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3 years ago

If j(x)=3x+1, find x if j(x)=-11. I need help quick please

Mathematics

1 answer:

Vinvika [58]3 years ago

5 0

Answer:

x = -4

Step-by-step explanation:

Step 1: Define

j(x) = 3x + 1

j(x) = -11

Step 2: Substitute and solve for x

-11 = 3x + 1

-12 = 3x

x = -4

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Answer:

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Step-by-step explanation:

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Here, random guess means; p = 50%

So, Null Hypothesis, $H_0$ : p = 50% {means that the touch therapists use a method equivalent to random guesses}

Alternate Hypothesis, $H_A$ : p $\neq$ 50% {means that the touch therapists does not use a method equivalent to random guesses}

The test statistics that would be used here One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of touch therapists were correct = $\frac{105}{264}$ = 0.39

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The value of z test statistics is -3.395.

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2 years ago

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3 years ago

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2 years ago

If j(x)=3x+1, find x if j(x)=-11. I need help quick please​

If j(x)=3x+1, find x if j(x)=-11. I need help quick please