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LUCKY_DIMON [66]

4 years ago

6

Sarah backstrokes at an average speed of 8 meters per second , how long will it take her to complete the race of 200 meters leng

th? Please show work

1 answer:

vaieri [72.5K]4 years ago

8 0

Answer:25 seconds

Step-by-step explanation:

Just divide 200/8 and you’ll get 25 because 4 multplied by 25 is 100 so 8 multiplied by 25 is 200

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Alan Lewis purchased a new computer for is office using the store's installment credit plan. The computer cost $5,991.64. What a

Alla [95]

The answer is $3594.98

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3 years ago

A consumer advocacy group wants to determine whether there is a difference between the proportions of the two leading automobile

podryga [215]

Answer:

The answer is "0.3206".

Step-by-step explanation:

$H_0: p_1 = p_2\\\\H_a: p_1 \neq p_2\\\\\hat{p_1} = \frac{X_1}{N_1} = \frac{53}{400} = 0.1325\\\\\hat{p_1}= \frac{X_2}{N_2} = \frac{78}{500}= 0.156\\\\\hat{p} = \frac{(X_1 + X_2)}{(N_1 + N_2)} = \frac{(53+78)}{(400+500)} = 0.1456$

Testing statistic:

$z = \frac{(\hat{p_1}- \hat{p_2})}{\sqrt{(\hat{p} \times (1-\hat{p}) \times (\frac{1}{N_1} + \frac{1}{N_2}))}}$

$=\frac{(0.1325-0.156)}{\sqrt{(0.1456\times (1-0.1456)\times (\frac{1}{400} + \frac{1}{500}))}}\\\\ = -0.99$

Calculating the P-value Approach

$\text{P-value}= 0.3206$

7 0

3 years ago

Calculate annually compounded interest

Hunter-Best [27]

Answer:

$2,851.80

Step-by-step explanation:

Lets use the compound interest formula to solve:

$A=P(1+\frac{r}{n} )^{nt}$

<em>P = initial balance</em>

<em>r = interest rate (decimal)</em>

<em>n = number of times compounded annually</em>

<em>t = time</em>

First, change 1.1% into a decimal:

1.1% -> $\frac{1.1}{100}$ -> 0.011

Next, plug the values into the equation:

$A=2,700(1+\frac{0.011}{1})^{1(5)}$

$A=2,851.80$

She will have $2,851.80 after 5 years.

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3 years ago

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nalin [4]

Answer:

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Step-by-step explanation:

Divide 8(dollars) by 12 (donuts) and you get 0.66666666666666666666666666666667

But, round it and you get .67

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Which choice is equivalent to the product below

tino4ka555 [31]

The answer to the question is d

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4 years ago