Answer:
B) 7/25
Step-by-step explanation:
sin M = opposite/hypotenuse = 7/25
Answer:
B.21
Step-by-step explanation:
you know that there is 24 feet to 8 yards so now you will solve how many feet is to 7 yards to do that you have to divide 24/8 which gives you 3. So multiply 7x3 which gives you 21.So the answer is B. Hope it helps.
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Stepl
a)
Let X denote the number of teachers that feel
computers are beneficial to students
Then, X-Binomial(n,p)
Given that:
n
= 600
=0.85
a = 0.01
The 99% confidence interval for population
proportion p is calculated using:
¡ I Z0.005 V
n
To solve this, you need to use the equation that gives the relationship between time(t), speed(s), and distance(d):
s=d/t
d=st
For the steam boat, the velocity was 36.8, and the time was 1.75 hours before the speedboat left plus the 1.8 hours after the speedboat left. Substitute this information into the equation to find the distance it travels:
d=36.8*(1.75+1.8)
d=130.64 km
According to the question, we know that the distance the speedboat travels is 86.9 km behind the steam boat. So d for the speedboat is 130.64-86.9, or
43.74 km. It is also given that the speedboat travels for 1.8 hours, so t=1.8. Substitute this information into the equation to find the speed.
s=43.74/1.8
s=24.3 km/h
So the speed of the boat is 24.3 km/h
