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Katyanochek1 [597]
3 years ago
12

Simplify the following expression. X -2/3 . X 6/7

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
3 0

Answer:

Step-by-step explanation:

Hiiii

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The weight of people in a small town in missouri is known to be normally distributed with a mean of 154 pounds and a standard de
ad-work [718]
If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
z=\frac{173-154}{29}=0.655
Referring to a standard normal distribution table, and using z = 0.66, we find:
P(\bar x\ \textless \ 173)=0.7454
Therefore
P(\bar x\ \textgreater \ 173)=1-0.7454=0.2546
The answer is: 0.2546

4 0
4 years ago
Can u pls help me with this question asap​
alexgriva [62]

Answer:

I think its b sorry if its wrong tho

3 0
3 years ago
Will sells 35 liters of milk in a day. how many liters of milk will be sold if he has to sell 125% more milk per day?
sammy [17]
35/100 = 0.35
0.35 x 125 = 43.75

43.75 litres per day
7 0
3 years ago
3a^2+4b^2 for a=2 and b=3
blagie [28]
First write the question:
3a^2 + 4b^2

Substitute:
3 x (2^2)  +  4 x (3^2)

Simplify:
(3 x 4) + (4 x 9)

Simplify again:
12 + 36

Answer:
48

Hope it helped :)

4 0
3 years ago
Read 2 more answers
Can someone help (8 grade math)
adoni [48]

Answer:

B) 110.92 u²

Step-by-step explanation:

to find the surface area, find the area of each side and add them together.

here are all 6 sides:

4.5 * 6.8

4.5 * 6.8

4.5 * 2.2

4.5 * 2.2

2.2 * 6.8

2.2 * 6.8

4.5 * 6.8 = 30.6

4.5 * 6.8 = 30.6

4.5 * 2.2 = 9.9

4.5 * 2.2 = 9.9

2.2 * 6.8 = 14.96

2.2 * 6.8 = 14.96

30.6 + 30.6 + 9.9 + 9.9 + 14.96 + 14.96

110.92

7 0
3 years ago
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