2 years ago

Look below for problem

Mathematics

1 answer:

kap26 [50]2 years ago

4 0

Answer:

Step-by-step explanation:

(3x^2 + 2x) + (-x + 9) Remove the brackets

3x^2 + 2x - x + 9 Watch out for the sign in front of the x

3x^2 + x + 9 No more reduction can take place.

(-2x^2 + 5x - 7) + (3x + 7) Remove the brackets

-2x^2 + 5x - 7 + 3x + 7

-2x^2 + 5x + 3x - 7 + 7 Combine

-2x^2 + 8x The 7s cancel -- they are of opposite signs.

No more reduction can take place. The powers on the variables have to be equal before any cancelation can take place.

You might be interested in

a hand woven rectangular rug measure x ft long and 2 4/5 ft wide. write an expression to represent the perimeter of the rug.

VARVARA [1.3K]

Since it's perimeter, you're adding. the expression would be x + 2 4/5

3 0

3 years ago

Which is the equation of the given line?

aleksley [76]

I believe this would be C. y= -3.

3 0

4 years ago

Read 2 more answers

Please help to solve the 4th question

vichka [17]

The answer is 1/2 time

8 0

3 years ago

Read 2 more answers

Can someone please help me to find the remainder when f(x) is divided by (x^2-4)?

yuradex [85]

Answer:

Step-by-step explanation: Given : f(x)=x

−3x

f(2)=(2)

−3(2)

=16−12+4=8

8 0

3 years ago

A ladder 10 feet long rests against a vertical wall. Let θ be the angle between the top of the ladder and the wall, and let x be

Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

Given:

Length of ladder, y = 10 ft

θ = π/3 rad

Using cosine rule,

Sin θ = opposite/hypotenuse

Sin θ = x/y

Sin θ = x/10

Differentiating both sides with respect to dθ,

10 × cos θ × dθ = dx

10 cos θ = dx/dθ

dx/dθ = 10 × cos π/3

= 5 ft/radians.

5 0

3 years ago