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3 years ago

Which is equivalent to $4.00?

Mathematics

1 answer:

saul85 [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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Find the slope of a line perpendicular to 6x-2y=-3

SVEN [57.7K]

Answer:

the slope is -3

Step-by-step explanation:

6 0

3 years ago

A student's course grade is based on one midterm that counts as % of his final grade, one class project that counts as % of

Andrei [34K]

Answer:

The overall score is 75.6

Letter grade is C

Step-by-step explanation:

The question has missing details (See comment section for complete question).

From the complete question, we have:

Proportion:

$Midterm = 15\%$

$Project = 25\%$

$Assignment = 40\%$

$Exam = 20\%$

Scores

$Midterm = 66$

$Project = 90$

$Assignment = 75$

$Exam = 66$

Solving (a): The overall score

To do this, we simply calculate the mean of the given data.

The mean is calculated by multiplying each proportion by the scores..

So, we have:

$Overall = 15\% * 66 + 25\% * 90 + 40\% * 75 + 20\% * 66$

$Overall = 9.9 + 22.5 + 30 + 13.2$

$Overall = 75.6$

Solving (b): The letter grade

From the question, we have:

$A: Mean \ge 90$

$B: 80 \le Mean < 90$

$C: 70 \le Mean < 80$

The overall score falls in the following category:

$C: 70 \le Mean < 80$

Because:

$70 \le 75.6 < 80$

Hence, the letter grade is C

8 0

3 years ago

If a subway car travels at at rate of 32 feet per second, how far does it travel in 16 seconds?

Vanyuwa [196]

512 feet per 16 seconds

4 0

3 years ago

Read 2 more answers

If y = 5x − 4, which of the following sets represents possible inputs and outputs of the function represented as ordered pairs?

katen-ka-za [31]

The second one {(0,-4),(2,6),(4,16)} hoped this helped!

3 0

3 years ago

The number of cars sold annually by used car salespeople is normally distributed with a standard deviation of 17. A random sampl

Drupady [299]

Answer: Estimate mean is between 67.463 and 70.537

Step-by-step explanation: A 95% Confidence interval of a sample mean:

mean ± $z.\frac{s}{\sqrt{n} }$

α = 1 - 0.95

α = 0.05

α/2 = 0.025

z-score of α/2 = 1.96

Knowing that mean = 69, sd = 17 and there were 470 salespeople in the sample:

69 ± $1.96.\frac{17}{\sqrt{470} }$

69 ± $1.96.\frac{17}{21.68}$

69 ± $1.96.0.78$

69 ± 1.537

lower limit: 69 - 1.537 = 67.463

upper limit: 69 + 1.537 = 70.537

With a confidence of 95%, the estimate mean number of cars sold is between 67.463 and 70.537

5 0

3 years ago