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olga55 [171]
3 years ago
6

ABCD is not drawn to scale based on the diagonal measures given ABCD___ a parallelogram

Mathematics
1 answer:
svp [43]3 years ago
4 0

Answer:

B!!

yes .-.-.-.-.

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If it is assumed that the heights of men are normally distributed with a standard deviation of 2.5 inches, how large a sample sh
Volgvan

Answer:

30 men

Step-by-step explanation:

In order to be sure that the sample mean does differ from the population mean by more than 0.90, the sample size (n) that should be used is given by:

0.90 < Z\frac{s}{\sqrt{n}}

Where 'Z' , for a 95% probability is 1.960, 's' is the standard deviation of 2.5 inches:

0.90 > 1.960\frac{2.5}{\sqrt{n}}\\n >(\frac{1.960*2.5}{0.9})^2\\n>29.64

Rounding up to the nearest whole number, the sample size should be at least 30 men.

7 0
3 years ago
A survey in one middle school showed that 4 out of 9 students help cook meals at home. Predict how many out of the 720 students
valentinak56 [21]

Answer:

yes b

Step-by-step explanation:

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5 0
3 years ago
Y=-2х - 4 y=x - 5 how many solutions does this have​
spayn [35]

Answer:

one solution

Step-by-step explanation:

-2x - 4 = x - 5

-3x - 4 = -5

-3x = -1

x = 1/3

y = 1/3 - 5

y = 1/3 - 15/3

y = -14/3

(1/3, -14/3)

5 0
3 years ago
Which action will solve the equation? m−20=9 Subtract 9 from each side. Add 20 to each side. Subtract 20 from each side. Add 9 t
djyliett [7]

Answer:

m=29

Step-by-step explanation:

add 20 to both sides and that is what m equals

7 0
3 years ago
Convert the equation -9x^2+25y^2-100y-125=0 into standard form​
Rudiy27

Answer:

(y−2)29−x225=1

Step-by-step explanation:

5 0
3 years ago
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