Answer:
2.268 tons
Step-by-step explanation:
Multiply 840 to 2.7 to figure out the weight of 840 bricks.
840 x 2.7 = 2268 kilograms
Convert 2268 kilograms into tons which will be 2.268 tons.
How did I convert? Divide 2268 by 1000 because 1 ton = 1000 kilograms.
Answer:
C) y = 2 lxl - 4
Step-by-step explanation:
The general form of an absolute value function:
f(x) = a l x - h l + k, where "a" represents vertical stretches, and whether the open up or down.
If a is positive, it open up word.
h and k how far the graph shifts horizontally and vertically.
Here the given graph open up word. Therefore, a is positive.
h = 0 and k = -4 shifts down.
Therefore, the given graph y = 2lxl -4
The answer is C) y = 2 lxl - 4
Hope you will understand the concept.
Thank you.
Answer:
Step-by-step explanation:
For this case we have the following info given:
Treatment: 12 13 15 19 20 21 24
Control: 18 23 24 30 32 35 39
We can find the sample mean and deviations with the the following formulas:
And repaplacing we got:
the sample mean for treatment
the sample mean for treatment
the sample deviation for treatment
the sample deviation for control
the sample size for each sample
The degrees of freedom are given by:
The confidence interval for the difference of means is given by:
The confidence is 98% so then the significance is 
and 
. Then the critical value would be:
And replacing we got:
<h3>
Answer: (pr + 1)(q + 1)</h3>
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Work Shown:
Use the factor by grouping method to get the following.
pqr + pr + q + 1
(pqr + pr) + (q + 1)
pr(q + 1) + 1(q + 1)
(pr + 1)(q + 1)
We can use the FOIL rule, distribution, or the box method to expand out (pr+1)(q+1) to get the original expression again. This helps confirm the answer.
