1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miss Akunina [59]
3 years ago
5

If f(x) = 5x + 40, what is f(x) when x = -5?

Mathematics
1 answer:
Makovka662 [10]3 years ago
6 0

Answer:

f(-5) = 15

Step-by-step explanation:

f(x)=5x+40

plug in x as -5

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

multiply 5 by -5

-25+40

add -25 to 40

15

You might be interested in
Identify the equation in slope-intercept form for the line with the given slope that contains the given point. Slope =2; (1,4)
Elina [12.6K]

Slope-intercept form: y=mx+b, with m being the slope and b being the y-intercept. First, plug in the given slope into the slope form:

y=2x+b

Now, given the coordinates (1,4), you can plug the coordinates into the equation for x and y respectively, to solve for b (the y-intercept).

4=2(1)+b

4=2+b

Subtract 2 from both sides.

2=b

The y-intercept is 2.

Now, plug that into the equation:

y=2x+2

The answer is y=2x+2.

I hope this helps :)

3 0
3 years ago
Find the absolute value
Ganezh [65]

Answer:

11

Step-by-step explanation:

|11| is a module, the numbers inside a module are equal to positive ones so
|11| and |-11| are both equal to 11

5 0
2 years ago
Read 2 more answers
The school team has 80 swimmers. The ratio of seventh-grade swimmers to all swimmers is 5 : 16. Write a proportion that gives th
ElenaW [278]
<h2>(25) 7th Grade Swimmers</h2><h2>25:80</h2>
8 0
2 years ago
Joan pays 456.25 monthly on her mortgage. If her annual insurance premium is 1,560 and her annual real estate tax is 1,890, what
defon
The combined payment is 743.75.

The annual amount of insurance is 1560.  Dividing this by 12 gives us the monthly amount paid:
1560/12 = 130.

The annual real estate taxes are 1890.  Dividing this by 12 gives us the monthly amount paid:
1890/12 = 157.50

We add these to the monthly mortgage payment to find the total amount:
456.25+130+157.50 = 743.75
5 0
3 years ago
Determine the type and number of solutions of −4x2 − 3x + 7 = 0.
Kaylis [27]

Answer:

Step-by-step explanation:

You have to use the discriminant for this. If the quadratic is -4x^2-3x+7, then

a = -4, b = -3, and c = 7. The formula for finding the discriminant is

D=b^2-4ac which comes from the quadratic formula, but without the square root sign. Filling in:

D=(-3)^2-4(-4)(7) which simplifies down to

D = 9 + 112 so

D = 121. This is a perfect square, so the solutions will be 2 real. Just so you know, you will NEVER have a solution like the one offered in the third choice down. If you have one imaginary root, you will ALWAYS have a second by the conjugate rule.

7 0
3 years ago
Other questions:
  • Find surface area of shape.
    5·1 answer
  • Which statement best describes the area of Triangle ABC shown below
    11·2 answers
  • I need to find the surface of the figure
    14·2 answers
  • What number must be added to x^2+6x+7 to form a perfect square
    7·1 answer
  • A rectangle is 6 centimeters long and 4 centimeters wide. What is the area of the rectangle?
    15·2 answers
  • Please help me answer the question that’s right next to the red Transportation. Please explain how to solve as well.
    15·1 answer
  • When x = 4, y = 1<br> x^2 + 3xy – 7y^2
    11·1 answer
  • Pleeease help meeeeee
    9·1 answer
  • What fraction has the greatest value? ​
    8·2 answers
  • Please lend a hand I am very stressed out, thank you.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!