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Marina CMI [18]

1 year ago

12

8. The angle measures of a triangle are shown in the diagram. What is the value of x? A. 20 B. 15. C. 32 D. 40 I WILL GIVE BRAIN

LIEST TO RIGHT ANSWERERR PLS HELPPO AHH

1 answer:

AfilCa [17]1 year ago

7 0

Answer:

D) 40

Step-by-step explanation:

triangles equal to 180 degrees

2x+10+x+50=180

3x+60=180

3x=120

x=40

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Help!! Find missing value for each quadratic function

Svetllana [295]

I'll do the first one to get you started. The answer is -3

=================================================

Explanation:

When x = -1, y = 0 as shown in the first column. The second column says that (x,y) = (0,1) and the third column says (x,y) = (1,0)

We'll use these three points to determine the quadratic function that goes through them all.

The general template we'll use is y = ax^2 + bx + c

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Plug in (x,y) = (0,1). Simplify

y = ax^2 + bx + c

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Plug in (x,y) = (-1,0) and c = 1

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Plug in (x,y) = (1,0), c = 1, and a = b-1

y = ax^2 + bx + c

0 = a(1)^2 + b(1) + 1 ... replace x with 1, y with 0, c with 1

0 = a + b + 1

0 = b-1 + b + 1 ... replace 'a' with b-1

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In summary so far, we found: a = -1, b = 0, c = 1

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The last thing to do is plug x = 2 into this equation and simplify

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Answer:

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We calculate the probability that he pulls out a 3 first and then pulls out a 2 without replacing them.

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