Answer:
3) 4x² -1
Step-by-step explanation:
A quadratic equation is a 2nd-degree polynomial equation.
1) an exponential equation (the variable is in the exponent)
2) a cubic equation (degree = 3)
3) a quadratic equation
4) a linear equation (degree = 1)
Answer:
The reservations on Friday and Saturday were
Step-by-step explanation:
There were a total of 160 reservations during the week. There were 70 reservations on Friday and Saturday. 70 out of 160 is 43.75%.
So percent means parts out of 100 so
7%=7/100=0.7/10=0.07/1=0.07
so we want to find 12.50 +7% of 12.50
'of' can be translated as multiply
12.50+(0.07 times 12.5)=12.5+0.88=13.38
the total cost is 13.38
a shortcut is if you want to find cost+tax then
cost=1 and tax=0.07 so 1+0.07=1.07 so to find cost, just multply by 1.07
80x3/8=10 common factor. 10x5. And 10x3
50/30
30 boys
50 girls
