A - number of lawn that Tim needs to mow
310 < 120 + 30a
190 < 30a
6.333 < a
a > 6.333
Tim needs to mow at least 7 lawns in order to earn more than $310
Answer:
Null hypothesis: ∪ₐ = ∪ₓ
Alternative hypothesis: ∪ₐ ≠ ∪ₓ
Step-by-step explanation:
Null hypothesis: ∪ₐ = ∪ₓ
Alternative hypothesis: ∪ₐ ≠ ∪ₓ
where ∪ₐ represents mean of sample of new cars and ∪ₓ represents mean of sample of older cars.
Using a difference in means t test will help determine if new owners tune up their cars more frequently than older car owners.
Answer:
(for # 3) 7
Step-by-step explanation:
because the whole thing = 128 4/7 degrees and there are seven sections that equal 51 3/7 degrees. when added they equal 128 4/7
y
10 I n n n
7.5 I / \ / \ /
5 I/ U U
2.5 I_________x
0 1 2 3 4
The "n" and "U" should be drawn as curved lines (I'm drawing using the keys available to me but if this were hand-drawn the graph would be more ~ -curvy/wavy looking)
The Y-axis "Height in Feet": shows the height of their head from the ground in feet as they bounce
The X-axis "Length of Passing Time in Seconds": shows the seconds as they pass while jumping on the pogo stick
The assumption being made: The head isn't starting from 0 feet off the ground so we began the line near the 5-foot mark
Remember to label your x and y axises
Answer:
18
Step-by-step explanation:
I2=h2+r2
25(2)=h2+7(2)
50=h2+14
-14 -14
36=h2
÷2 ÷2
18=h
