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Taya2010 [7]
3 years ago
8

PLEASE HELP What is the value of f(4)?

Mathematics
1 answer:
yaroslaw [1]3 years ago
5 0
The answer for this question would be 2 I think
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The temperature in the morning is 18.6°C. By noon the temperature rises 8.5°C.
Harman [31]

Answer:

27.1°C

Step-by-step explanation:

7 0
3 years ago
Kevin buys four folding chlairs. Beach chair costs $13.50. the sales tax is 6.5%. what is the amount of sales tax for Kevin's pu
frozen [14]

Answer:

Amount of sales tax = $3.51

Step-by-step explanation:

$13.50 x 4 = $54

convert 6.5% to 0.065 ===> 6.5/100 = 0.065

$54 x 0.065 = $3.51

4 0
3 years ago
What are x-intercepts of the function f(x) = x2 + 4x + 3
adell [148]

Answer:

x-intercept(s): ( -1, 0 ) , ( -3, 0 )

y-intercept(s): ( 0, 3)

5 0
3 years ago
Use elimination to solve each system.
Cerrena [4.2K]

Answer:

$3 and $2

Step-by-step explanation:

let p represent popcorn and d drinks , then

2p + 3d = 12 → (1)

3p + 5d = 19 → (2)

multiplying (1) by 3 and (2) by - 2 and adding will eliminate p

6p + 9d = 36 → (3)

- 6p - 10d = - 38 → (4)

add (3) and (4) term by term to eliminate p

0 - d = - 2

- d = - 2 ( multiply both sides by - 1 )

d = 2

substitute d = 2 into either of the 2 equations and solve for p

substituting into (1)

2p + 3(2) = 12

2p + 6 = 12 ( subtract 6 from both sides )

2p = 6 ( divide both sides by 2 )

p = 3

Popcorn costs $3 and a drink costs $2

7 0
3 years ago
Five workers together can build a road in 20 days. Suppose every worker works at the same rate. Three workers work on the road f
Scilla [17]

Answer:

5 days

Step-by-step explanation:

This problem is an inverse proportion case. Having two variables: number of workers and time (in days); when we increase the number of workers, the time needed decreases; vice versa. Therefore, we can use the multiplication method: (workers * time) will always stay constant.

Let's say the time (in days) needed by the eleven workers is t,

5*20 = (3*10) + (14*t)

100 = 30+14t

70 = 14t

5 = t

It will take the eleven-workers 5 more days to finish the road.

8 0
2 years ago
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