Answer: x=2 and y=−6
Step-by-step explanation: 2x+y=−2, 5x+3y=−8
2x+y=−2
2x+y+−2x=−2+−2x
y=−2x−2
5x+3y=−8
5x+3(−2x−2)=−8
−x−6+6=−8+6
−x=−2
−x
/−1
=
−2
/−1
x=2
y=−2x−2
y=(−2)(2)−2
y=−6
x=2 and y=−6
Answer:
x=5
Step-by-step explanation:
x^3 = 125
Take the cubed root of each side
x^3 ^ (1/3) = 125 ^ (1/3)
x = 5
15 - 2(- 13s + 3) = 9s - 9 + 16s
15 + 26s - 6 = 25s - 9
9 + 26s = 25s - 9
26s - 25s = -9 - 9
s = - 18
Answer:
"Ratio
" seems to be the appropriate choice.
Step-by-step explanation:
- A scale that is being used to mark quantities with a regular process or order, a quantifiable significance discrepancy, as well as a "true zero" value.
- Any factors that should be considered on something like a ratio scale which can be calculated usually involve:
Height: Should be represented in inches, centimeters, feet, respectively., and therefore can't be smaller than 0 (zero).
Answer:
What percentage of pick-up truck drivers want their next vehicle purchase to be another pick-up truck?
Should the speed limit be decreased on the highway connecting two large cities?
How many pedestrians would use a walkway built over a busy road?
Step-by-step explanation:
We use samples when using an entire population is not feasible.
It is not reasonable to ask every pick-up truck driver what they want their next purchase to be; there are too many owners of pick-up trucks. This means we should use a sample.
Many people drive a highway that connects two large cities. It is not reasonable to survey every person that drives it, so we should use a sample.
On a busy road, we may have many pedestrians; this means we should use a sample instead of the entire population.
