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solong [7]
3 years ago
15

How can you tell from an equation that a relation is quadratic

Mathematics
1 answer:
monitta3 years ago
5 0

Answer:

if the equation is f(x)=ax^2+bx+c

Step-by-step explanation:

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Answer:

f^-1 (x) = - 6x-1 / 10 + 9x

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Which answer best describes how to solve this story problem? A local store plans to put three coupons in each mailbox on a stree
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You would want to multiply 16 by 3 and then multiply 17 by 3 and after that add them together.
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3 years ago
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Suppose the mean height for adult males in the U.S. is about 70 inches and the standard deviation is about 3 inches. Assume men’
nlexa [21]

Question options :

a. They should be between 64 and 76 inches tall.

b. They should be close to the height that is 95% of the mean. That is, 66.5 inches, plus or minus 2 standard deviations.

c. They should be at or below the 95th percentile, which is 74.92 inches.

d. None of the above.

Answer: a. They should be between 64 and 76 inches tall.

Step-by-step explanation:

Given the following :

Assume men's height follow a normal curve ; and :

Mean height = 70 inches

Standard deviation= 3 inches

According to the empirical rule ;

Assuming a normal distribution with x being random variables ;

About 68% of x-values lie between -1 to 1 standard deviation of the mean. With about 95% of the x values lying between - 2 and +2 standard deviation of mean. With 99.7% falling between - 3 to 3 standard deviations from the mean.

Using the empirical rule :

95% will fall between + or - 2 standard deviation of the mean.

Lower limit = - 2(3) = - 6

Upper limit = 2(3) = 6

(-6+mean) and (+6+ mean)

(-6 + 70) and (6+70)

64 and 76

8 0
3 years ago
Create your own real-world problem that uses either a two-step equation or two-step inequality to solve. Based on your real-worl
zhuklara [117]
Libby wants to make cookies for her whole class. There are 36 students in her class. The recipe Libby is going to use only makes 12 cookies. How many batches of cookies is Libby going to have to make to feed her whole class?
36/12
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3 years ago
A circular pool has a radius of 12 feet. To the nearest square foot, what is the area of the trampoline?
svet-max [94.6K]

Answer:

452 ft.²

Step-by-step explanation:

πr² = 3.14 x 12²

= 452.16

= 452 ft.² (to the nearest square foot)

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3 years ago
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