Answer:
a. 0.5
Step-by-step explanation:
We know that X follows normal distribution with
mean=75
standard deviation=8
P(0<Z<∞)
The area under the normal curve is 1 and the (0<Z<∞) =0.5 and (-∞<Z<0) =0.5
So, P(0<Z<∞)=0.5
Hence the P(X ≥ 75)=0.5
Answer:
negative 5
Step-by-step explanation:
4-9= -5
Answer:
first you have to look at one of the sides of the scaled copy. If they are divisible by the numbers in the original shape, then try and see if the others sides of the scaled copy are scaled by the same factor. If they are, then they are a scaled copy.
Step-by-step explanation:
Answer:
5 quarters 12 dimes
Step-by-step explanation:
The quarters have to be a odd number or you wouldn't have the 5 at the end of the number. Because there are "two more then twice as many" dimes then quarters the number of quarters has to stay down. 3 to 5 is a good guess to start. from there you can add up the dimes until it all fits together
