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3 years ago

HELP!!! I need to know if this is Function or not a function.

Mathematics

1 answer:

kicyunya [14]3 years ago

6 0

Answer:

Not a function

Step-by-step explanation:

Since x = 1 produces y = 3 and y = 4 , the relation is not a function.

( − 2 , − 5) , ( − 1 , − 3 ) , ( 0 , 0 ) , ( 1 , 3 ) , ( 1 , 4 )

The domain cannot be the same value.

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P = 14.7e-0.21x, where x is the number of miles above sea level. To the nearest foot, how high

AlladinOne [14]

9514 1404 393

Answer:

13064 feet

Step-by-step explanation:

We can rewrite the formula so that x is in feet. Equating the new formula to 8.743 PSI, we have ...

8.743 = 14.7e^(-0.21x/5280)

Dividing by 14.7 and taking natural logs, we have ...

ln(8.743/14.7) = -0.21x/5280

Multiplying by the inverse of the coefficient of x gives ...

x = 5280·ln(8.743/14.7)/-0.21 ≈ 13064.0806

The peak of the mountain is about 13,064 feet high.

5 0

2 years ago

a triangle has coordinates a(-1,-2) b(-4,-2) and c(-4,-5) what are the coordinates of a' the image of point a under a dilation w

quester [9]

9514 1404 393

Answer:

(-3, -6)

Step-by-step explanation:

The scale factor multiplies each coordinate.

A' = 3A = 3(-1, -2) = (-3, -6)

The image of A is ...

A'(-3, -6)

8 0

3 years ago

Find the average rate of change for problems 1-3: X. X^2+7 2. 11 3. 16 4. 23 5. 32 6. 43 1) what is the average rate of change b

miv72 [106K]

Answer:

(1)7 (2)9 (3)6

Step-by-step explanation:

$\left|\begin{array}{c|cc}X&f(X)=X^2+7\\--&-----\\2&11\\3&16\\4&23\\5&32\\6&43\end{array}\right|$

(1)The average rate of change between x=2 and x=5

$\dfrac{dy}{dx} =\dfrac{f(5)-f(2)}{5-2} =\dfrac{32-11}{3} =\dfrac{21}{3} =7$

(2)The average rate of change between x=3 and x=6

$\dfrac{dy}{dx} =\dfrac{f(6)-f(3)}{6-3} =\dfrac{43-16}{3} =\dfrac{27}{3} =9$

(3)The average rate of change between x=2 and x=4

$\dfrac{dy}{dx} =\dfrac{f(4)-f(2)}{4-2} =\dfrac{23-11}{2} =\dfrac{12}{2} =6$

7 0

3 years ago

1*5*665*5665*5545*5665

sergiy2304 [10]

Answer:

thats long just use calcukator

5 0

3 years ago

Rewrite in simplest terms -5(3u + 1) + 10

Luda [366]

Answer:

-15u+5

Step-by-step explanation:

open up the bracket -15u-5+10
liketerms together -15u+5
hence answer is -15u+5

8 0

3 years ago