All categories

2 years ago

Helppppp meeeee!!!!!!!!!!!

Mathematics

1 answer:

DochEvi [55]2 years ago

6 0

Answer and Step-by-step explanation:

When it says (f + g)(x), it means that it wants you to add the functions together.

So, let's add them.

$(2x^2 + 6x - 4) + (5x^3 -6x^2-3)\\\\\\5x^3 - 4x^2 + 6x - 7\\\\\\\\\\\\\\5x^3 - 4x^2 + 6x - 7$ is the answer. (Answer choice B.)

#teamtrees #PAW (Plant And Water)

You might be interested in

9/20 - 1/4 Add or subtract. Write each sum or difference in simplest form. HELP!

Fynjy0 [20]

I just divided 9 by 20 and 1 by 4 then subtract 0.45-0.25 = 0.2

6 0

2 years ago

Philip writes 2 pages per hour. How many hours will Philip have to spend writing this week

lukranit [14]

Answer:

8 hours

Step-by-step explanation:

If he writes 2 pages a hour and needs 16 pages, then you would have to divide 16 by 2 which is 8.

To double check that, you can multiply 8 by 2 which is 16.

You answer is 5 hours.

3 0

3 years ago

Read 2 more answers

Linda calculated that the saucer for her teacup has an area of 50.24 square centimeters. What is the saucer's circumference?

Brilliant_brown [7]

Answer:

The saucer's circumference is 25.12 centimeter.

Step-by-step explanation:

Given:

Linda calculated that the saucer for her tea cup has an area of 50.24 square centimeters.

Use 3.14 for π.

Now, to find the saucer's circumference.

So, we get the radius first by putting the formula of area:

Area = 50.24 square centimeters.

Let radius be $r.$

$Area = \pi r^2.$

$Area = \pi\times r^2.$

As given we use 3.14 for π.

$50.24 = 3.14\times r^2.$

Dividing both sides by 3.14 we get:

$16=r^2.$

Using square root on both sides we get:

$4=r$

$r=4$

Thus, the radius = 4 centimeters.

Now, to get the circumference we put formula:

$Circumference=2\pi r$

$Circumference=2\times \pi \times r$

$Circumference=2\times 3.14\times 4$

$Circumference=25.12$

Circumference = 25.12 centimeter.

Therefore, the saucer's circumference is 25.12 centimeter.

3 0

3 years ago

What multiplies to -900 and adds to 5?

liq [111]

Xy = -900
x + y = 5

x + y = 5
x - x + y = -x + 5
y = -x + 5

xy = -900
x(-x + 5) = -900
  x(-x) + x(5) = -900
-x² + 5x = -900
-x² + 5x + 900 = 0
-1(x²) - 1(-5x) - 1(-900) = 0
  -1(x² - 5x - 900) = 0
-1 -1
x² - 5x - 900 = 0
x = -(-5) ± √((-5)² - 4(1)(-900))
  2(1)
x = 5 ± √(25 + 3600)
2
x = 5 ± √(3625)
2
x = 5 ± 5√(145)
2
x = 2.5 ± 2.5√(145)

  x + y = 5
2.5 ± 2.5 √(145) + y = 5
- (2.5 ± 2.5√(145) - (2.5 ± 2.5√(145)
y = 2.5 ± 2.5√(145)
  (x, y) = (2.5 ± 2.5√(145), 2.5 ± 2.5√(145))

The two numbers that add up to 5 and multiply to -900 are 2.5 ± 2.5√(145).

6 0

3 years ago

A graphic company charges 560 per hour for the work of its most senior graphic artists, $50 per hour for the work of a productio

Kruka [31]

A: 36x560+11x550+50x518=5

3 0

2 years ago