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Olenka [21]
3 years ago
11

Calculate 9.7^3 + (5.6 – 0.84)^2, correct to 3 significant figures.​

Mathematics
1 answer:
disa [49]3 years ago
8 0

Answer:

935

Step-by-step explanation:

When you plug it straight into the calculator you get 935.3306

For three significant figures you would round it to 935.

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A pair of running shoes cost 60.00. The sales tax is 3%. How much is sales tax?
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Answer:

$1.8

Step-by-step explanation:

6 0
2 years ago
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The transformation T = [0 1 -1 0] is applied the figure below.
Margaret [11]

Answer:

<h2>a.) reflect across x-axis</h2>

Step-by-step explanation:

The transformation described is about multiplying the vertical value by -1:

(x,y) \implies (x,-y)

That means all vertical coordinates will change to the opposite side, but all horizontal coordinates will maintain at the same coordinate.

As a result, we'll have a reflection across the x-axis, because the y coordinates were transformed.

Therefore, the right answer is A.

4 0
3 years ago
Make a conjecture about the next term in the sequence 3, -5, 7, -9, 11​
iVinArrow [24]

Answer:

-13

Step-by-step explanation:

its counting odd numbers in order but switching their positive and negative

7 0
3 years ago
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Why in the world did I have nearly 800 points worth of questions deleted? Every single one of them were right! What do I do now?
vekshin1

Answer:

read your username :)

Step-by-step explanation:

5 0
3 years ago
Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.47 and a standard deviation of 1.5. U
alex41 [277]

Answer:

2.5% of American women have shoe sizes that are greater than 11.47.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 8.47

Standard deviation = 1.5

The normal distribution is symmetric, which means that half the measures are below the mean, and half are above the mean.

What percentage of American women have shoe sizes that are greater than 11.47?

11.47 = 8.47 + 2*1.5

This means that 11.47 is two standard deviations above the mean.

Of those measures below the mean, none are greater than 11.47.

Of those measures above the mean, 95% are between the mean and 11.47, and 5% are above. So

0.5*0.05 = 0.025

2.5% of American women have shoe sizes that are greater than 11.47.

8 0
3 years ago
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