Answer:
Let n be the number of questions you got right. Then
30-n equals the number of questions you got wrong.
So:
A) 20n-10(30-n)=180
30n-300=180
30n=480
n=16
30-n=14
B)You got <u>16</u> questions right and <u>14</u> questions wrong.
Answer:
F
Step-by-step explanation:
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So,
"double 2"
2(2)
"add 5"
+ 5
Therefore, the whole expression would be:
2(2) + 5
If you wanted to evaluate it, it would come out like this.
4 + 5
9
Answer:
(A)

(B)
Then the cumulative function would be
if 0<x<1
0 otherwise.
Step-by-step explanation:
(A)
We are looking for the probability that the random variable X is greater than 0.8.

(B)
For any
you are looking for the probability
which is

Then the cumulative function would be
if 0<x<1
0 otherwise.
<span>Height of the skyscraper to the nearest hundredth foot
= 5280 Tan(2)
= </span>184.38