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2 years ago

I don't really understand the question

Mathematics

1 answer:

barxatty [35]2 years ago

8 0

Answer:

Angle bisector

Step-by-step explanation:

an angle bisector cuts an angle in half. COA goes from point c to point o to point a to make an angle. and OB is the exact middle of the angle. hope this helps :)

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Keith traveled to Greensboro by

Alecsey [184]

Answer:

Step-by-step explanation:

6 0

2 years ago

For which sample size (n) and sample proportion (p) can a normal curve be

Nonamiya [84]

Answer:

Option c.

Step-by-step explanation:

Using the normal curve to approximate a sampling distribution:

For a sample size n and a proportion n, the normal curve can be used if:

$np \geq 10$ and $n(1-p) \geq 10$

Option a:

$np = 35*0.8 = 28 > 10$

$n(1-p) = 35*0.2 = 7 < 10$

So option a cannot be used.

Option b:

$np = 65*0.9 = 58.5 > 10$

$n(1-p) = 65*0.1 = 6.5 < 10$

So option b cannot be used.

Option c:

$np = 65*0.8 = 52 > 10$

$n(1-p) = 65*0.2 = 13 > 10$

So option c can be used, and is the answer

Option d:

$np = 35*0.9 = 31.5 > 10$

$n(1-p) = 35*0.1 = 3.5 < 10$

So option d cannot be used.

The answer is given by option c.

7 0

3 years ago

I know its summer and everyone done with school but someone help

Gemiola [76]

Answer:

1.55

Step-by-step explanation:

3750+900 = 4650

4650/3000 = 1.55

7 0

3 years ago

Read 2 more answers

Joyce paid $230 for an item at the store that was 20% off the original price. What was the original price?

Svetradugi [14.3K]

Answer:

250

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

If nine times a certain number is subtracted from 7 the result is 52. Find the number.

mezya [45]

Answer:

Let the number to find be x

7 - 9x = 52

-9x = 52-7

- 9x = -45

Divide by - 9

x = 5

The number is 5

Hope this helps.

6 0

3 years ago

Read 2 more answers

I don't really understand the question ​

I don't really understand the question