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3 years ago

Find x ÷ y, if x = 3 and y = 3 . Express your answer in simplest form.

Mathematics

1 answer:

lord [1]3 years ago

8 0

Answer:

Step-by-step explanation:

3/3=1

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By definition, (fog)(x) = f(g(x))So if g(2) = 3 and f(3) = 16, then (fog)(2) =

marusya05 [52]

Answer:

$(f\circ g)(2)=16$

Step-by-step explanation:

By definition composite function would be:

$(f\circ g)(x)=f(g(x))$

Then, if g(2)=3 and f(3)=16, therefore for f(g(x)):

$\begin{gathered} (f\circ g)(x)=f(g(2))=f(3) \\ \text{Hence,} \\ (f\circ g)(2)=16 \end{gathered}$

6 0

1 year ago

A business major wants to determine whether the variation in advertising costs of hair salons is different from the variation in

olchik [2.2K]

Answer:

Test value = 3.49

Step-by-step explanation:

We are given the following in the question:

$S_1 = \$ 23, n_1 = 12\\S_2 = \$ 43, n_2 = 8$

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \sigma_1^2 = \sigma_2^2\\H_A: \sigma_1^2 \neq \sigma_2^2$

We use F-test to determine the difference in variation between the two samples.

Formula:

$F_{stat} = \displaystyle\frac{S_2^2}{S_1^2}\\\\(As ~S_2 > S_1)$

Putting all the values, we have

$F_{stat} = \displaystyle\frac{1849}{529} = 3.49$

Now, $F_{critical} \text{ at 0.05 level of significance, degree of freedom(8-1,12-1)} = 3.01$

Comparison:

$F_{stat} > F_{critical}$

We reject the null hypothesis and accept the alternate hypothesis.

Thus, there is variation in advertising cost of salon and the advertising cost of nails.

8 0

3 years ago

Please answer this i'll give brainliest

solong [7]

Answer:

It is B you are correct

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

A cylindrical oil tank with a radius of 5 meters holds 1,000 cubic meters of oil. What is the approximate height of the tank? Us

antoniya [11.8K]

Hope this helps you.

8 0

3 years ago

Area of a circle with a diameter of 6

Marina86 [1]

The area of the circle is 28.26

<u>Step-by-step explanation:</u>

Given that,

The diameter of the circle = 6

The formula to find the area of the circle is given by,

Area of the circle = πr²

where,

r is the radius of the circle
π has the default value of 3.14

The steps to find the area of a circle is to square the radius or multiply it by itself. Then multiply the squared radius by 3.14 to get the area.

Now, to find the radius = diameter /2

Radius = 6/2

r = 3

Substitute r = 3 in the area formula,

Area of circle = (3.14) × (3)²

⇒ 3.14 × 9

⇒ 28.26

Therefore, the area of the circle is 28.26

8 0

4 years ago