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diamong [38]
3 years ago
13

Plz help lol 400N + 20 <18, 000

Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Ans>18000

Step-by-step explanation:

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If f(x) = 2x - 9, which of the following are correct? Select all that apply. f(-1) = -11 f(2) = 5 f(3) = -3 f(0) = -9 f(-3) = 15
Yuri [45]

f(-1) = -11 and f(3) = -3 . these functions are true .

What does a math function mean?

  • A relationship between a group of inputs and one output each is referred to as a function.
  •  A function is an association between inputs in which each input is connected to precisely one output.
  • A domain, codomain, or range exists for every function. f(x), where x is the input, is a common way to refer to a function.
  • In mathematics, a function is an expression, rule, or law that establishes the relationship between two variables (the dependent variable).

given function  f(x) = 2x - 9

   f(-1) = -11 ⇒ x = -1 put in function

                       f( -1 ) = 2 * -1 - 9  ⇒ - 11

    f(2) = 5   ⇒ x = 2 put in function

                    f( 2 ) = 2 * 5 - 9 = 1

    f(3) = -3  ⇒  x = 3 put in function

                     f ( 3 ) = 2 * 3 - 9 = -3

       f(-3) = 15   ⇒  x =  -3 put in function

                     f( -3) = 2 * -3 - 9 = - 15

Learn more about function

brainly.com/question/21145944

#SPJ13

3 0
1 year ago
Find each percentage of 75 explain your reasoning 1.what Is 10%of 75% 2. What is 1% of 75%
kozerog [31]
1. 7.5 because Y/75 X 10/100 = 750 /100 = 7.5
2. .75 because Y/75 X 1/100 = 75/100 = .75
4 0
3 years ago
Find the value of p for which the given pair of linear equations have infinitely many solutions for 4X + 3 Y - 4 is equals to ze
tino4ka555 [31]

Answer:

x=8/3

y= -20/9

Step-by-step explanation:

4X + 3Y -4 =0

Linear egquations must in

x + y = 0

so 4X + 3Y =4

THEN

3X + 9Y = - 12

next use calculator to solve it or you can use traditional way

4 0
3 years ago
The amount of cashews in a mixture of nuts is 3 times the amount of almonds. Let C represent the amount of cashews in the mixtur
arsen [322]

Answer:

4.5 lb

Step-by-step explanation:

1.5*3 is 4.5

8 0
2 years ago
Given trapezoid KLMN with midsegment EF, where KL = 4 and MN = 7, what is the length of EF?​
TEA [102]

Answer:

EF= 5.5

Step-by-step explanation:

7 + 4 = 11

11 divided by 2 = 5.5

3 0
2 years ago
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