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NemiM [27]
3 years ago
11

HELP ASAP PLEASE.

Mathematics
1 answer:
garri49 [273]3 years ago
3 0

I believe the answer is C.

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Jakob is asking to simplify the expression -3a + 4b + 5a + (-7b).
garik1379 [7]

Answer:

B. Commutative

Step-by-step explanation:

He can do that because it's a sum

3 0
3 years ago
Read 2 more answers
[Function Composition] could someone help me with this answers or show work either is fine
zavuch27 [327]

Answer:

21

Step-by-step explanation:

Given the following expressions

f(x) = x³-2x

g(x) =-x-2

We are to find (fog)(-5)

fog = f(g(x))

f(g(x)) = f(-x-2)

Replace x with -x-2 in f(x)

f(-x-2) = (-x-2)³-2(-x-2)

f(-x-2) = (-x-2)³+2x+4

fog = (-x-2)³+2x+4

Substitute x = -5 into the result

fog(-5) = (-x-2)³+2x+4

fog(-5) = (-(-5)-2)³+2(-5)+4

fog(-5) = (5-2)³-10+4

fog(-5) = 3³-6

fog(-5) = 27-6

fog(-5) = 21

Hence the required result of the composite function is 21

8 0
3 years ago
Evaluate the function: f(x)= 2x+5, for x=3
JulijaS [17]
Replace X with 3 and simplify. The answer you would get is 11.
8 0
3 years ago
Read 2 more answers
Please help I’ll give brainiest!<br><br> Make sure to tell me steps by steps!:D
asambeis [7]

Answer:

see below

Step-by-step explanation:

h(x) = 2x-10

Let x=3

h(3) = 2*3 -10

      = 6-10

      =4

Let x=-3

h(-3) = 2*-3 -10

      = -6-10

      =-16

6 0
3 years ago
A farmer is selling apples from his orchard. He uses the equation c = 1.6p to calculate the total cost, c, for every pound of ap
LenKa [72]
A) a customer would pay $1.60 for 1 pound of apples. (To solve, plug in “1” for “p” and find c))

B) 8.5 pounds of apples would cost $13.60. (To solve, plug in 8.5 for p and find c)

C) If a customer pays $5.20, they will have purchased 3.25 pounds of apples. (To solve, plug in 5.2 for c and solve for p)

Have a great day!
3 0
3 years ago
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