F(x) = 3x² - 12
Finding where the graph crosses the axes will help us to determine the correct graph
When x = 0,
f(0) = 3(0)² - 12
f(0) = -12
So we have one point (0, -12)
When y = 0
0 = 3x² - 12
12 = 3x²
4 = x²
√4 = x
x = ⁺/₋ 2
So the graph crosses the x-axis at -2 and 2 and the y-axis at -12
The correct graph is option A
3/4 I think is the answer not sure sorry if it's wrong
Answer:
Unless that is a right triangle we cannot calculate an exact answer.
The third side has to be greater than 2 (because 19 -17 = 2) and must be less than 36 (because 19 + 17 = 36)
Step-by-step explanation:
The first one is a proportional relationship.
Answer:
<u>16 ounces</u> of the 30% hydrochloric acid solution is used in order to obtain the 25% solution.
Step-by-step explanation:
Let amount of 30% ounces be 'x' and that of 15% ounces by 'y'.
Given:
Total amount on mixing both the solution = 24 oz
∴
Also, the total acid content in the resulting 25% solution is equal to the sum of the acid contents in 30% and 15% solutions.
∴
Now, plug in 'x' from equation (1) into equation (2). This gives,
ounces
Therefore, ounces
Hence, 16 ounces of the 30% hydrochloric acid solution is used in order to obtain the 25% solution