Answer:
f(-4)= -55
Step-by-step explanation:
We want to find f(x), or y, when x is equal to -4.
Therefore, we can substitute -4 in for x in the function.
f(x) = -2x^2 + 4x - 7
Substitute -4 in for x
f(-4) = -2(-4^2) + 4(-4) - 7
Evaluate the exponent
f(-4)=-2(16)+4(-4)-7
Multiply -2 and 16
f(-4)= -32+4(-4)-7
Multiply 4 and -4
f(-4)=-32-16-7
Subtract
f(-4)=-55
The length of the shorter side is 7 longer side is 12 7+7+12+12 is 38 and 7x12 is 84
Answer:
45 two digit odd numbers are possible.
Answer:
x = 16.67
Step-by-step explanation:
4x - 6 + 8x - 6 = 180
12x - 14 = 180
+ 14 + 14
12x = 194
/ 12 / 12
x = 16.67
Answer:
r= -d x -t + w
Step-by-step explanation:
d= (w-r)/2 multiply by t to get dt=w-r, the subract w to get dt-w=-r. divide by negative 1 to get -dx-t+w=r (the x means to multiply)
