Wanna help me out?? Kinda need it anyway

Mathematics

2 answers:

Reptile [31]3 years ago

5 0

The answer would be -12

NARA [144]3 years ago

4 0

-12 is the answer you just plug in the numbers like it says and multiply

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Use the functions f(x) = 4x − 5 and g(x) = 3x + 9 to complete the function operations listed below.

vlada-n [284]

A. (f + g)(x) = f(x) + g(x) = 4x - 5 + 3x + 9 = 7x + 4

B. f.g (x) = f(x) * g(x) = (4x - 5)*(3x + 9) = 12x^2 + 36x - 15x - 45
= 12x^2 + 21x - 45

C Replace the x in f(x) by g(x):-
= 4(3x + 9) - 5
= 12x + 36 - 5
= 12x + 31

8 0

3 years ago

20 points.<br><br>Solve for a.

Hoochie [10]

Answer:

30 degrees

Step-by-step explanation:

The sum of exterior angles = 360 degree

102 + 73 + 67 + 88 + a = 360

330 + a = 360

a = 360 - 330

a = 30 degree.

HOPE THIS HELPED YOU

4 0

2 years ago

Read 2 more answers

How can 26n - 7m + 4 (10m—6m) be rewritten

sertanlavr [38]

Answer:

26m - (11m) 4m

Step-by-step explanation:

3 0

3 years ago

16. Solve for the angle x.<br> cos(¹/2x) = ¹/2

Basile [38]

Answer:

We know that ,

$\rightarrow \tt \cos( \frac{\pi}{3} ) = \frac{1}{2}$

So ,

$\: \rightarrow \tt \cos( \frac{1}{2}x ) = \cos( \frac{\pi}{3} ) \\ \\ \rightarrow \tt \frac{1}{2}.x = \frac{\pi}{3} \\ \\ \rightarrow \tt x = \frac{2\pi}{3}$

we can add 2 pi to it since there will be no change in the value

Also,

$\: \rightarrow \tt \cos( \frac{14\pi}{6} ) = \frac{1}{2} \\ \\ \\ \rightarrow \tt \frac{1}{2} x = \frac{14\pi}{6} \\ \\ \rightarrow \tt x = \frac{7\pi}{3}$