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Nataliya [291]
2 years ago
12

Jose explained to his friend, Emily, that when you multiply matrix A by matrix B, you get the same result as if you multiplied m

atrix B by matrix A. Is he correct? Explain why or why not for full credit
Mathematics
1 answer:
Aleks04 [339]2 years ago
5 0

Answer:

yes he is

Step-by-step explanation:

he is correct because say if I multiplied 25 by 10 I would get 250 same would go for if I multiplied 10 by 25 I still would get 250.

I hope this helps

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Which fraction is equivalent to 9/13?
Doss [256]
9/13 is not a fraction that can be simplified: the two numbers don't have a divisor in common.

Let's bring all the other fractions into their simplest form too:

A.6/10=3/5
B. 2/3 This is the simplest form already
C.36/52 =18/26=9/13 ( I divided both numbers by 2 each time)


.... and we don't have to look further, we have already found the right answer: 9/13 is equivalent to 36/52.
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3 years ago
I'm having trouble understanding this math problem it's about triangles and my brain doesn't know how to do any of this stuff​
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Answer:

What is it abt area? angles?

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g An inspector inspects large truckloads of potatoes to determine Suppose that 12 of the potatoes sampled are found to have majo
julia-pushkina [17]

Complete Question

 An inspector inspects large truckloads of potatoes to determine the proportion p in the shipment with major defects prior to using the potatoes to make potato chips. Unless there is clear evidence that this proportion, p, is less than 0.10, he will reject the shipment. He will test the hypotheses

H0: p = 0.10, Ha: p < 0.10.

He selects an SRS of 100 potatoes from the over 2000 potatoes on the truck. Suppose that 6 of the potatoes sampled are found to have major defects. The P-value of this test is.......

Group of answer choices

A 0.4082

B 0.0912

C less than 0.002

D 0.0400

Answer:

Correct option is B

Step-by-step explanation:

From the question we are told that

      The null hypothesis is

   H_o: p = 0.10

   The alternative hypothesis is  

  Ha: p < 0.10.

The sample size is  n =  100

The probability  of getting  a potatoes that is not defected is   p=0.10

The probability of getting a defected potatoes is  q = 1-p

The proportion of defected potatoes is mathematically evaluated as

           \r p = \frac{6}{100} = 0.06

The test statistics is evaluated as

        t =  \frac{\r p  - p}{ \sqrt{ \frac{pq}{n} } }

substituting values

        t =  \frac{0.06  - 0.10}{ \sqrt{ \frac{0.10(1-0.10)}{100} } }

        t = -1.333

The p-value is  0.0912 from the z-table (you can also use excel formula )

       

7 0
3 years ago
Help I don’t get this please I need help
Vlada [557]
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Evaluate 9x+3xy - 2 for x=3 and y=-3
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The answer to that problem is -20.

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