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cricket20 [7]
2 years ago
5

Please help me to solve it​

Mathematics
1 answer:
jarptica [38.1K]2 years ago
5 0

Answer:

4 is b which is equivalent to 4\5

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What is the answer for 2+2?​
disa [49]

Answer:

4

Step-by-step explanation:

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3 years ago
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Heyy! i’ll give brainliest please help.
Murrr4er [49]

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thought i had it but answer is B......

 

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I need help with 15,19,17<br><br> Negative exponents
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2 years ago
1<br>Determine the value of k if g(x)=4x+k is a tangent to f(x)=-x²+8x+20​
tangare [24]

Answer:

k=24

Step-by-step explanation:

The tangent of the function f at x=a, can be found by differentiating f w.r.t. x and then replacing x with a.

f=-x^2+8x+20

Differentiating both sides:

f'=(-x^2+8x+20)'

By sum rule:

f'=(-x^2)'+(8x)'+(20)'

By constant multiple rule:

f'=-(x^2)'+8(x)'+(20)'

By constant rule:

f'=-(x^2)+8(x)'+0

By power rule:

f'=-2x+8

f' at x=a is -2a+8

This is the slope of any tangent line to the curve f.

The slope of g is 4 if you compare it to slope intercept form y=mx+b.

So we gave -2a+8=4.

Subtracr 8 on both sides: -2a=-4

Divide both sides by -2: a=2

The tangent line to the curve at x=2 is y=4x+k.

To tind y we must first know the y-coordinate of the point of tangency.

If x=2, then

f(2)=-(2)^2+8(2)+20=-4+16+20=12+20=32

So the point is (2,32).

g(x)=4x+k and we know g(2)=32.

This gives us:

32=4(2)+k

32=8+k

k=32-8

k=24

6 0
2 years ago
What squared equals 125
OLga [1]

Answer:

The answer is about 11.1803399

Step-by-step explanation:

To find what squared equals 125, you will have to take the square root of 125.

\sqrt{125} ≈ 11.1803399

11.1803399^{2} ≈ 125

4 0
3 years ago
Read 2 more answers
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