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lara31 [8.8K]
2 years ago
5

Should you add or subtract these equations? `2x+y=12` x+y=10helppp

Mathematics
2 answers:
dexar [7]2 years ago
8 0

Answer:

i would add

Step-by-step explanation:

Blizzard [7]2 years ago
5 0

Answer:

I would subtract.

Step-by-step explanation:

You need to do the opposite of what the sign says when doing equations.

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What is the critical value at the 0.05 level of significance for a goodness-of-fit test if there are six categories?
9966 [12]

Answer:

The goodness of fitness test χ²with significance of level ∝= 0.05 and 5 degrees of freedom is 11.07  (One tailed test )

Step-by-step explanation:

For n=6  the degrees of freedom will be n-1 = 5 .

The goodness of fitness test χ²with significance of level ∝= 0.05 and 5 degrees of freedom is 11.07  (One tailed test )

The critical region depends on ∝ and the alternative hypothesis

a) When Ha is σ²≠σ² the critical region is

χ²  < χ²(1-∝/2)(n-1) and  χ² > χ²(1-∝/2)(n-1)   Two tailed test

( χ²  < 0.83) and ( χ²  > 0.83)

b) When Ha is σ²> σ² the critical region falls in the right tail and its value is

 χ² > χ²(∝)(n-1)   One tailed test  {11.07  (One tailed test )}

c) When Ha is σ² <σ² the critical region will be entirely in the left tail with critical value  

χ²(1-∝)(n-1)  One tailed test  (1.145)

6 0
3 years ago
Read 2 more answers
\sqrt{12}\times \sqrt{8}
saul85 [17]

Answer:

9.8

Step-by-step explanation:

sqrt(12)=3.5 × sqrt(8)=2.8 = 9.8

5 0
3 years ago
The solution to -6+1/4w=-4
Svetllana [295]

So firstly, add both sides by 6: \frac{1}{4}w=2

Next, multiply both sides by 4, and your answer will be w=8

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3 years ago
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Correct answer gets brainialist!! Music notes are one application of using fractions in the real world. The different types of n
arsen [322]

Answer:

three quarter noted as as fraction would be 3/4

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so three of them would be

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3 years ago
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A department store buys 400 shirts at a cost of $9,600 and sell them at a selling price of $30 each.
oksano4ka [1.4K]

Answer: where’s the question? You didn’t write any questions:c

Step-by-step explanation:

3 0
2 years ago
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