Yes☺
you are right 7 times 6 is 42 and 7 times. 8 is 56
9514 1404 393
Answer:
{2.96, 12.66}
Step-by-step explanation:
A graph shows the rocket will be 600 feet up after 2.96 seconds, and again at 12.66 seconds.
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You can solve the equation h = 600 to find the times.
-16t^2 +250t = 600
-16(t^2 -15.625t) = 600
-16(t^2 -15.625t +7.8125²) = 600 -16(7.8125²)
-16(t -7.8125)² = -376.5625
t -7.8125 = √(376.5625/16) ≈ ±4.8513
t = 7.8125 ± 4.8513 ≈ {2.9612, 12.6638}
The rocket will be 600 ft above the ground 2.96 and 12.66 seconds after launch.
Please help me get this answer right
d
Answer:
the probability that the ext order will be shrimp = 27.78%
Step-by-step explanation:
Vegetable 333
Chicken 666
Pork 222
Beef 222
Shrimp 555
total = 1,998
P (shrimp) = 555 / 1,998 = 0.2777 or 27.78%
in case the numbers in the orders were:
Vegetable 3
Chicken 6
Pork 2
Beef 2
Shrimp 5
total = 18
P (shrimp) = 5 / 18 = 0.2777 or 27.78%
The probability of an event happening is just the number of times that event occurred divided by the total number of events that took place.
Answer:
The sampling method used is a stratified sampling method
Step-by-step explanation:
sampling is the selection of a predetermined representative subpopulation from a larger population, to estimate the characteristics of the whole population.
Stratified sampling: Here, the total population are divided into subcategories (strata) before sampling is done. The strata are formed based on some common characteristics. In our example, the times of the day (morning, afternoon and evening) has widely varying atmospheric conditions which will add biases to the measurement of air quality. For example, the air in the morning if compared to the afternoon in an industrial area may be purer because of minimal industrial activity, hence effective comparison will be made by stratification.
