All categories

3 years ago

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

Mathematics

2 answers:

Natasha2012 [34]3 years ago

6 0

Answer:

Step-by-step explanation:

f(x)=5x+40

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

f(x)=-25+40

f(x)=15

kodGreya [7K]3 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

Hope this helped!

~Just a girl in love with Shawn Mendes

You might be interested in

Kinda left explainitory but I need help with finding the base

almond37 [142]

Answer:

6.4 cm

Step-by-step explanation:

Area of triangle = 17.28 cm²

$\frac{1}{2}*base *altitude = 17.28\\\\\frac{1}{2}*base*5.4=17.28\\\\base = 17.28*\frac{2}{5.4}\\\\base= 3.2*2\\\\base = 6.4 cm$

5 0

3 years ago

An arrow on a spinner is spun 250 times. Some of the results are shown below. The relative frequency of landing on a 4 is the sa

N76 [4]

Answer:

11/50

Step-by-step explanation:

The frequency numbers for landing on 1, 2, and 3 are:

25, 53, 62.

We add them up to get: 25 + 53 + 62 = 140

Since 250 spins were made, and 140 of them landed on 1, 2, or 3, then

250 - 140 = 110,

so 110 landed on 4 or 5.

We are told the numbers of spins landing on 4 and 5 are equal, so

110/2 = 55,

so the spinner landed 55 times on 4 and 55 times on 5.

relative frequency = 55/250 = 11/50

5 0

3 years ago

What is the common difference for the sequence shown below?

Alex Ar [27]

It is B because for every point going down, there is 3 to the left and so it is 1/3 and it has to be negative because its going left

4 0

3 years ago

Read 2 more answers

Find the total amount due on a simple-interest loan if the principal is $3000 with a rate of 5% for 10 years.

Korolek [52]

$\bf \qquad \textit{Simple Interest Earned Amount}\\\\
A=P(1+rt)\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to& \$3000\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
t=years\to &10
\end{cases}
\\\\\\
A=3000(1+0.05\cdot 10)\implies A=3000(1.5)$

3 0

4 years ago

Can someone help me with the question?

vladimir2022 [97]

Corndogs broo likeee everyone knows this

5 0

3 years ago