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Akimi4 [234]
3 years ago
9

Given f (x) =2x-3 what is f(-15) A. -16 B. -13 C. 7 D. 30

Mathematics
1 answer:
Murljashka [212]3 years ago
5 0
Letter d is the answer.
You might be interested in
6C + 47M=893.50<br> 25C + 22M=527.86
Olenka [21]

Answer:

C = 4.94   M = 18.38

Step-by-step explanation:

the easiest way is to graph both equaitons and see where they intersect,

see the image

or solve by substitution

6C + 47M=893.50           C = (893.50 - 47M)/6

25C + 22M=527.86

25((893.50 - 47M)/6)  + 22M = 527.86

25/6 [(893.50) - 47M] + 22M = 527.86

25/6 [ - 47M] + 22M = 527.86 - 25/6 [(893.50)

22M - 25(47M)/6  = -3195.06

22M - 195.83M  = -3195.06

      -173.83M   =   -3195.06

                 M  =  18.38

C = (893.50 - 47(18.38)/6

C = 4.94

6 0
3 years ago
Find the particular solution that satifies the differential equation and the initial condition. f"(x) = x2 f'(0) = 8, f(0) = 4
viva [34]

Answer:

f(x) = x^4/12 + 8x + 4

Step-by-step explanation:

f"(x) = x^2

Integrate both sides with respect to x

f'(x) = ∫ x^2 dx

= (x^2+1)/2+1

= (x^3)/3 + C

f(0) = 8

Put X = 0

f'(0) = 0+ C

8 = 0 + C

C= 8

f'(x) = x^3/3 + 8

Integrate f(x) again with respect to x

f(x) = ∫ (x^3 / 3 ) +8 dx

= ∫ x^3 / 3 dx + ∫8dx

= x^(3+1) / 3(3+1) + 8x + D

= x^4/12 + 8x + D

f(0) = 4

Put X = 0

f(0) = 0 + 0 + D

4 = D

Therefore

f(x) = x^4 /12 + 8x + 4

5 0
3 years ago
Fast-Food Bills for Drive-Thru Customers A random sample of 49 cars in the drive-thru of a popular fast food restaurant revealed
sergeinik [125]

Answer:

sample mean:: 17.92

ME = z*s/sqrt(n) = 1.8807*6.35/sqrt(47) = 1.7421

------------------------

Step-by-step explanation:

6 0
3 years ago
Gina has 5 2/6 feet of silver ribbon and 2 4/6 of gold ribbon
topjm [15]

Answer:

5 2/6 + 2 4/6 = 8

Step-by-step explanation:

So Gina has 8 feet of ribbon in total.

I hope this is what you were asking for!! :)

Have a good day!

Brainliest PLEASE!!?!?!?!??!?!!?!!?!?!?

8 0
3 years ago
How many shapes did you put together to make 3/2
ella [17]
You put 3 shapes together I believe
5 0
3 years ago
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