Answer:
C it has two real solutions
Step-by-step explanation:
If the discriminant of a quadratic equation is positive, it means that the graph intersects the x-axis, and hence produces two real solutions.
If the discriminant is zero, then the graph is tangential to the x-axis, and there will be two real <em>coincident</em> solutions.
If the discriminant is negative, then there are two complex solutions.
Answer:
Step-by-step explanation:
7-x=10
subtract -7 from both sides
-x=10-7
-x=3
x=-3
Answer:
A.
Step-by-step explanation:
We have x in exponent, so it is an exponential function.
Exponent is negative, so is is an exponential decay.
Using proportions, it is found that:
- Each of Brendan and Clair get R 1387.5.
<h3>What is a proportion?</h3>
A proportion is a fraction of total amount.
In this problem, the total amount divided is R 4625.
For every R4 Andrew gets, both Brendan and Clair gets R3, hence the ratio is 4:3:3, which means that:
- Andrew gets of the total amount.
- Brendan gets of the total amount.
- Clair gets of the total amount.
Then:
Hence:
- Each of Brendan and Clair get R 1387.5.
You can learn more about proportions at brainly.com/question/24372153
<span>AB is parallel to CD
</span>so
y = 180 - 150 = 30
answer
C. 30