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Black_prince [1.1K]
3 years ago
7

HELP PLEASE!!! URGENT!!!

Mathematics
1 answer:
Hatshy [7]3 years ago
3 0
F(x) = 3x + 7.....g(x) = 4x - 2

A. (f + g)(x)
     3x + 7 + 4x - 2
     7x + 5 <====

B. (f * g)(x)
    (3x + 7)(4x - 2) =
     3x(4x - 2) + 7(4x - 2) =
    12x^2 - 6x + 28x - 14
    12x^2 + 22x - 14 <===

C. f[g(x)]
     3(4x - 2) + 7 =
     12x - 6 + 7 =
     12x + 1 <===
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Find the radian measure of the angle with the given degree measure. Round your answer to three decimal places.
kaheart [24]

Answer:

-0.663

Step-by-step explanation:

-38/180 × pi = -0.6632251158

3 0
3 years ago
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For some postive value of Z, the probability that a standardized normal variable is between 0 and Z is 0.3770. The value of Z is
Talja [164]

Answer:

1.16

Step-by-step explanation:

Given that;

For some positive value of Z, the probability that a standardized normal variable is between 0 and Z is 0.3770.

This implies that:

P(0<Z<z) = 0.3770

P(Z < z)-P(Z < 0) = 0.3770

P(Z < z) = 0.3770 + P(Z < 0)

From the standard normal tables , P(Z < 0)  =0.5

P(Z < z) = 0.3770 + 0.5

P(Z < z) =  0.877

SO to determine the value of z for which it is equal to 0.877, we look at the

table of standard normal distribution and locate the probability value of 0.8770. we advance to the  left until the first column is reached, we see that the value was 1.1.  similarly, we did the same in the  upward direction until the top row is reached, the value was 0.06.  The intersection of the row and column values gives the area to the two tail of z.   (i.e 1.1 + 0.06 =1.16)

therefore, P(Z ≤ 1.16 ) = 0.877

8 0
3 years ago
Write the mixed number 5 2/25 as a percent.
Nataliya [291]

Answer:

I'm assuming it's like this : 5*2/25 which will be 0.4, which is 40%

3 0
2 years ago
Patrick made a cake for his mother's birthday. He started making the
zlopas [31]

Answer: 11:15 AM

Step-by-step explanation:

9:00 plus an hour and 15 minutes (75 minutes) makes it 10:15.  Then bake for an hour (60 minutes), makes it 11:15

4 0
3 years ago
I need help ? which linear function is represented by the graph?​
PilotLPTM [1.2K]
<h3>Answer: f(x) = (-1/2)x+1, choice B</h3>

=================================================

Explanation:

The diagonal line passes through 1 on the vertical y axis. So the y intercept is b = 1. This means the location of the y intercept is (0,1).

Start at (0,1) and move down 1 and to the right 2 to arrive at (2,0). This is another point on the diagonal line. The motion of "down 1 and right 2" is effectively the slope

slope = rise/run = -1/2

rise = -1, run = 2

The rise being negative means we have gone downhill as we move to the right.

With m = -1/2 as the slope and b = 1 as the y intercept, we go from y = mx+b to y = (-1/2)x+1

The last thing to do is replace y with f(x) to get f(x) = (-1/2)x+1 as the final answer.

4 0
3 years ago
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