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kolbaska11 [484]
2 years ago
5

Can someone please help me with this one? Oh and in the boxes I need to put a number NOT a check mark.

Mathematics
1 answer:
kari74 [83]2 years ago
3 0
Grade 7 : Yes = 2 , No = 3
Grade 8 : Yes = 1 , No = 4
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50 POINTS!!!!
garri49 [273]

Answer:

The answer is D

x = 4

y = -2

z = 3

Step-by-step explanation:

Plug in the values of x and z into the first equation, and see that D is the only choice that is correct.

4 0
3 years ago
Read 2 more answers
What is 1×1,000+3×10,000+9×1,000+8×100+5×10+2×1
xenn [34]
Use PEMDAS for this problem.
1 x 1000=   + 1000
3 x 10,000= 30,000
---------------------------
                 + 31000
                       9000
---------------------------
                 + 40000
                         800
--------------------------
                    + 40800
                              50
------------------------------
                       + 40850
                                  2
------------------------------
             Answer: 40,852

Hoped this helped.

~Bob Ross ®
5 0
3 years ago
Why are there no properties of subtraction or division?
tia_tia [17]
There are no properties because you can do anything with subtraction and division
4 0
2 years ago
Tell which rule applies to each expression
tankabanditka [31]

Answer:

1. Product

2. Power

3. Quotient

Step-by-step explanation:

1. It is multiplying.

2. Honestly it’s really distribution, but process of elimination it’s power because…

3. Is division.

I hope this helps, good luck! :)

7 0
2 years ago
Read 2 more answers
A researcher selects all of the possible samples with n = 8 scores from a population and computes the mean, dividing by n, for e
Nadusha1986 [10]

Answer:

By the Central Limit Theorem, the average value for all of the sample means is 14.

Step-by-step explanation:

We use the central limit theorem to solve this question.

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means of size n can be approximated to a normal distribution with mean \mu and standard deviation, which is also called standard error s = \frac{\sigma}{\sqrt{n}}

If the population mean is μ = 14, then what is the average value for all of the sample means?

By the Central Limit Theorem, the average value for all of the sample means is 14.

3 0
3 years ago
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