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vodomira [7]
3 years ago
15

2 equivalent forms of 0.7875

Mathematics
1 answer:
nadezda [96]3 years ago
4 0
Idk what that answer is soooo
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There are 10 students in class and the number of siblings in their families are given by {1,1,1,1,2,3,3,4,4,4}. Consider the exp
Svetllana [295]

Answer:

a. Check the attached image

b. The Pr(Y > 2) = ½

c. The mean is 2.4

d. The standard deviation is: 2.72

e. The exact value is 1 because it is certain from the given data that any probability will fall within that range.

Step-by-step explanation:

a. An image showing the step by step solution is attached.

b. P(Y > 2) = P(3) + P(4)

= 2/10 + 3/10 = 5/10 = ½

c. The mean is 2.4

d. The standard deviation is: 2.72

e. Check the attached image for the steps.

7 0
3 years ago
a company is offering a job with a salary of $30,000 for the first year and a 5% raise each year after that. if the 5% raise con
Ber [7]
<span>First year is 30,000.
</span><span>Earn 5% raise every year.
</span>Growth factor is 1.05 this sounds a lot like a geometric ratio.

An = A1 × r^(n-1)Sn = A1 × (1 - r^n) / (1-r)<span>n = 40
A1 = 30,000
A40 = $30,000 * 1.05^39 = $201,142.53

S40 = A1 * (1 - 1.05^40) / (1-1.05) which becomes:
S40 = 30,000 * -6.039988712 / -.05 which becomes: 
</span>S40 = -181,199.6614 / -.05 which becomes:
S40 = $3,623,993.227

<span>The individual yearly calculations are shown below: </span>

8 0
3 years ago
-7(k-8)+2k
Vladimir79 [104]

Step-by-step explanation:

-7(k-8)+2k Use distributive property.

-7k+56+2k Combine like terms.

-5k+56


Mother knows best :)

4 0
3 years ago
What is the measure of ∠R ?
Zinaida [17]
Using the Law of Sines  (sina/A=sinb/B=sinc/C for any triangle)

sinR/30=sin96/54

sinR=30sin96/54

R=arcsin(30sin96/54)°

R≈33.5°  (to nearest tenth of a degree)
4 0
3 years ago
Read 2 more answers
What is the distance from<br> 23, 5) to (33, -12)
Ilya [14]

Answer: 19.723083

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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