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andrew-mc [135]
3 years ago
11

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 49.0 and 54.

0 minutes. Find the probability that a given class period runs between 50.75 and 51.75 minutes.
Find the probability of selecting a class that runs between and minutes.
Mathematics
1 answer:
Pie3 years ago
8 0

Answer:

0.2

Step-by-step explanation:

Write a proportion.

(54.0 − 49.0) / 1 = (51.75 − 50.75) / x

5 = 1 / x

x = 0.2

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This is probably so easy but im dumb lol plz help.
Airida [17]
Don’t say you’re dumb ! we always need help sometimes.

(5x)^2 = ____x^2

distribute the exponent ‘2’ to both terms inside the parentheses.

so it will be (5)^2(x^2)

simplify. 5^2=25, (x^2)=x^2

so the answer is 25x^2
5 0
3 years ago
Read 2 more answers
2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2.
gavmur [86]
2(-4)2=-16
-2(2)4=-16
(3)2=6
-(-4)2=8
(2)4=8
8+8=16+6=22-16=6-16=-10
-10 is the final answer.
6 0
3 years ago
if signs are the same you add and if signs are different you subtract which equation does this explain ​
hram777 [196]

Answer:

Yes

Step-by-step explanation:

cuz y not

8 0
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2 years ago
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