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Lubov Fominskaja [6]
3 years ago
13

X^2+20x+c find the value of c that makes a perfect square trinomial

Mathematics
1 answer:
ollegr [7]3 years ago
3 0

Answer:

This means c=100. The factored form is (x+10)^2.

Step-by-step explanation:

A perfect square is a trinomial that factors into the form (x+a)^2. To find the value of C to finish the perfect square divide 20 by 2 and square it.

20/2 = 10

10*10=100

This means c=100. The factored form is (x+10)^2.

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Sati [7]

Answer:

See below

Step-by-step explanation:

Given there are 56 M&M's:

  • Expected Value of Blue = 56(0.24) = 13.44
  • Expected Value of Brown = 56(0.14) = 7.84
  • Expected Value of Green = 56(0.16) = 8.96
  • Expected Value of Orange = 56(0.20) = 11.20
  • Expected Value of Red = 56(0.13) = 7.28
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Remember to use np to calculate expected value! This will especially be helpful if you are conducting a chi-squared test of independence.

6 0
2 years ago
Kirk's average driving speed is 7 kilometers per hour faster than Thor's. In the same length of time it takes Kirk to drive 450
alexandr402 [8]

Answer:

x = 816 kilometers per hour.

Step-by-step explanation:

Given the following data;

Distance traveled by Kirk = 450km

Distance traveled by Thor = 408 km

Let the average driving speed of Thor be x.

Translating the word problem into an algebraic equation;

k = x + 6

We know that the time taken to cover a distance by an object with speed is given by the formula;

Time = distance/speed

Substituting into the equation, we have;

408/x = 405/x + 6

Cross-multiplying, we have;

408*(x + 6) = 405*x

408x + 2448 = 405x

408x - 405x = 2448

3x = 2448

x = 2448/3

x = 816 kilometers per hour.

3 0
3 years ago
Line A is perpendicular to Line B.Line B is perpendicular to Line C.Line C is perpendicular Line D.What can be said about Lines
butalik [34]

We can say that lines A and D are <em>perpendicular</em>.

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vitfil [10]

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2 years ago
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Nataly_w [17]

Answer:

m=22

Step-by-step explanation:

i am very very shmart

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2 years ago
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