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3 years ago

Find the interval(s) on which the function is increasing.

Mathematics

2 answers:

Tatiana [17]3 years ago

4 0

Answer:

II (THE Second one )

Step-by-step explanation:

Because when you substitute X by (-2)

you will get :

y=(-2)^2 - 6(-2) - 16 = Zero

So, -2 is not including in the interval .

jarptica [38.1K]3 years ago

4 0

The second one.......

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If f (x) = x + 7 and g (x) = StartFraction 1 Over x minus 13 EndFraction, what is the domain of (f circle g) (x)?

Rashid [163]

Answer:

R-{13}

Step-by-step explanation:

We are given that

$f(x)=x+7$

$g(x)=\frac{1}{x-13}$

We have to find the domain of fog(x).

$fog(x)=f(g(x))$

$fog(x)=f(\frac{1}{x-13})$

$fog(x)=\frac{1}{x-13}+7=\frac{1+7x-91}{x-13}=\frac{7x-90}{x-13}$

Domain of f(x)=R

Because it is linear function.

Domain of g(x)=R-{13}

Because the g(x) is not defined at x=13

fog(x) is not defined at x=13

Therefore, domain of fog(x)=R-{13}

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3 years ago

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Lerok [7]

Answer:

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3 years ago

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Find the value of x that makes the triangle a right triangle.

gogolik [260]

Answer:

Hi, I don't see an attachment with your question. But without any attachments to refer to. You use Pyrhagoras Theorem to solve this question.

Step-by-step explanation:

A^2 (Short side) + B^2 (Short side) = C^2 (Long side)

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2 years ago

Mikaela placed a frame around a print that measures 10 inches by 10 inches. The area of just the frame itself is 69 square inche

olchik [2.2K]

Answer:

1.5 in

Step-by-step explanation:

Let x be the width of the frame.

Side of print=10 in

Area of frame=69 square in

We have to find the width of the frame.

Side of frame=10+x+x=10+2x

Area of square= $(side)^2$

By using the formula

Area of print= $10\times 10=100in^2$

Area of frame with print= $(10+2x)^2$

Area of frame=Area of frame with print-Area of print

$69=(10+2x)^2-100$

$(10+2x)^2=69+100=169$

$(10+2x)=\sqrt{169}=\pm 13$

$10+2x=13$

Because Side is always positive.

$2x=13-10=3$

$x=\frac{3}{2}=1.5$

Hence, width of frame=1.5 in

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3 years ago

The volume of a cylinder is 196pi in. cubed and the height of the cylinder is 1 in. What is the radius of the cylinder?

Free_Kalibri [48]

Answer:14in

Step-by-step explanation:

volume(v)=196π

Height(h)=1

Radius=√(v ➗ π x h)

Radius=√(196π ➗ πx1)

Radius=√(196)

Radius=14in

6 0

3 years ago