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NNADVOKAT [17]
3 years ago
13

I can't fail and no one has answered my previous questions so please help.

Mathematics
1 answer:
Afina-wow [57]3 years ago
8 0
When you know your equation f(x) and they want you to find f(-4), it means that they want to know what f(x) is worth when x=-4 Therefore, you only need to plug in you x in the equation f(x)=5x-2 f(-4)=5(-4)-2 =-20-2 =-22 (B)
You might be interested in
There are only chickens and pigs in Henry's Barn Henry counted a total of Sixteen animal heads and a total of 50 animal feet.How
raketka [301]

Answer:

9 pigs

Step-by-step explanation:

We have the following numbers of heads:

pigs (p) + chickens (c) = 16 animal heads (1)

And the following numbers of feet:

4p + 2c = 50 animal feet   (2)

From equation (1):

p = 16 - c (3)

By entering equation (3) into (2) we have:

4(16 - c) + 2c = 50

64 - 4c + 2c = 50

c = 7

Now, entering the value of c into equation (3) we have the next value of p:

p = 16 - c

p = 16 - 7

p = 9

Therefore, the number of pigs that Henry has is 9.

I hope it helps you!  

4 0
3 years ago
Jamar and Peggy live on opposite sides of a park. Peggy counted how many steps it takes her to get from her house to Jamar's hou
creativ13 [48]

Answer:

A.96.25 steps.  B. Approximately 37 steps shorter

Step-by-step explanation:

From Pythagoras theory,

Hyp² = Adj² + Opp²

Hyp² = 52² + 81²

Hyp² = 2704 + 6561

Hyp² = 9265

Hyp = √9265

Hyp = 96.25 steps

= 81 + 52 = 133 - 96.25

= 36.75 or approximately 37 steps shorter

7 0
3 years ago
Graph the linear equation. X = y + 5
Zina [86]
X = y + 5
-y + x - x = y - y  + x + 5
-y = x + 5
y = x - 5
6 0
3 years ago
Slope:<br><br><br> Y-Intercept <br><br> Please help
Aleksandr [31]

Answer:

The y intercept is 4.

7 0
3 years ago
Read 2 more answers
Please Answer As Soon As Possible, worth 74 Points.
Stels [109]
Hello!

A function is that y only has 1 solution for every x

-3x + 8 = y is a function because it only has one y value for every x

y = x^2 + 3 is a function because it has only one y value for every x

y^2 = x is not a function because it has two y values for x = 4

Hope this helps!
4 0
3 years ago
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