Answer:
Amount of money Elsa spent= amount of money given by grandmother,x - amount of money saved.
Hence for the first four weeks, amount spent= 4(x-10) as she saved 10 per week for 4 weeks.
For the next eight weeks, amount spent= 8(x-15) as she saved 15 per week for 8 weeks.
Thus the answer would be the first option.
Subtract 43 from 180 as the sum of a triangle adds up to 180 degrees.
180 - 43 = 137
:)
Answer:
Step-by-step explanation:
arccos(0) = 90 degrees
Cos is 0 when ever sin(x) =-1 this occurs at 270 degrees and when sin(x) = 1 at 90 degrees. However, the domain of arccos(x) is restricted from 0 to pi. So the value of arccos(0) is pi/2 or 90 degrees.
Answer:
it's 112 both sides of the same and they're all so obtuse so therefore both of the other sides are the same
Step-by-step explanation:
Answer:
Step-by-step explanation:
You don't need technology to figure this out.
Clearly, the multiplier 47 on the x^2 term is way too large, eliminating the 1st and 3rd choices. The general trend is downward, so the 2nd choice is inappropriate. The 4th choice is the only one that makes sense.
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If you do use a calculator, you find it confirms this assessment.
