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Sunny_sXe [5.5K]
3 years ago
14

A. (-3,-5) B.( -2,-2) C. (4,9) D.(13,5)

Mathematics
1 answer:
koban [17]3 years ago
6 0
12. The inverse relation has the x- and y-values swapped.

The appropriate choice is ...
  D. (13, 5)
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A box is 6 inches wide and 12 inches high. If the volume of the box is 1242 cubic inches, about how long is the box?
Volgvan
Volume of a box is equal to l*w*h
1242=l*6*12
1242=l*72
l=17.25

Final answer: 17.25 inches
3 0
4 years ago
. A random sample of 100 children with working mothers showed that they were absent from school an average of 6 days per term wi
erica [24]

Answer:

a) The equation is:

Confidence Interval = Mean ± Z score × Standard deviation/√Number of samples

b) The 98% confidence interval = (5.62784, 6.37216)

Step-by-step explanation:

a. Write down the equation you should use to construct the confidence interval for the average number of days absent per term for all the children. (10 points)

Confidence Interval = Mean ± Z score × Standard deviation/√Number of samples

b. Determine a 98% confidence interval estimate for the average number of days absent per term for all the children. (10 points)

Confidence Interval = Mean ± Z score × Standard deviation/√Number of samples

Mean = 6 days

Standard deviation = 1.6 days

Number of samples = 100

Z score of 98% confidence interval = 2.326

Confidence interval = 6 ± 2.326 × 1.6/√100

= 6 ± 2.326 × 1.6/10

= 6 ± 0.37216

= 6 - 0.37216

= 5.62784

6 + 0.37216

= 6.37216

Therefore, the 98% confidence interval = (5.62784, 6.37216)

6 0
3 years ago
Find the sum of the first 3030 terms in this geometric series:
Viefleur [7K]

Answer:

I think it might be B. but I am not so sure.

7 0
3 years ago
Read 2 more answers
What is the value of 2 + b(a? + 4) when a = 2 and b = 4?<br> A 22<br> B 34<br> C 2<br> D 48
lisov135 [29]

Answer: 26

Step-by-step explanation:

lets replace a and b with the numbers provided

2+4(2+4)=2+4(6)=2+24=26

4 0
3 years ago
10 points <br><br> slope of (-2,-4) and (6,7)<br> (explain)
Finger [1]

Answer:

11/-8

Step-by-step explanation:

-2-6=-8

-4-7=11

then flip

4 0
3 years ago
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