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Vlad1618 [11]
4 years ago
9

If f(x) = 5x + 40, what is f\x) when x = -5? -9 -8 7 15

Mathematics
2 answers:
Natasha2012 [34]4 years ago
6 0

Answer:

15

Step-by-step explanation:

f(x)=5x+40

f(x)=5(-5)+40

f(x)=-25+40

f(x)=15

kodGreya [7K]4 years ago
6 0

You must replace x with -5 and solve using the rules of PEMDAS (Parentheses, Exponent, Multiplication, Division, Addition, Subtraction) REMEMBER: IF NOT APPLICABLE TO THE EQUATION YOU MAY SKIP THAT STEP IN PEMDAS .

5(-5) + 40

Multiplication...

5 * -5 = -25

-25 + 40

Addition...

When adding a positive number with a negative number you will act as if you are subtracting the two numbers, then take the sign of the largest number. In this case the largest number is 40 and its sign is positive. Your answer will  have a posititve sign.

-25 + 40 ----> 40 - 25 = 15

-25 + 40 = 15

15

Hope this helped!

~Just a girl in love with Shawn Mendes

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➷Yes.

Explain: This is because if you feel normal, you might have a little bit of willpower to do something, which will effect the statistical outcome. if you are confident, you will have a higher statistical outcome. (Example: A sport game. Feeling: Normal, Confident, Random) If you feel random, you could get a really bad score or a really high score, but you don't know because it is random.

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6 0
4 years ago
Eric drove 113 miles on Monday. On Tuesday, he drove 33 miles less than Monday. How far did he drive both days?
Marat540 [252]
He drove 193 mile you subtract 33 from 113 which is 80 then add 80 and 113 together and you get 193
5 0
3 years ago
Read 2 more answers
GUESS AND CHECK
ladessa [460]

Answer:

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6 0
3 years ago
Scenario: Kevin is baking cupcakes for a fundraiser at his school. Yesterday, he prepared 30 cupcakes in 45 minutes. Today, he p
attashe74 [19]

a) As the constants are equal, the situation represents a proportional relationship.

b) The constant of 2/3 cupcakes per minute means that in a minute, 2/3 of a cupcake is made.

<h3>What is a proportional relationship?</h3>

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality.

In this problem, the constants for each situation are:

k = 30/45 = (30/15)/(45/15) = 2/3 = 20/30.

Since the constants are equal, the situation represents a proportional relationship.

The constant of 2/3 cupcakes per minute means that in a minute, 2/3 of a cupcake is made.

More can be learned about proportional relationships at brainly.com/question/10424180

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5 0
2 years ago
A girl drops a ball off a cliff into the ocean. The polynomial −8t2+350 gives the height, in feet, of the ball t seconds after i
postnew [5]

Answer:

318 feet.

Step-by-step explanation:

We have been given that a girl drops a ball off a cliff into the ocean. The polynomial h(t)=-8t^2+350 gives the height, in feet, of the ball t seconds after it is dropped from a 350 ft tall cliff. We are asked to find the height in feet after 2 seconds.

To find the height after 2 seconds, we will substitute t=2 in our given equation as:

h(2)=-8(2)^2+350

h(2)=-8(4)+350

h(2)=-32+350

h(2)=318

Therefore, the height will be 318 feet after 2 seconds.

5 0
3 years ago
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