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melomori [17]
3 years ago
11

If f(x)=3x-2 and g(x)=2x+1, find (f-g)(x)A. x-3B. 5x-3C. 5x-1D. 3-x​

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0

Answer:

A. x-3

Step-by-step explanation:

f(x)=3x-2 and g(x)=2x+1

(f-g)(x) = 3x-2  - (2x+1)

           Distribute the minus sign

(f-g)(x) = 3x-2  - 2x-1

       Combine like terms

           = x -3

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N x 50 = 5,000. Explain your solution
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In order to figure out what N is you have to isolate it by dividing by 50 on both sides as shown below:
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3 years ago
A radioactive substance decays at a rate of 3.4% per day. If it starts at 200 grams, how
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Answer: 9

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Since the percent is decaying, you subtract 3.4 from 100, which gets you 96.6

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3 years ago
Please help! It would be very much appreciated :)
Trava [24]

Answer:

  1. Cos 45=6/x

x=6/cos 45=6√2

x=6√2

tan 45=y/6

y=tan45 ×6

y=6

2.

sin 60=y/10

y=sin60×10

y=5√3

again

Cos 60=x/10

x=½×10

x=5

3.

Sin 45=x/5

x=1/√2×5 or

x=5√2/2

again

y=5√2/2 or 5/√2[base angle of right angled isosceles triangle]

4.

Sin 30=8/x

½×x=8

x=8*2

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again

cos 30= y/x

√3/2×16=y

y=8√3

5.

sin 60=7/x

x=7/[√3/2]

x=14/√3 or 14√3/3

again

cos 60=y/x

½×14√3/3=y

7√3/2=y

y=7√3/2

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7 0
3 years ago
Evaluate and simplify sin (-15º).
olga55 [171]
Note:

sin(-θ) = -sinθ

sin(-15°) = -sin15°              Use a calculator

sin(-15°) = -sin15°  = -0.2588

sin(-15°) = -0.2588
7 0
3 years ago
A) {y=2x
sladkih [1.3K]

We can see that

both lines intersects at origin

so, the solution is x=0 and y=0

now, we will check each options

option-A:

y=2x

y=-4x

now, we can set them equal

and then we can solve for x

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now, we can find y

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so, solution is x=0 and y=0

so, this correct...........Answer


5 0
3 years ago
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