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Molodets [167]
3 years ago
14

A project is graded on a scale of 1 to 5. If the random variable, X, is the project grade, what is the mean of the probability

Mathematics
2 answers:
alex41 [277]3 years ago
8 0

Answer:

the mean is 3

answer choice D

Step-by-step explanation:

60/20

katovenus [111]3 years ago
6 0

WHOLE QUIZ:

A

C

D

A

D

B

B

C

A

D

HOPE THAT HELPS

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shtirl [24]

Answer:

-cos^4(x)

Step-by-step explanation:

Step 1: Use the Pythagorean identity : 1=cos^2(x) + sin^2(x)

1-sin^2(x) = cos^2(x)

-1+sin^2(x) = -cos^2(x)

cos^2(x) (-cos^2(x))

Step 2: Factor out common terms cos^2(x)

cos^2(x) (sin^2(x)-1)

Ans: -cos^4(x)

8 0
2 years ago
78/25 as a terminating decimal
Kazeer [188]
To write \frac{78}{25} as a terminating decimal we will turn this fraction to a decimal. To do this we will divide the numerator by the deliminator and the result will be the decimal.Then we will check if it is a terminating decimal or repeating decimal. Lets do it:-

\frac{78}{25}
78 ÷ 25 = 3.12

3.12 is a terminating decimal. 

So, \frac{78}{25} as a terminating decimal is 3.12.

Hope I helped ya!! 
8 0
2 years ago
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1/2(6x-5)=x-3/2 solve for x
Artyom0805 [142]

Answer:

1/2

Step-by-step explanation:

5 0
2 years ago
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Erin spent $15.30 on ingredients for cookies she’s making for the school bake sale. How many cookies must she sell at $0.35 a pi
blondinia [14]

Answer:

she needs to sell at least 44 cookies to make a $0.10 profit

Step-by-step explanation:

to find the answer all you have to do is divide 15.30 by 0.35

4 0
3 years ago
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If p is the midpoint of line xy, xp=11-6b and py=6-b, find xp
MariettaO [177]
Since p is the midpoint then xp and pay must equal each other
So, 11-6b=6-b
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11-6b=6-b
-6 -6
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b=1

xp=11-6(1)
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5 0
3 years ago
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