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Dafna1 [17]
3 years ago
6

PLZ HELP NOW What is the greatest common factor of 10 and 2?

Mathematics
2 answers:
Digiron [165]3 years ago
7 0

Answer:

2

Step-by-step explanation:

lesya [120]3 years ago
5 0

Answer:

The asnwer is 2

uh your welcome

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5m - 3n = 19; m - 6n = -7 /pls. help me solve this linear equation with two variables.
Allisa [31]

Answer:

m = 5, n = 2

Step-by-step explanation:

5m - 3 n = 19\\m - 6n = - 7 \ => m = -7 + 6n\\\\Substitute \ m  \ in \  5m - 3n = 19\\\\5(-7 + 6n) - 3n = 19\\-35 + 30n -3n = 19\\27n = 19 + 35 \\27n = 54 \\n = 2\\\\Substitute \ n = 2 \  in \  m = -7 + 6n\\\\m = -7 + (6 \times 2) = -7 + 12 = 5

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2 years ago
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There are 25 students in Mrs. Venetozzi’s class at the beginning of the school year, and the average number of siblings for each
andrezito [222]
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Therefore, the average number of siblings that each student has is larger than the original average.
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5 0
3 years ago
Suppose that the pH of soil samples taken from a certain geographic region is normally distributed with a mean pH of 7 and a sta
Otrada [13]

Answer:

a) P=0

b) P=1

c) P=0

d) X=7.1645

Step-by-step explanation:

We have the pH of soil for some region being normally distributed, with mean = 7 and standard deviation of 0.10.

a) What is the probability that the resulting pH is between 5.90 and 6.15?

We calculate the z-score for this 2 values, and then compute the probability.

z_1=(X_1-\mu)/\sigma=(5.9-7.0)/0.1=-11\\\\z_2=(X_2-\mu)/\sigma=(6.15-7)/0.1=-8.5

Then the probability is

P(5.90

b) What is the probability that the resulting pH exceeds 6.10?

We repeat the previous procedure.

z=(6.10-7)/0.1=-9\\\\P(x>6.1)=P(z>-9)=1

c) What is the probability that the resulting pH is at most 5.95?

z=(5.95-7)/0.1=-10.5\\\\P(x

d. What value will be exceeded by only 5% of all such pH values?

We have to calculate the value of pH for which only 5% is expected to be higher. This can be represented as P(X>x)=0.05.

In the standard normal distribution, it happens for a z=1.645.

P(z>1.645)=0.05

Then, we can calculate the pH as:

x=\mu+z\sigma=7.0+1.645*0.1=7.0+0.1645=7.1645

4 0
3 years ago
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