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2 years ago

14

Amy joins a meal delivery service. Each family meal is $15, and there is a monthly flat shipping fee of $20. If Amy orders eight

family meals this month, which of the following will be her total bill?

1 answer:

8090 [49]2 years ago

4 0

Answer: 140$

Step-by-step explanation: 15$ times 8 meals plus 20 dollar fee eaquals 140$

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Which side lengths form a right triangle?

blagie [28]

Answer:

Options A and B are applicable.

Step-by-step explanation:

The lengths of the sides of a right triangle obey the Pythagoras Theorem that says (Perpendicular)² + (Base)² = (Hypotenuse)².

Now, in option A, the side lengths are 11, 13, and √(290).

So, those lengths form a right triangle as 11² + 13² = {√(290)}².

Again, in option B, the given side lengths are 7, 24, and 25.

So, those lengths form a right triangle as 7² + 24² = 25².

Finally, in option C, the given side lengths are 2, 5, and 7.

But, those lengths do not form a right triangle as 2² + 5² ≠ 7².

Therefore, options A and B are applicable. (Answer)

8 0

3 years ago

How do I delete this

elena-s [515]

Answer:

I hope this helps!

Step-by-step explanation:

Have a great rest of your day!

5 0

3 years ago

Mr. Ealy works at a shoe store. Mr. Ealy's hourly pay is $14, and he also gets 8% commission on sales. He worked 80 hours over t

S_A_V [24]

Answer: D $1,396

80 hours x 14 dollars= 1120 dollars
1120+ 8 percent of shoe sales
shoe sales=3450$
3450x0.08 commision=276$
1120+276= 1396 dollars

3 0

3 years ago

The mean family income for a random sample of 600 suburban households in Loganville shows that a 95 percent confidence interval

Misha Larkins [42]

Answer:

$43100 \leq \mu \leq 59710$

And for this case we want to test the following hypothesis:

Null hypothesis: $\mu =42000$

Alternative hypothesis: $\mu \neq 42000$

For this case since the lower value of the confidence interval is higher than 42000 we have enough evidence to reject the null hypothesis at the 55 of significance and we can conclude that the true mean is significantly different from 42000

Step-by-step explanation:

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And for this case the 95% confidence interval is already calculated as:

$43100 \leq \mu \leq 59710$

And for this case we want to test the following hypothesis:

Null hypothesis: $\mu =42000$

Alternative hypothesis: $\mu \neq 42000$

For this case since the lower value of the confidence interval is higher than 42000 we have enough evidence to reject the null hypothesis at the 55 of significance and we can conclude that the true mean is significantly different from 42000

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3 years ago

Which of these is an example of driving at an average rate of 20 miles per hour?

dlinn [17]

Driving 40 miles in 2 hours is the answer

4 0

2 years ago