Answer:
Two-Step Addition
Two-Step Subtraction
Subtracting from 1,000
Doubling and Halving
Multiplying by Powers of 2
Multiplying by 9
Multiplying Even Numbers by 5
Multiplying Odd Numbers by 5
Squaring a Two-Digit Number that Ends with 1
these all can help you
Step-by-step explanation:
It's a distance of 16 feet between the tour guide and the diver
Answer:
hi
Step-by-step explanation:
We can solve this problem using discriminant.
x^2-4x-12's discriminant is
(-4)^2-4*-12=16+48 which is clearly larger than 0
This means that it crosses over the axes 2 times.
In case you don't know what discriminant is, its in equation ax^2+bx+c
the discriminant is b^2-4ac.
If its positive it has 2 crosses with x axis, if negative then 0 crosses, if 0 then 1 cross.
Hope this helped at least a little bit :D