All categories

3 years ago

Ratio of AC:CB??? .———.—————.

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

7 0

Answer:

2:3 I think

Step-by-step explanation:

You might be interested in

Among 20 golden hamster litters recorded, there was a sample mean of =7.72 baby hamsters, with a sample standard deviation of s=

Ivan

Answer:

$7.72 -2.539 \frac{2.5}{\sqrt{20}} =6.30$

$7.72 +2.539 \frac{2.5}{\sqrt{20}} =9.14$

Step-by-step explanation:

For this case we have the following info given:

$\bar X= 7.72$ represent the sample mean

$s= 2.5$ represent the sample deviation

$n=20$ represent the sample size

The confidence interval is given by:

$\bar X \pm t_{\alpha/2} \frac{s}{\sqrt{n}}$

The confidence interval is 98% and the significance level is $\alpha=0.02$ the degrees of freedom are given by:

$df= n-1 = 20-1=19$

And the critical value would be:

$t_{\alpha/2}= 2.539$

And replacing we got:

$7.72 -2.539 \frac{2.5}{\sqrt{20}} =6.30$

$7.72 +2.539 \frac{2.5}{\sqrt{20}} =9.14$

7 0

3 years ago

∠ 1 and angle∠2 are complementary angles. The measure of angle∠1 is 33°. The measure of angle∠2 is 3x°. Find the value of x. (Fi

Aleonysh [2.5K]

Complementary angles add up to 90 degrees.
m < 1 + m < 2 = 90
33 + 3x = 90
3x = 90 - 33
3x = 57
x = 19

6 0

3 years ago

Please help me thank you

Inessa [10]

Answer:

D) Perpendicular

Step-by-step explanation:

Red: 5y+4x=-30

Blue: y=5/4x-5

3 0

3 years ago

Michael is renting a bicycle for $12 per hour.

o-na [289]

Answer:

20 cents/minute

Step-by-step explanation:

We need to convert both units

1 dollar is 100 cents

12 dollars * 100 cents/1 dollar = 1200 cents

1 hour = 60 minutes

1 hours * 60 minutes / 1 hour = 60 minutes

12 dollars/ hour = 1200 cents / 60 minutes

Simplify

20 cents/minute

6 0

2 years ago

Read 2 more answers

1/3 / 1/2 in a fraction form

ratelena [41]

Answer:

Step-by-step explanation:

2/4 5/6

7 0

3 years ago