Answer:
8 weeks
Step-by-step explanation:
48 is 75%
x is 100%
48×100=4800
75x=4800
x=4800:75
x=64
64-48=16
16:2=8
Answer is 8 weeks
Answer:
I prefer taking B
Step-by-step explanation : because when the degree is 90 than it should be a right triangle
69 and 83 hundredths
69.83 is the answer
7n-8=-29
You got the equation correct.
I'm not sure if you want me to solve n but I'll do it in case you need help on that.
First, add 8 on both sides which would equal 7n=-21.
Now, divide 7 on both sides.
n=-3
Hope this helps
Answer:
23 chalkboards
Step-by-step explanation:
Given:
Mean length = 5 m
Standard deviation = 0.01
Number of units ordered = 1000
Now,
The z factor =
or
The z factor =
or
Z = - 2
Now, the Probability P( length < 4.98 )
Also, From z table the p-value = 0.0228
therefore,
P( length < 4.98 ) = 0.0228
Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.