Answer:
x= 4 and y= 12
Step-by-step explanation:
solve by substitution
hope this helps :D
Answer:
I believe its 4
Step-by-step explanation:
Answer:
<u>D) x² - y = 10x + 25 + y</u>
Step-by-step explanation:
A relation only becomes a function if each x-value only has a single y-value as the answer.
<u>Evaluating</u>
- A and B cannot be the answers as each value will get 2 answers
- C will also not be the answer as y² means at least 2 answers will be given
- <u>D</u> is the best option as each inputted x-value will get an answer of a single y-value
9x < -27 or 4x > 36
9 9 4 4
x < -3 x > 9
x ∈ (-∞, 3) or (9, ∞)
Step-by-step explanation:
We can calculate the value of y by using the Euclidean theorem
y^2 = 20 × 4
y^2 = 80
y = 4√5