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2 years ago

Some one please help !!! How do I solve -1<-x/3<1

Mathematics

1 answer:

MArishka [77]2 years ago

4 0

- 1 < - x/3 < 1
1st. Multiply all parts by 3:

-3 < - 3x/3 < 3. Simplify the mid term:

-3 < -x < 3. Now multiply all terms by - 1. Note when you multiply by a negative number, you flip the inequality signs:

(-1)(-3) < (-1)(-x) < (-1)(3)

+3 > x> -3

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2 years ago

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3 years ago

1) If the alpha level is changed from α = .05 to α = .01, what happens to boundaries for the critical region?

Alexxandr [17]

Answer:

1) a. Move farther into the tails

2) a. Decreases

Step-by-step explanation:

Hello!

Let's say for example that you are making a confidence interval for the mean, using the Z-distribution:

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Leaving all other terms constant, this are the Z-values for three different confidence levels:

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They have a direct relationship.

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2 years ago

Ann made a 33-step staircase using 1818 toothpicks as shown in the figure. How many toothpicks does she need to add to complete

malfutka [58]

You would take 1818÷33=55.09

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Then you would take 55.09×55=3029.95

You can make sure this is correct by taking 55.09×33=1817.97 which would actually be 1818 because you had to round it up

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2 years ago

Read 2 more answers

What’s the answer and work for this? Someone please tell me

Nadusha1986 [10]

Answer:

<h2>The averages are equal, since both are 4.</h2>

Step-by-step explanation:

2 + 4 + 6 = 12 / 3 = 4

Average of even numbers = 4

1 + 3 + 5 + 7 = 16 / 4 = 4

Average of odd numbers = 4

The averages are equal, since both are 4.

<em>Hope that helps!</em>

8 0

2 years ago