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Vsevolod [243]
2 years ago
14

Given that f(x) = x² + 3x 28 and g(x) = x + 7, find f(x) + g(x) and

Mathematics
1 answer:
ozzi2 years ago
7 0

Answer:

f(x) + g(x) = x^2 + 4x + 35

Step-by-step explanation:

Add like terms from f(x) and g(x):

f(x) + g(x) = x^2 + 3x + 28 + x + 7, or

f(x) + g(x) = x^2 + 4x + 35

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If f(x) = -3x - 5 and g(x) = 4x - 2, find (f - g)(x).
ratelena [41]

Answer:

  A.  (f-g)(x) = -7x -3

Step-by-step explanation:

(f -g)(x) = f(x) -g(x) = (-3x -5) -(4x -2)

  = -3x -5 -4x +2

  = -3x -4x -5 +2

  (f -g)(x) = -7x -3

3 0
2 years ago
Mike withdrew $32 from his bank account. The transaction slip said his balance was $289.14. What was his previous balance?
Temka [501]
<span>His previous balance was $321.14
289.14 + 32 = 321.14

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4 0
3 years ago
Use the rewritten formula to find the width of a rectangle with an area of 42 square inches and a length of 16.8 inches.
Leviafan [203]
Length * Width = Area

Width = Area / Length

W = 42 / 16.8

W = 2.5 inches
4 0
3 years ago
Read 2 more answers
Please help I have 30 mins
Vladimir79 [104]

Answer:  0.6 in 10 % ; 0.4 in 15 %

Step-by-step explanation:

1. (x*10%) + (y*15%)/ x+y=12%

2. x+y = 1  x= 1-y

(0.1x + 0.15y/ x+y= 12/100) * 100

(10x + 15y/x+y = 12)*(x+y)

10x+15y= 12x + 12y

-2x=-3y

2x = 3y   2(1 - y)= 3y

2-2y=3y   2= 5y

y= 0.4

x= 0.6

4 0
2 years ago
What is the mean, medium, mode of 54,220
irina [24]

Answer:

Mean: 16.75

Median: 15.5

Mode: 13

Range: 16

Minimum: 9

Maximum: 25

Count n: 16

Sum: 268

Step-by-step explanation:

hope this helps!

7 0
2 years ago
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