Select the correct answer.

Mathematics

1 answer:

Marianna [84]3 years ago

3 0

Answer:

your welcome your answer gonna be the letter C

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Sara is taking a test made up of multiple-choice and open-ended questions. The multiple-choice questions have a value of 4 point

9966 [12]

Answer:

To find this, you must find the total number of points Sara has scored already. She has answered 10 multiple choice questions which are 4 points each. This means that Sara has scored 40 points so far.

If Sara wants to score at least 70 points, she needs to score at least 30 more points. To find how many open-ended questions she needs to answer, you need to divide the remaining number of points by the number of points an open-ended question is worth. The number we get will be x.

30/5 = 6

This means Sara must complete at least 6 open-ended questions to score 70. Now, all we have to do is figure out which inequality sign to use. Since Sara wants to score more than 70 points, it should be the "greater than" sign.

Your answer is: x>6

Step-by-step explanation:

8 0

3 years ago

Karina bought a townhouse for $199,900. She has a 30 year mortgage with a fixed rate of 5.5%. Karina’s monthly payments are $998

vodomira [7]

Answer:

B. 12%

Step-by-step explanation:

3 0

4 years ago

A sample of 64 was taken from a population, with the mean of the sample being 119 and the standard deviation of the sample being

Fofino [41]

We have the sample size, sample mean and the sample standard deviation. Since the population standard deviation is not know, we will use t-distribution to find the confidence interval.

The critical t value for 95% confidence interval and 63 degrees of freedom is 1.998.

The 95% confidence for the population mean will be:

$(119-1.998 *\frac{16}{ \sqrt{64} } ,119+1.998 *\frac{16}{ \sqrt{64} }) \\ \\ 
=(115.004, 122.996) \\ \\=(115,123)$

Thus, the 95% confidence interval for the population mean will be (115,123)

So, option A is the correct answer

6 0

3 years ago

Solve the equation for the given variable. Bx+Cy=D Solve for y

WARRIOR [948]

Bx + Cy = D

Solve for y . . .

*subtract Bx from both sides

Bx - Bx + Cy = D - Bx

Cy = D - Bx

*now divide both sides by C

Cy/C = (D - Bx)/C

Cy/C = D/C - Bx/C

y = D/C - (B/C)x

y = -(B/C)x + D/C

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3 years ago

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The graph shows the distance a car traveled, y, in x hours:

Sindrei [870]

B i hope it helps if not sorry

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3 years ago

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