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RideAnS [48]
3 years ago
10

Pls I need help geomtry

Mathematics
2 answers:
charle [14.2K]3 years ago
6 0

Answer:

EDF=53°

Step-by-step explanation:

Because line CF creates a straight angle which equals 180°. Subtract 127° from 180° and you have the remaining degree of EDF.

(I'm sorry, that's all I know. The others seem wrong, but it is still kind of blurry and I don't know how many should be right)

Basile [38]3 years ago
4 0

Answer:

1st option

i know for sure and....

Last one totally wrong

Step-by-step explanation:

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The mean annual tuition and fees for a sample of 15 private colleges was with a standard deviation of . A dotplot shows that it
Fudgin [204]

Answer:

Step-by-step explanation:

The question is incomplete. The complete question is:

The mean annual tuition and fees for a sample of 15 private colleges was $35,500 with a standard deviation of $6500. A dotplot shows that it is reasonable to assume that the population is approximately normal. You wish to test whether the mean tuition and fees for private colleges is different from $32,500. State the null and alternate hypotheses. A) H0: 4 = 32,500, H:4=35,500 C) H: 4 = 35,500, H7:35,500 B) H: 4 = 32,500, H : 4 # 32,500 D) H0:41 # 32,500, H : 4 = 32,500

Solution

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

H0: µ = 32500

For the alternative hypothesis,

Ha: µ ≠ 32500

This is a two tailed test.

Since the number of samples is small and the population standard deviation is not given, the distribution is a student's t.

Since n = 15,

Degrees of freedom, df = n - 1 = 15 - 1 = 14

t = (x - µ)/(s/√n)

Where

x = sample mean = 35500

µ = population mean = 32500

s = samples standard deviation = 6500

t = (35500 - 32500)/(6500/√15) = 1.79

We would determine the p value using the t test calculator. It becomes

p = 0.095

Assuming alpha = 0.05

Since alpha, 0.05 < than the p value, 0.095, then we would fail to reject the null hypothesis.

7 0
3 years ago
Helpppppppppppppppppppppppppppppppp
nirvana33 [79]

Answer:

= 15.6 \times 18 \\  = 280.8 \:  {in}^{2}  \\  =  >  \: six \: sides \\  = 280.8 \times 6 \\  = 1684.8 \:  {in}^{2}

8 0
3 years ago
Please answer this quick!I'm running out of time!
const2013 [10]
60%. That is the probability.
6 0
3 years ago
Mary has a third of the money that Erin has. Erin has $8 less than John. Together they have $267. How much money does each of th
svet-max [94.6K]

Mary = (1/3)x

Erin = x - 8

John = x

Here is your equation:

(1/3)x + (x - 8) + x = 267

Take it from here.

5 0
3 years ago
Read 2 more answers
Which number makes the statement true <br> 12:30 = x:50 <br> A) 30<br> B) 32<br> C) 35<br> D) 41
lora16 [44]

Answer:

i think options are incorrect

x is 20 here

you can verify by putting value

6 0
3 years ago
Read 2 more answers
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