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Elanso [62]
4 years ago
10

F(-7) if f(x) = 8x + 15

Mathematics
2 answers:
Aleksandr [31]4 years ago
4 0

Answer:

f(x) = 8x + 15

f(-7)=8*(-7)+15=-56+15=-41

OLga [1]4 years ago
3 0

Hey!

------------------------------------------------

Steps To Solve:

f(x) = 8x + 15 if f(-7)

~Substitute

f(-7) = 8(-7) + 15

~Multiply

f(-7) = -56 + 15

~Add

f(-17) = -41

------------------------------------------------

When f(-7) it's -41!

------------------------------------------------

Hope This Helped! Good Luck!

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For which rational expressions is –5 an excluded value? Check all that apply.
Anika [276]

Answer:

option C and F

Step-by-step explanation:

Given excluded value is x=-5

Excluded value are the values that makes the denominator 0

Now we check out each option and see , in which option the denominator becomes 0 when x=-5

When denominator has (x+5) then when we plug in x=-5

(x+5) becomes (-5+5) =0

So we look at the options that has factor (x+5) in the denominator

In option C  we have x^2 -25

When we plug in -5  for x  then it becomes (-5)^2 - 25 =0

So x=-5  makes the denominator 0

-5 is an excluded value for option C

Last option f has x+5 in the denominator

x=-5 make the denominator 0

so , -5 is an excluded value for option F


3 0
3 years ago
Round the number to the nearest thousandth 5.7935
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The answer would be 5.794.
The thousandths place is where the 3 is. If the number to the right of it is 5 or bigger, than you can round up. If not, then you round down.
7 0
4 years ago
A rock is thrown from the top of a tall building. The distance, in feet, between the rock and the ground x seconds after it is t
svlad2 [7]

Answer: the answer to the question is C

5 0
2 years ago
The Navy Pier Ferris Wheel in Chicago has a circumference that is ​56% of the circumference of the first Ferris wheel built in 1
mr_godi [17]

Hey there! I'm happy to help!

439.6 is 56% of the first Ferris wheel. The word is means equals, so we can set up the following equation. We will call the original wheel w.

439.6=0.56w

We divide both sides by 0.56

w=785

We divide by 3.14 to find the diameter.

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The radius of the first Ferris wheel is 125 ft.

Have a wonderful day! :D

6 0
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Molodets [167]

Answer:

297 and 298

Step-by-step explanation:

We are given a number 1189.

We have to divide this number by 4 and find the quotient that is the two estimates between which the quotient lies.

By rule for divisibility of 4, we have last two digits 8 and 9 , i.e.89 is not divisible by 4.

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i.e. lie between 297 and 298.

4 0
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