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GrogVix [38]
3 years ago
6

(2a)3 = _____ This expression without exponents is?

Mathematics
2 answers:
Natalka [10]3 years ago
4 0
<span>(2a)^3 =8a^3

hope it helps</span>
xz_007 [3.2K]3 years ago
3 0
2.3, a.3 = 6+ 3a
olması gerek
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Can someone tell me the line of best fit and slope of this? I need the equation.
liq [111]
You just need to make a line with the most dots that you can. Make the most dots you can fit on one line from the 0 to the end of the graph diagonally and fit as many points as you can. <span />
3 0
3 years ago
20x+17=35x+30 help <br> Is due tomorrow
svet-max [94.6K]

Answer:

x=-\frac{13}{15}

or 15x=-13

Step-by-step explanation:

20x+17=35x+30

20x-35x=30-17

-15x=13

x=-\frac{13}{15}

3 0
3 years ago
Read 2 more answers
An appliance dealer's website features the mean life expectancy values for major household appliances. A standard refrigerator's
marshall27 [118]

Answer:

There is an 84% probability that your standard refrigerator will last between 12 and 20 years.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

A standard refrigerator's mean life expectancy is 18 years with a standard deviation of 2 years. This means that \mu = 18, \sigma = 2.

What is the probability that your standard refrigerator will last between 12 and 20 years?

This probability is the pvalue of Z when X = 20 subtracted by the pvalue of Z when X = 12. So

X = 20

Z = \frac{X - \mu}{\sigma}

Z = \frac{20 - 18}{2}

Z = 1

Z = 1 has a pvalue of 0.8413

X = 12

Z = \frac{X - \mu}{\sigma}

Z = \frac{12- 18}{2}

Z = -3

Z = -3 has a pvalue of 0.0014

This means that there is a 0.8413-0.0014 = 0.8399 = 0.84 = 84% probability that your standard refrigerator will last between 12 and 20 years.

5 0
3 years ago
What is the slope and y-intercept of the equation 3 (y-2)+6 (x+1)-2=0
elena-s [515]
<span>Answer: Slope = -4.000/2.000 = -2.000   x-intercept = 2/6 = 1/3 = 0.33333 <span>   y-intercept = 2/3 = 0.66667


What I'm trying to show in the graph is:
</span></span>
y tells us how far up the line goes.........
x tells us how far along...........
m is the Slope or Gradient i.e. how steep the line is.........
b is the Y-intercept i.e. where the line crosses the Y axis.......

I really hope this helps ^-^



8 0
4 years ago
Help please it’s urgent!
kramer
The correct answer is a, hope this helps
6 0
3 years ago
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