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tatuchka [14]
3 years ago
8

A random sample of 103 observations produced a sample mean of 30. Find the critical and observed values of Z for the following t

est of hypothesis using a equals 0.05. The population standard deviation is known to be 6 and the population distribution is normal.

Mathematics
1 answer:
True [87]3 years ago
4 0

ok this it easy you will have to dvide and time and subs to my chanel THERE IS THAT APP CALL PHOTO MATH DOWNLOAD AND YOU WILL GET THE RIGHT ANSWER

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Find the product of 8x93 using distributive property. Show the steps and the solution
lesya692 [45]

Explanation:

Distributive property: → a(b+c)=ab+ac

Multiply by the numbers from left to right.

93*8=744

Then, you can also divide into the numbers.

744/8=93

744/93=8

Product it's going to be multiply by the numbers, fractions, factors, and multiples.

Hope this helps!

Thanks!

Have a great day!

3 0
3 years ago
Read 2 more answers
6.5 x 1/9 please help
hjlf

Answer:

13/18

Step-by-step explanation:

  • 6.5 · 1/9 = 6 5/10 · 1/9
  • 6 5/10 · 1/9 = 6 1/2 · 1/9
  • 6 1/2 · 1/9 = 13/2 · 1/9
  • 13/2 · 1/9 = 13/18

Therefore, 6.5 · 1/9 = 13/18.

7 0
2 years ago
Can someone help me please and thank you :)
Citrus2011 [14]

Answer:

the answer is 4328

Step-by-step explanation:

may God bless you and your family during spring break

8 0
2 years ago
Of the 90 votes cast for Marisol, 40% were by girls. How many girls voted for Marisol?
Dafna11 [192]

Answer:

The answer is <u>A) 36</u>

Step-by-step explanation:

Since 40% is equal to 0.4 of 1

You would multiply 90 by 0.4

Which is 36, which would give you answer A)

4 0
3 years ago
Read 2 more answers
Please ASAP help please !!! Help me anyone
worty [1.4K]

difference of squares means that both the terms are square terms. (also there must be a - symbol)

for example

y^2 - 4

square root of y^2 is y

square root of 4 is +2 as well as -2

so you would factorise it like this:

(y+2)(y-2)

1. y^4 has a square root of y^2 as y^2 × y^2 is y^4.

<em>h</em><em>o</em><em>w</em><em>e</em><em>v</em><em>e</em><em>r</em><em>,</em><em> </em>-2 doesnt have a whole number square root so it is not a difference of squares.

2. 25 has a square root of 5. m^2 has a square root of m. n^4 has a square root of n^2. so this 25m^2n^4 is a square term.

1 has a square root of +1 and -1.

therefore, this one is a difference of squares. <u>(</u><u>5</u><u>m</u><u>n</u><u>^</u><u>2</u><u> </u><u>+</u><u>1</u><u>)</u><u> </u><u>(</u><u>5</u><u>mn^2</u><u> </u><u>-</u><u>1</u><u>)</u>

3. p^8 has a square root of p^4. q^4 has a square root of +q^2 and -q^2)

so it is a difference of squares. <u>(</u><u>p</u><u>^</u><u>4</u><u>+</u><u>q</u><u>^</u><u>2</u><u>)</u><u>(</u><u>p</u><u>^</u><u>4</u><u> </u><u>-</u><u>q</u><u>^</u><u>2</u><u>)</u>

4. 16x^2 is a square term as irs square root is 4x.

<em>h</em><em>o</em><em>w</em><em>e</em><em>v</em><em>e</em><em>r</em><em>,</em><em> </em>24 is not a square term.

therefore, it is not a difference of squares.

6 0
3 years ago
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