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goblinko [34]
3 years ago
15

5) -8x – 6 y = 13 4x+3y=-9

Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

Answer:

no solution exists

Step-by-step explanation:

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EleoNora [17]

[Note that you don't have to evaluate k to solve the problem]

x = \frac{kuv}{(u+v)}

That means that

x \frac{(u+v)}{(uv)} = k, a \: constant

So, you want xsuch that

x \frac{(3+3)}{(3 \times 3)} = 3 \frac{(3+1)}{(3 \times 1)}

x=6

4 0
2 years ago
Your company manufactures hot water heaters. The life spans of your product are known to be normally distributed with a mean of
Oksana_A [137]

Answer:

You should claim 10.5325 years on your warranty.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 13, \sigma = 1.5

Want's to replace no more than 5% of the products.

This means that the warranty should be 5th percentile, that is, the value of X when Z has a pvalue of 0.05. So X when Z = -1.645.

Z = \frac{X - \mu}{\sigma}

-1.645 = \frac{X - 13}{1.5}

X - 13 = -1.645*1.5

X = 10.5325

You should claim 10.5325 years on your warranty.

6 0
3 years ago
Examine the diagram. Parallel lines a and b are crossed by transversal t to create 8 angles. Clockwise from top left, the angles
choli [55]

Answer:

60.25 then 34.5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help me to solve this ​
natka813 [3]
5) all you have to do is calculate which would be 2.9166...
6) 65.898
6 0
3 years ago
Read 2 more answers
What is another way to name angle 3?
fiasKO [112]

Answer:

intimately there are three types of angles a cute angle and angle between zero and 90° right angle and angle 90 degree angle of two angle and angle between 90 and 180 degree

7 0
2 years ago
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