Answer:
B. 59°
Step-by-step explanation:
<AOC=77°
<BOC=?
THEREFORE,
<AOC=<BOC+<AOB
77° =7x+17+3x
77°-17=7x+3x
60=10x
x=60/10
x=6°
Now,
<BOC=7x+17
=7*6+17
=42+17
=59
Answer:
The two numbers are 17 and 7.
Step-by-step explanation:
x+y=24
x-y=10
------------
2x=34
x=34/2
x=17
17-y=10
y=17-10
y=7
2/8
4/12
6/24
they can all be simplified to 1/4
Answer:
C
Step-by-step explanation:
Equation 1:

Equation 2:

Answer:

And we can find the probability using the complement rule and with the normal standard table like this:

The probability that the mean height for the sample is greater than 65 inches is 0.007
Step-by-step explanation:
Let X the random variable that represent the women heights of a population, and we know the following parameters
and
We are interested on this probability
Since the sample size selected is 75>30 we can use the centrel limit theorem and the appropiate formula to use would be the z score given by:
If we find the z score for 65 inches we got:

And we can find the probability using the complement rule and with the normal standard table like this:

The probability that the mean height for the sample is greater than 65 inches is 0.007