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2 years ago

Which BEST shows where this function is only decreasing?

Mathematics

1 answer:

Setler79 [48]2 years ago

4 0

The answer is definitely A because that’s the only place the graph is decreasing

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What is 0.31 written as a percent?

aalyn [17]

It is 31%.

To explain, you have to just have to multiply 0.31 by 100, and then add a percentage sign.

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3 years ago

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if a second function is defined by the formula g(x)=2x-7/3, then what is the value of g(f(1))? show the work that leads to your

nydimaria [60]

YOU NEED THE VALUE OF f(1), OR THERE IS MORE MERIT TO THE QUESTION, BUT HERE IS HOW IT WOULD BE BASED ON THE MERITS GIVEN

$g(x) = 2x - \frac{7}{3} \\ g(f(1)) = 2(f(1)) - \frac{7}{3} \\ g(f(1)) = (2 \times f(1)) - ( \frac{7}{3} )$

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4 years ago

What is the measure of angle ABC in the circle shown in the picture?

Fynjy0 [20]

Answer:

45°

Step-by-step explanation:

I think you meant m<ACB, and from what I see here, I took half of 90°, which is 45°.

3 0

3 years ago

Find the zeros of f(x) = -x^2 + 4x - 3 by using a table and a graph.

ludmilkaskok [199]

1) Enter the missing numeral of the answer 1, 3. Use a number only.
2) f(x) = x^2 - 5x - 6 can be written as f(x) = x^2 - 5x - 6 = (x-1) (x+6)
the zeros are 1 and 6, and the smallest zero is 1,
3) g(x) = x^2 - 8x =g(x) = x(x - 8), so the zeros are 0 and 8, the smallest zero is 0
4) f(x) = x^2 - 7x + 6 can be written as f(x) = x^2 - 7x + 6 = (x-1) (x-6), the zeros are 1 and -6, and the smallest zero is 1
5) g(x) = x^2- 6x - 16 can be written as g(x) = x^2- 6x - 16 = (x+2) (x-8)
the zeros are -2 and 8, the smallest zero is -2

7 0

3 years ago

In Pennsylvania the average IQ score is 101.5 The variable is normally distributed and the population standard deviation is know

elena-14-01-66 [18.8K]

Answer:

P-value = 0.0368

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 101.5

Sample mean, $\bar{x}$ = 106.4

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 15

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 101.5\\H_A: \mu> 101.5$

We use One-tailed(right) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{106.4 - 101.5}{\frac{15}{\sqrt{30}} } = 1.789$

Now, $z_{critical} \text{ at 0.05 level of significance } = 1.64$

Since,

$z_{stat} > z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, students in Pennsylvania have an IQ that is significantly greater than the state average.

P-value can be calculated with the standard normal table.

P-value = 0.0368

P-value is lower than the significance level.

4 0

3 years ago