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sashaice [31]
3 years ago
5

What is the value of x?

Mathematics
1 answer:
timama [110]3 years ago
7 0

Answer:

x = 114

Step-by-step explanation:

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How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 95% confidence that
lukranit [14]

Answer: 25 computers will be selected

Step-by-step explanation:

Where: Z -value at 95% confidence = 1.96; SD = Standard deviation = 10 minutes; N = Sample size; Margin error = 4 minutesSubstituting;4 = 1.96*10/Sqrt (N)Sqrt (N) = (1.96*10)/4 = 4.9N = 4.9^2 = 24.01 ≈ 25

5 0
2 years ago
Write the solution to the given inequality in interval notation.
melomori [17]
The answer is [4,6) because a square bracket (closed) denotes that the lower bound is inclusive, and the parenthesis (open) denotes that the upper bound is exclusive.

As you can see on the number line, there is a closed dot on 4 and an open dot on 6.



8 0
3 years ago
What number is equal to its opposite of 10-(-7)?
lara [203]

Answer:

10-(-7) is also 17

Step-by-step explanation:

__-(-__)=__+___

- and - = +

So 10+7 = 17

Happy learning!

--Applepi101

4 0
2 years ago
Solve the equation. 6x - 3 (x+8) = 9
spin [16.1K]

Answer:

x=11

Step-by-step explanation:

6x-3(x+8)=9

Using the distributive property, we can turn 6x-3(x+8)=9 into 6x-3x-24=9, which simplifies to 3x-24=9 by combining like terms. Now, if we add 24 to both sides, we get 3x=33. By dividing both sides by 3, we get x=11.

Check:

66-3*19=9

66-57 does in fact equal 9.

3 0
3 years ago
Read 2 more answers
Is the histogram uniform, symmetric, or skewed?
aleksandrvk [35]

Answer:

skewed to the left

Step-by-step explanation:

when you look at the graph, you look for where the peaks are. if the peak is not centered, it is skewed. in this case, it leans towards the left. hope this helps :)

4 0
2 years ago
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