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3 years ago

11

ANSWER ASAP PLEASE BEING TIMEDDDDDDDD

2 answers:

DedPeter [7]3 years ago

8 0

Answer:

2x - 7y > 10

&

8 + x > 5

Step-by-step explanation:

Reil [10]3 years ago

5 0

The answer is 8 + x > 5
An equation or an inequality that contains at least one variable is called an open sentence.
When you substitute the variable in an open sentence with a number the resulting statement is either true or false. If the statement is true the number is a solution to the equation or inequality.

Hope this helps you !!

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tia_tia [17]

Answer:The answer can be calculated by doing the following steps;

Step-by-step explanation:

I think you have done some mistakes in question because at one stage there comes a complex no. And at the end the value of n comes in decimal.

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3 years ago

Is it Positive, Negative or Zero?

frozen [14]

Wouldn’t it be negative because it’s below the number line

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Maria wants to know what time it is, but after looking at her analog clock, notices that the numbers are all missing! She notice

VMariaS [17]

Answer:

3:00

Step-by-step explanation:

If the minute hand is pointing straight up, it means that the time is at an exact hour (ex. 1:00, 2:00, not 1:30, etc.).

If the angle between the hour and the minute hand is 90 degrees, then we know that the time is either 3:00 or 9:00.

However, because the time must be between 1:00 and 5:30, it must be 3:00.

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3 years ago

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-3 1/2 - ( 4 1/4) <br> whats the answer?

Anna11 [10]

Answer:

Exact form: -31/4 , Decimal form: -7.75 , Mixed number form: -7 3/4

Step-by-step explanation:

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3 years ago

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A company claims that less than 10% of adults own a smart watch. You want to test this claim, and you find that in a random samp

Nezavi [6.7K]

Answer:

Test statistic is 0.67

Critical value is -2.33

Step-by-step explanation:

Consider the provided information.

The formula for testing a proportion is based on the z statistic.

$z=\frac{\hat p-p_0}{\sqrt{p_0\frac{1-p_0}{n}}}$

Were $\hat p$ is sample proportion.

$p_0$ hypothesized proportion and n is the smaple space,

Random sample of 100 adults, 12% say that they own a smart watch.

A company claims that less than 10% of adults own a smart watch.

Therefore, n = 100 $\hat p$ = 0.12 , $P_0$ = 0.10

$1 - P_0 = 1 - 0.10 = 0.90$

Substitute the respective values in the above formula.

$z=\frac{0.12-0.10}{\sqrt{0.10\frac{0.90}{100}}}$

$z\approx 0.67$

Hence, test statistic = 0.67

This is the left tailed test.

Now using the table the P value is:

P(z < 0.667) = 0.7476

P-value = 0.7476

$\alpha = 0.01$

Here, P-value > α therefore, we are fail to reject the null hypothesis.

$Z_{\alpha}= Z_{0.01} = -2.33$

Hence, Critical value is -2.33

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3 years ago