Answer:
Step-by-step explanation:
The zero (root) of a function is any value of the variable that will produce an answer of zero. Graphically, the real zero of a function is where the graph of the function crosses the x-axis.
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f(x) = x³ + 3x² - x - 3
f(-3) = ( - 3 )³ + 3( - 3 )² - ( - 3 ) - 3 = 0
f(-1) = ( - 1 )³ + 3( - 1 )² - ( - 1 ) - 3 = 0
f(1) = ( 1 )² + 3( 1 )² - ( 1 ) - 3 = 0
Answer:
x=7, y= 8
Step-by-step explanation:
x+y=15
x+2y=23
Subtract the first equation from the second equation to eliminate x
x+2y=23
-x-y=-15
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y = 8
Now we can find x
x+y = 15
x+8 = 15
Subtract 8 from each side
x+8-8=15-8
x = 7
1/3b+1/3c is the expression assuming bikes are counted as vehicles
Answer:
pretzels = 10
drinks = 6
Step-by-step explanation:
Let d = number of drinks
p = number of pretzels
4d+ 4.75p = 71.50
d+p = 16
Solving this for d
d = 16-p
Substituting this into the first equation
4(16-p)+ 4.75p = 71.50
Distribute
64 - 4p +4.75p = 71.50
Combine like terms
64 +.75p = 71.50
Subtract 64 from each side
64 -64 +.75p = 71.50-64
.75p = 7.5
Divide each side by .75
.75p/.75 = 7.5/.75
p =10
Now we can find the number of drinks
d = 16-p
16-10
6
Answer:
1 foot?
Step-by-step explanation:
You subtract 13 from 12 to get the base divider.
