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attashe74 [19]
3 years ago
13

HELPPPPP PLEASEEEEEEEE I BEG YOU!!! SCHOOL IS ENDING SOON

Mathematics
2 answers:
Mars2501 [29]3 years ago
6 0

Answer:

option c 1000

Step-by-step explanation:

...................

postnew [5]3 years ago
4 0

Answer:

I think it is B or C but I'm not sure

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Kara is training for a 5 kilometer race. On the first day, she runs 0.75 kilometer What percent of the total distance does she r
svetoff [14.1K]

Answer:15 percent

Step-by-step explanation:

(.75) / 5 = 3/20 = 15/100 = 15%

8 0
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Is 1 bigger then 1.625 just asking
Ostrovityanka [42]
Yes it is, any decimal after the number one will be bigger than one
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8 0
3 years ago
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For f(x) = 5x and g(x)= x + 9, find
Bad White [126]

Answer:

  • (fog)(x)  = 5x+45
  • (gof)(x)   = 5x+9
  • (fog)(3) = f(g(3)) = f(12) = 60    

Step-by-step explanation:

Given

  • f(x) = 5x
  • g(x) = x + 9

Finding (fog)(x)

(fog)(x)  = f(g(x))

(fog)(x)  = f(x+9)

(fog)(x)  = 5(x+9)             ∵ substitute x as x+9 in the f(x)

(fog)(x)  = 5x+45

Finding (gof)(x)

(gof)(x) = g(f(x))

(gof)(x)  = g(5x)

(gof)(x)   = 5x+9                 ∵ substitute x as 5x in the g(x)

Finding (fog)(3)

(fog)(3) = f(g(3))

substitute x = 3 in the g(x)=x+9

g(x) = x+9

g(3) = 3+9

g(3) = 12

so

(fog)(3) = f(g(3)) = f(12)

now substitute x = 12 in  f(x) = 5x

f(x) = 5x

f(12) = 5(12)

f(12) = 60

Thus,

(fog)(3) = f(g(3)) = f(12) = 60

5 0
3 years ago
Factor trinomial by grouping : 10x^2-9x+2​
Angelina_Jolie [31]

Answer:

(2x - 1)(5x - 2)

Step-by-step explanation:

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term, that is

product = 10 × 2 = 20 and sum = - 9

The factors are - 5 and - 4

Split the middle term using these factors

10x² - 5x - 4x + 2 (factor the first/second and third/fourth terms by grouping )

= 5x(2x - 1) - 2(2x - 1) ← factor out (2x - 1)

= (2x - 1)(5x - 2)



8 0
3 years ago
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