Answer:
f(7)= 23
Step-by-step explanation:
since x equals 7, you will want to switch the variable with the exponent. you will multiply 3 by 7 and you will get 21. after that you should add 2 and get 23. idk if i gave the right equation but i hope this helps!
Answer:
.80
or
0.80
Step-by-step explanation:
80 is out of 100, which is other words is .80 or 0.80
Answer:
x=-3
y=3
Step-by-step explanation:
-27=-9x-18y equation 1
-5y-10x-15=0 equation 2
using equation 2 we have:
-10x -15 =5y
y= -2x -3 equation 3
using equation 3 in equation 1 we have:
-27=-9x-18(-2x -3)
-27= -9x +36x +54
-27-54 =27x
-81 = 27x
so we have:
x= -81/27
x=-3
y= -2(-3) -3
y= 6-3
y = 3
Answer:
b. exactly one solution
Step-by-step explanation:
-5(z+1)=-2z+10
(first, distribute the 5 into the parenthesis)
-5z-5=-2z+10
(next, move the variables to the left and constants to the right)
-5z+2z=10+5
(combine like terms)
-3z=15
(isolate to variable to find the solution)
z=-5
i hope this helps :)
Answer: First option is correct.
Step-by-step explanation:
Since we have given that
If the factored form is given by
Then its standard form will be given by
if factored form is given by
Then its standard form will be given by
Hence, only first option is correct.
