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3 years ago

Erik tried to evaluate 2 x 7,000 step by step.

Mathematics

2 answers:

lyudmila [28]3 years ago

5 0

That’s good to know.

ElenaW [278]3 years ago

4 0

First dktvc fdgvhfcc Hecht dc

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3^-6x(3^3 divide 3^0)^2

Greeley [361]

Answer:

${3}^{2}$

Step-by-step explanation:

$3^{ - 6} \times (3^4 \div 3^0)^2$

$\frac{1}{ {3}^{6} } \times ( {3}^{4} \div {3}^{0} {)}^{2}$

$\frac{1}{729} \times ( {3}^{4} \div {3}^{0} {)}^{2}$

$\frac{1}{729} \times ( {3}^{4} {)}^{2}$

$\frac{1}{729} \times 6561$

$\frac{1}{729} \times (729(9))$

$9$

${3}^{2}$

<h3>Hope it is helpful...</h3>

8 0

3 years ago

(I'd like the quick and short answer please a long explaination is unnecessary)

professor190 [17]

Answer:

(-3;-2)

Step-by-step explanation:

5 0

3 years ago

1 point

Dovator [93]

Answer:

70x + 100

Step-by-step explanation:

Trust me on this one

6 0

2 years ago

One survey showed that among 785 randomly selected subjects who completed four years of college, 18.3% smoke and a 98% confidenc

Valentin [98]

Answer

a. True

Step-by-step explanation:

Based on this survey we estimate that about $18.3\%$ of the college students smokes. And a $98\%$ confidence interval is $[15.1\% ; 21.6\%]$ . So we know that our estimative for the smoking rate is in the confidence interval with $98\%$ certainty. We also know the estimative for the smoking rate in the general population is $27\%$ . So we can write the two possible hypothesis:

$H_0 =$ Smoking rate is equal to $27\%$ .

$H_1 =$ Smoking rate is not equal to $27\%$ .

We will reject the null hypothesis $(H_0)$ if the estimate doesn't fall into the confidence interval for the college students smoking rate.

Since this condition holds we reject the null hypothesis. So with $98\%$ certainty we say that the smoking rate for the general population is different than the smoking rate for the college students.

6 0

3 years ago

30% in simplest form

Lady bird [3.3K]

Answer:

I think it's 3/10

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers