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4 years ago

What is the answer for -7=6x-1

Mathematics

2 answers:

notsponge [240]4 years ago

8 0

-7+1=6x. -6=6x. So the answer will be -1 bc they have opposite signs

ser-zykov [4K]4 years ago

8 0

-7=6x-1
+1 +1 *Move the constants to one side and the variable to the other*
-----------
-6=6x
--- ---
6 6
x=-1

*-7+1=-6 due to rules saying that if a negative number is added to a positive number, it will be subtracted and if the negative number is higher than the positive number, then the sum will be negative*

*We then divide by the number with the variable so we can isolate it.*

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Find the measure of the indicated angle to the nearest degree.

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3 years ago

X + 3.6 = -7.3<br> X =<br> help ASAP

dolphi86 [110]

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3 years ago

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natima [27]

Answer: I think the answer is c

Step-by-step explanation:

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3 years ago

Below are three different hypothesis tests about population proportions. For each test, use StatKey and the information given to

Ilia_Sergeevich [38]

Answer:

1a) p-hat=0.38

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3a) p-hat=0.55

3b) P=0.153

3c) The null hypothesis is not rejected

Step-by-step explanation:

(1) H0: p = 0.3 vs Ha: p ≠ 0.3. In their survey, they had a count of 38 using a sample size n=100.

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The sample size is n=100.

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As it is a two-sided test, the p-value considers both tails of the distribution.

The p-value for this |z|=1.74 is P=0.08.

1c) The null hypothesis is not rejected.

(2) H0: p = 0.7 vs Ha: p ≠ 0.7. In their survey, they had a count of 320 using a sample size n=500.

2a) The p-hat is p-hat=320/500=0.64.

2b) The standard deviation is

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As it is a two-sided test, the p-value considers both tails of the distribution.

The p-value for this |z|=3 is P=0.0027.

2c) The null hypothesis is rejected.

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2a) The p-hat is p-hat=110/200=0.55.

2b) The standard deviation is

$\sigma=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.6*0.4}{200}}=0.035$

The sample size is n=200.

The z-value is:

$z=\frac{\hat{p}-p}{\sigma}=\frac{0.55-0.6}{0.035}=\frac{-0.05}{0.035}=-1.43$

As it is a two-sided test, the p-value considers both tails of the distribution.

The p-value for this |z|=1.43 is P=0.153.

2c) The null hypothesis is not rejected.

8 0

3 years ago

Which weighs more, 5 oz or 150 grams?

tatiyna

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5 0

3 years ago

Read 2 more answers