2 years ago

F(x) = -2 and g(x) = 2x² + x-3, find (f +g)(x) .

Mathematics

1 answer:

tekilochka [14]2 years ago

8 0

Answer:

2x^2 + x - 5

Step-by-step explanation:

(f+g)(x)=f(x)+g(x)=-2+2x^2 + x-3=2x^2 + x - 5

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A ramp is 35 ft long rises to a platform. The bottom is 15 ft from the foot of the ramp. Find x, the angle of elevation of the r

sineoko [7]

Answer:

The angle of elevation of the ramp is 64.60°

Step-by-step explanation:

Given;

length of the ramp, L = 35 ft

distance of the platform to the foot of the ramp, d = 15 ft

The length of the ramp forms the hypotenuse side of this right angled triangle;

The angle of elevation of the ramp is in angle between the hypotenuse and adjacent side of the triangle.

Cos x = adjacent / hypotenuse

Cos x = 15 / 35

Cos x = 0.4286

x = Cos⁻¹ (0.4286)

x = 64.62

x = 64.60°

Therefore, the angle of elevation of the ramp is 64.60°

4 0

3 years ago

the 2nd to 6th digits of the number 'b'. The number 'a': a.=.8381277236048455262835343009097967569917320013149981038679556930339

sattari [20]

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3 years ago

For what value of x do s 4^x=(1/8)^x+5

andrew-mc [135]

Answer:

x=1.17

Step-by-step explanation:

3 0

3 years ago

0.135 written as a fraction is

lbvjy [14]

Answer:

27/200

Step-by-step explanation:

Hope it helps

8 0

2 years ago

Read 2 more answers

Need to show a 5 step problem on how to get the answer. Using x and y

ZanzabumX [31]

Answer: $5.64

Step-by-step explanation:

Let x represent 1 box of batteries

Let y represent 1 case of batteries

Given: 14x = 3y

Given: 158 = 14x + 3y

Use substitution: 158 = 14x + 14x

Simplify: 158 = 28x

Divide by 28: 5.64 = x

4 0

3 years ago