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tangare [24]
2 years ago
11

Determine the point(s), if any, at which the graph of the function has a tangent line with the given slope. Function y = x^2 + 2

x Slope m = −8
Mathematics
1 answer:
LuckyWell [14K]2 years ago
7 0

The point at which the graph of the function has a tangent line with the given slope is (-5,15)

<h3>What is a tangent?</h3>

A tangent is a straight line that touches any point on a curve.

Analysis:

slope of the curve x^{2} + 2x is equal to dy/dx = d/dx( x^{2} + 2x) = 2x+2

Which is equal to -8

2x+2 = -8

2x = -8-2

2x = -10

x = -5

substitute x into the equation

y = (-5)^{2} + 2(-5) = 25 - 10 = 15

In conclusion, the point at which the graph of the function has a tangent at -8 is (-5,15)

Learn more about tangent to curves: brainly.com/question/22426360

#SPJ1

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Answer:

10%

Step-by-step explanation:

20%=20/100=0.20

 75$x.0.20=15$

 

 The price when she received a 20% discount was:

 

 75$-15$=60$

 

 Then, the web site applied a 10% service fee to the discounted price, so you have:

 

 10/100=0.10

 75$x0.10=7.5$

 60$+7.5$=67.5$

 

 So, if 75$ is the 100% of the price, what percentage represents 67.5$?

 

 75$--------100%

 67.5$------x

 

 x=67.5 x 100/75

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 Then,

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3 0
3 years ago
Determine the type and number of solutions of −4x2 − 3x + 7 = 0.
Kaylis [27]

Answer:

Step-by-step explanation:

You have to use the discriminant for this. If the quadratic is -4x^2-3x+7, then

a = -4, b = -3, and c = 7. The formula for finding the discriminant is

D=b^2-4ac which comes from the quadratic formula, but without the square root sign. Filling in:

D=(-3)^2-4(-4)(7) which simplifies down to

D = 9 + 112 so

D = 121. This is a perfect square, so the solutions will be 2 real. Just so you know, you will NEVER have a solution like the one offered in the third choice down. If you have one imaginary root, you will ALWAYS have a second by the conjugate rule.

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Step2247 [10]

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Step-by-step explanation:

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Thomas buys a cardboard sheet that is 8 by 12 inches. Let x be the side length of each cutout. Using complete sentences, explain
jasenka [17]

Answer: V = (12in - 2*x)*(8 in - 2*x)*x

Step-by-step explanation:

So we have a rectangular cardboard sheet, and we cut four squares of side length x in each corner so we can make a box.

Remember that for a box of length L, width W and height H, the volume is:

V = L*W*H

In this case, the length initially is 12 inches, but we remove (from each end) x inches of the length, then the length of the box will be:

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And te height of the box will be equal to x, then:

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