Answer:
1 - 2√7
Step-by-step explanation:
( 4 + √7)(2 - √7)
Open the brackets with
( 4+ √7)
= 4( 2 - √7) + √7(2 - √7)
= 8 - 4√7 + 2√7 - √49
= 8 ( -4 + 2)√7 - √49
= 8 - 2√7 - 7
= 8 - 7 - 2√7
= 1 - 2√7
Answer:
c times 6 equals 96
Step-by-step explanation:
Answer:
r = 13
Step-by-step explanation:
As the vertically opposite angles are equal,
8r + 6 = 9r - 7
<u>Now you can find the value of r.</u>
8r - 9r = -6 - 7
-r = -13
r = 13
Hope this helps you :-)
Let me know if you have any other questions :-)
Answer:
Domain: (-∞, ∞)
General Formulas and Concepts:
<u>Algebra I</u>
- Domain is the set of x-values that can be inputted into function f(x)
Step-by-step explanation:
According the the graph, we see that our x-values are spanning forever in both directions. Therefore our domain is:
(-∞, ∞) or -∞ < x < ∞
Answer:
1:2
Step-by-step explanation:
