2/3 + (-1/3) = 2/3 - 1/3 = 1/3
Answer:
The answer is A: y=7
Step-by-step explanation:
If you multiply 7 x 7 x 7 the answer would be 343.
Answer: Second option: (4,0) and (-9,0)
f(x)=x^2+5x-36
The x-intercepts of the graph of a function f(x) are the values of the variable x that makes f(x)=y equal to zero. To find these values we only have to equal f(x)=y to zero:
f(x)=y=0
x^2+5x-36=0
Factoring the polynomial:
(x+9)(x-4)=0
Using that if a b=0, then: a=0 or b=0
with a=x+9 and b=x-4
x+9=0 or x-4=0
Solving for x:
x+9-9=0-9 or x-4+4=0+4
x=-9 or x=4
Then the x-intercepts are the poitns (x,y)=(x,0):
(4,0) and (-9,0)
I’m not really good at explaining in words but I hope this picture of my work helps. (Sorry for sloppy writing)
Answer:
7
Step-by-step explanation:
Simply plug in 3 for x. 3 times 3 is 9 and 9 minus 2 is 7.
