4x-5(x-2)=12x+4-x ??????????????
1 answer:
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Answer:
Step-by-step explanation:
Answers in order:
7 + 7b - 4 = -6
7b + 1 = -6
7b = -7
b = -1
Hope this helps!
Answer:
The claim is rejected
Step-by-step explanation:
Claim: UCF is advertising their bachelor in Economics with the statistic that the starting salary of a graduate with a bachelor in economics is $ 48,500 according to Payscale (2013-13).
Null hypothesis:
Alternate hypothesis :
n = 50
Since n is more than 30 .
So we will use Z test
x=43350
Standard deviation = 15000
Refer the z table
p value = 0.00776
p value <
So, We are failed to accept null hypothesis
Hence The claim is rejected
Answer:
3
Step-by-step explanation:
Calculate the distance d using the distance formula
d =
with (x₁, y₁ ) = (5, 4) and (x₂, y₂ ) = (- 1, 1)
d =
=
=
=
= 3 ← exact value
≈ 6.71 ( to 2 dec. places )