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SpyIntel [72]
3 years ago
15

Two lines intersect at point B, which is also the endpoint of two rays.

Mathematics
1 answer:
monitta3 years ago
6 0

Answer:

G

Step-by-step explanation:

Angle B is a 90 degree angle. It is made up of two complementary angles ,57 and 3x. Using this equation

57 + 3x = 90

We solve for x

3x=33

x=11, then since plug in 11 into 2x and we get 22.

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Find the average rate of change of f ( x ) = 9 x 2 − 7 on the interval [ 2 , a ] . Your answer will be an expression involving a
aleksandrvk [35]

Answer:

9a + 18

Step-by-step explanation:

so the first step is to evaluate the value of f(2).

f(2) = 9(2)^2-7\\f(2)=9(4)-7\\f(2)=36-7\\f(2)=29

Now that we have this value we can use the slope formula (y2 - y1) / (x2 - x1) where y2 is f(a), y1 is 29, x2 is a, and x1 is 2

\frac{f(a)-29}{a-2}\\\\\frac{(9a^2-7)-29}{a-2}\\\frac{9a^2-36}{a-2}

Now from here we can use long division to simplify it further

9a^2/a = 9a\\9a(a-2)=9a^2-18a\\(9a^2-36)-(9a^2-18a)\\18a-36\\\\18a/a=18\\18(a-2)=18a-36\\(18a-36)-(18a-36)\\0\\\\9a+18

8 0
2 years ago
What is the greatest integer that satisfies the inequality 3x-4≤8 ?
Masteriza [31]
<span>3x - 4 ≤ 8
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4 years ago
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6. -√ 2 / 2

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3 years ago
Graph y=\dfrac{2}{7}\,xy= 7 2 ​ xy, equals, start fraction, 2, divided by, 7, end fraction, x.
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Watch this,it might help.
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