let x represent the pentagon.
klasskru [66]

Answer:

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Step-by-step explanation:

Assume the weight of the square is x.

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Equation therefore is:

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5x - x = 3 + 18 - 6

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x =  3.75 g

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2 years ago
What is the imaginary part of the following complex number -31?
Alex787 [66]

Answer:

Step-by-step explanation:

-31 + 0i

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4 0
3 years ago
19/5 as a mixed number
Feliz [49]
The answer would be 3 and 4 over 5
8 0
3 years ago
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ra1l [238]

Answer:

They traveled 2.71 in 1 hr

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97.8 divided by 1.5 then multiply that by 1hr

6 0
3 years ago
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