Answer:
10
Step-by-step explanation:
Note that
×
= a
Consider the following example
× 
= 10 × 10
= 100 ← the value inside the radical, thus
×
= 10
Answer:
214
Step-by-step explanation:
set bc = to cd and solve for x
then substitute x into one of the equations and solve --> you should get 73
multiply 73 by 2 and then subtract that from 360
you should get 214
Answer:
Step-by-step explanation:
(2x + 1)(ax + b) = 6x² - 5x + c
Expand the left side and put that half into standard form:
2ax² + 2bx + ax + b = 6x² - 5x + c
2ax² + (2b + a)x + b = 6x² - 5x + c
So now look at the x terms. We have "2a" x² on left and 6 x² on right, so:
2a = 6
a = 3
Then look at the x terms, those coefficients will then be equal:
2b + a = -5
2b + 3 = -5
2b = -8
b = -4
and finally, then non-x terms are equal:
b = c
-4 = c
so:
a = 3, b = -4, c = -4
Answer:
9 books
Step-by-step explanation: 10- 1 = 9. Take away is subtract