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Ksivusya [100]
3 years ago
10

If s(x) = 2 - x2 and t(x) = 3x, which value is equivalent to (st)(-7)

Mathematics
1 answer:
antoniya [11.8K]3 years ago
6 0

Answer:

1029

Step-by-step explanation:

s(-7)=2-49=-47, t(-7)=-21

(st)(-7)=21*49=1029

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The answer is 6 because 5 candies go's up by three so you would add 3 to 3 3+3
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Estimate the product 57×29
love history [14]
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The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min. If one such class is r
svp [43]

Answer:

0.1 = 10% probability that the class length is between 51.5 and 51.7 min, that is, P(51.5 < X < 51.7) = 0.1.

Step-by-step explanation:

A distribution is called uniform if each outcome has the same probability of happening.

The uniform distributon has two bounds, a and b, and the probability of finding a value between c and d is given by:

P(c \leq X \leq d) = \frac{d - c}{b - a}

The lengths of a professor's classes has a continuous uniform distribution between 50.0 min and 52.0 min.

This means that a = 50, b = 52

If one such class is randomly selected, find the probability that the class length is between 51.5 and 51.7 min.

P(51.5 \leq X \leq 51.7) = \frac{51.7 - 51.5}{52 - 50} = \frac{0.2}{2} = 0.1

0.1 = 10% probability that the class length is between 51.5 and 51.7 min, that is, P(51.5 < X < 51.7) = 0.1.

3 0
3 years ago
A swimming pool is drained at the end of each summer. Fifteen gallons of water are removed per minute. How much does the amount
BartSMP [9]
Multiplying -15 by 60 yields -900, so the amount of water in the pool changes by -900 gallons in one hour.
7 0
3 years ago
Franky's age is 5 years less that 1/2 his mothers age. If Franky is 13 years old,write an equation to determine his mothers age
Alik [6]

Answer:

1/2x-5=13

Step-by-step explanation:

Let x= Frankie’s mother’s age

Half his mother’s age= 1/2x

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We know that Frankie is 13 so that equation is equal to Frankie’s age, which is 13.

Hope this helps.

4 0
3 years ago
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