The coordinates plane is illustrated below.
<h3>How to illustrate the information?</h3>
A coordinate plane simply means the graphing system for points and lines.
Based on the information given, the area of teb triangle will be:
= 1/2 × b × h
= 1/2 × 11 × 20
= 110
Other information are attached.
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Answer:
2 real solutions
Step-by-step explanation:
To determine the nature of the solutions use the discriminant
Δ = b² - 4ac
• If b² - 4ac > 0 then 2 real solutions
• If b² - 4ac = 0 the 2 real and equal solutions
• If b² - 4ac < 0 then no real solutions
Given
x² + 9x + 20 = 0 ← in standard form
with a = 1, b = 9, c = 20, then
b² - 4ac
= 9² - (4 × 1 × 20 ) = 81 - 80 = 1
Since b² - 4ac > 0 then there are 2 real solutions
You need to get the ‘A’ on one side and the numbers on another. So add 4a to the left side which is -3a-11 < 1. Then you add 11 to the right side. So -3a< 12. To get a alone divide it by -3 on both sides. Also, when you divide a negative number the sign gets switched to the the other side so your answer is:
a > -4
24 right ????? I don't really remember
