Answer:
Step-by-step explanation:
Let's call (as suggested)
p = the cost of one pizza
c = the cost of one cheeseburger
The Anderson Family ordered 2 pizzas and 4 cheeseburgers and paid $31.50, thus:
2p + 4c = 31.50 [1]
Next weekend, they ate at the same restaurant and ordered 3 pizzas and 2 cheeseburgers for $33.25, thus:
3p + 2c = 33.25 [2]
To know the cost of one pizza and one cheeseburger, we need to solve the system of equations defined by [1] and [2]
This is a square, and so all the sides will be the same measurements. Note that you are given an area, so you'll have to root the total area to get a side.
√400 = 20
One side's measurements is 20 in
hope this helps
f(x) = ax^2 - 4x + b
If x = -2 , 3 are solutions of zeros function f(x) then b = ?
If x = -2 then a(-2)^2 - 4(-2) + b = 0
4a + 8 + b = 0 (1st)
If x = 3. then a(3)^2 - 4(3) + b = 0
9a - 12 + b = 0 (2nd)
Subtract (2nd) and (1st)
4a + 8 + b = 0 (1st)
9a - 12 + b = 0 (2nd)
--------------------------
-5a + 20 = 0
-5a = -20
a = 4
Substitute a = 4 into 4a + 8 + b = 0 (1st)
4(4) + 8 + b = 0
16 + 8 = -b
b = -24
Answer is A) -24
Double check:
a = 4 and b = -24 so
f(x) = 4x^2 - 4x - 24
zero function:
4x^2 - 4x - 24 = 0
4(x^2 - x - 6) = 0
4(x - 3)(x + 2) = 0
x - 3= 0; x = 3
x = -2 = 0; x = -2
x = -2 , 3 are solutions of the function.
Answer:
Use Pythagorean.
The triangles have sides 2, 5 and c.
Answer:
D. y=2x-2
Step-by-step explanation:
The format for the equation of a line is y=mx+b, where m is the slope and b is the y-intercept of the line.
The slope of this line is 2
The y-intercept of this line is -2
Therefore, the equation for this line should look like y=2x-2
If you found this helpful, let me know by marking my answer as brainliest! Feel free to reach out with any questions. Hope this helped!