Answer:
Given:f(x)=2x^2-3x-1
Then,f(-1)=2(-1)^2-3(-1)-1
f(-1)=2(1)+3-1
f(-1)=5-1
f(-1)=4
Step-by-step explanation:
Answer:
1/3
Step-by-step explanation:
transfer 4 to the other side then the sign will be minus
then divide 1 by 3
x=15
multiply each side by 3/2
x becomes isolated, 10*1.5=15
x=15
Answer:
7/20 is the scale factor
Step-by-step explanation:
We can see that Hexagon JKLMNO is bigger than Hexagon PQRSTU. This means that the scale factor is less than one.
LK is similar to QR.
QR/LK
7/20 is the scale factor.
Answer:
(27x3+9x2-3x-10)/(3x-2)
Final result :
9x2 + 9x + 5
Step by step solution :
Step 1 :
Equation at the end of step 1 :
Step 2 :
Equation at the end of step 2 :
Step 3 :
27x3 + 9x2 - 3x - 10
Simplify ————————————————————
3x - 2
Checking for a perfect cube :
3.1 27x3 + 9x2 - 3x - 10 is not a perfect cube