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3 years ago

Please click on the photo aboveits difficult for me

Mathematics

2 answers:

LenKa [72]3 years ago

7 0

Answer:

H. 5.89 × 10⁻⁷

Step-by-step explanation:

F and I are not correct since F creates a negative number and I creates a large number.

You have to see how many digits you have to move the decimal point to get from the current number to 5.89 (in scientific notation, <em>there is exactly one digit before the decimal point</em>, regardless of rounding), which you've done, and should've gotten 7 points. So your answer would be H. 5.89 × 10⁻⁷.

Mashutka [201]3 years ago

4 0

Yes I sure can submit it

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Which equation represents an exponential function that passes through the point (2,80)

Anon25 [30]

Answer:

Step-by-step explanation:

The point (2,80) has the input value x = 2.

Substitute x = 2 into each function.

$f(x) = 5 (4^x)\\f(2) = 5(4^2)\\f(2) = 5 *16\\f(2) = 80$

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3 years ago

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3 years ago

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The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches. Men the same

masha68 [24]

Answer: The z-scores for a woman 6 feet tall is 2.96 and the z-scores for a a man 5'10" tall is 0.25.

Step-by-step explanation:

Let x and y area the random variable that represents the heights of women and men.

Given : The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches.

i.e. $\mu_1 = 64$ $\sigma_1=2.7$

Since , $z=\dfrac{x-\mu}{\sigma}$

Then, z-score corresponds to a woman 6 feet tall (i.e. x=72 inches).

[∵ 1 foot = 12 inches , 6 feet = 6(12)=72 inches]

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Men the same age have mean height 69.3 inches with standard deviation 2.8 inches.

i.e. $\mu_2 = 69.3$ $\sigma_2=2.8$

Then, z-score corresponds to a man 5'10" tall (i.e. y =70 inches).

[∵ 1 foot = 12 inches , 5 feet 10 inches= 5(12)+10=70 inches]

$z=\dfrac{70-69.3}{2.8}=0.25$

∴ The z-scores for a woman 6 feet tall is 2.96 and the z-scores for a a man 5'10" tall is 0.25.

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3 years ago

To gather information on customer satisfaction, a researcher randomly selects four store locations and interviews all the custom

Schach [20]

Answer:

This sampling technique is called cluster

Step-by-step explanation:

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

In this question:

The population is divided into groups(by stores), and all elements of the groups(all customers at the stores are sampled), which is the characteristic of a cluster sampling.

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2 years ago

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Softa [21]

Answer:

Step-by-step explanation:

3(2n-8)=5n distribute 3

6n-24=5n combine like terms

-24=-n divide by -1 on both sides

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3 years ago

Please click on the photo aboveits difficult for me​

Please click on the photo aboveits difficult for me