Answer:
5 seconds.
Step-by-step explanation:
The first thing we can do is convert h(x) into 0. -16x²+64x+80=0
Then, factor out -16, as both 64 and 80 are divisible by 16.
This leaves you with x²-4x-5=0.
Then, you factor that expression to get (x+1)(x-5).
Convert those to x+1=0 and x-5=0.
Your answers will be x= -1 and x= 5, but since we cannot have a negative time, 5 is the only correct option.
Answer:
D. 100 flyers
Step-by-step explanation:
Since each flyer is 1/4 sheet of paper, one sheet of paper will make 4 flyers. Then 25 sheets of paper will make ...
25 × (4 flyers) = 100 flyers
Answer:
17.5
Step-by-step explanation:
According to the study 70% of the internet searches used Google as search engine.
Thus if the event X is the proportion of the searches using Google engine, then expected value of the event X, E(X) = 0.7
From here we can find the expected number of internet searches of a sample of 25 people by multiplying 25 and 0.7, i.e 25*0.7=17.5
2³ is the same as 2 x 2 x 2.
This means that 2³ = 8
Answer: Yes, it is a real number. 3.4 is a rational number and rational numbers are real numbers. So 3.4 is a real number.
