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rjkz [21]
3 years ago
7

Which of the following points lie in the solution set to the following system of inequalities?

Mathematics
1 answer:
laiz [17]3 years ago
7 0

Answer:

B. (5,-2)

Step-by-step explanation:

Plug in X and Y, verify accuracy

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3. -1867-6(171-6)+5<br> Do y’all know the answer ?
olchik [2.2K]

Answer:

- 2852

Step-by-step explanation:

- 1867 - 6( 171 - 6) =  - 2857 \\  - 2857 + 5 =  - 2852

DO NOT FORGET THE BODMASS law

3 0
3 years ago
Find the sum of 93.5 plus 8.7
Ksenya-84 [330]
93.5 + 8.7 = 102.2

Hope this helps! :)
5 0
3 years ago
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Jerel runs 5 days each week. On each of 4 days, he runs 2.3 km. If Jerel runs a total of 14 km, how many kilometers does he run
denis-greek [22]
The answer you need is 19 easy
8 0
3 years ago
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An English professor assigns letter grades on a test according to the following scheme. A: Top 15% of scores B: Scores below the
lisabon 2012 [21]

Answer:

59 to 66

Step-by-step explanation:

Mean test scores = u = 74.2

Standard Deviation = \sigma = 9.6

According to the given data, following is the range of grades:

Grade A: 85% to 100%

Grade B: 55% to 85%

Grade C: 19% to 55%

Grade D: 6% to 19%

Grade F: 0% to 6%

So, the grade D will be given to the students from 6% to 19% scores. We can convert these percentages to numerical limits using the z scores. First we need to to identify the corresponding z scores of these limits.

6% to 19% in decimal form would be 0.06 to 0.19. Corresponding z score for  0.06 is -1.56 and that for 0.19 is -0.88 (From the z table)

The formula for z score is:

z=\frac{x-u}{\sigma}

For z = -1.56, we get:

-1.56=\frac{x-74.2}{9.6}\\\\ x = 59

For z = -0.88, we get:

-0.88=\frac{x-74.2}{9.6}\\\\ x = 66

Therefore, a numerical limits for a D grade would be from 59 to 66 (rounded to nearest whole numbers)

7 0
3 years ago
What is the best estimate for the product of 289 and 7
iVinArrow [24]
I would say about 41.29
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3 years ago
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