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Mandarinka [93]
2 years ago
5

Trial

Mathematics
1 answer:
n200080 [17]2 years ago
4 0

Answer:

4 minutes is the answer ok

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A coal car on a train weighs 30 tons plus 1 ton per cubic yard of coal x that it carries. The total weight of a coal car is: f(x
alisha [4.7K]

Answer: Then the graph of the function f(x) will change shifting vertically down (because the negative sign in 4) by 4 tons.

Option c. The line will shift vertically down by 4 tons.


Solution:

Total weight of a coal car: f(x)=x+30

How will the graph of this function change if the coal car weight is changed to 26 tons?

The total weight of the coal car would be: g(x)=x+26

f(x)=x+30

30=26+4

f(x)=x+26+4

g(x)=x+26

f(x)=g(x)+4

Subtracting 4 both sides of the equation:

f(x)-4=g(x)+4-4

f(x)-4=g(x)

g(x)=f(x)-4

Then the graph of the function f(x) will change shifting vertically down (because the negative sign in 4) by 4 tons.

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3 years ago
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A construction company wanted to know if people liked their home models, so they surveyed all of the homeowners
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8 0
3 years ago
Which are equations? Check all that apply.
VARVARA [1.3K]

Answer:

2,3,4,5

Step-by-step explanation:

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How much longer is 3 meters than 3 yards?
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3 meters is 9.84252 feet, and 3 yards is 9 feet
So 3 meters is .84252 feet more that 3 yards.
5 0
3 years ago
A repeated-measures study and an independent-measures study both produce a t statistic with df = 20. The repeated-measures study
Y_Kistochka [10]

Answer:

B. False

Step-by-step explanation:

We have that both studies have the same production for what the first part of the statement mentions.

"A repeated-measures study and an independent-measures study both produces a t statistic with df = 20"

And they ask us if it is false or true, if one produces more than the other.

Starting from the first statement, the second statement is false because they produce the same, therefore they will be the same subjects.

5 0
3 years ago
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