Lisa has 21 books because you add 1 to Felix because she Lisa had 1 more than him & Joe has 10 than Lisa .
In standard form it would be x + 2y = 8.
x + 2y = 8
2y = -x + 8
y = -1/2x +4
Answer:
2
Step-by-step explanation:
Just substitute in 7 for the n.
30-4(7)
30-28
2
The 7th term in the sequence is 2.
Answer:
No real roots
Step-by-step explanation:
Given
7x² + 5x + 1 = 0 ← in standard form
with a = 7, b = 5, c = 1
To determine the nature of the roots use the discriminant
Δ = b² - 4ac
• If b² - 4ac > 0 then roots are real and distinct
• If b² - 4ac = 0 then roots are real and equal
• If b² - 4ac < 0 then the roots are not real
Here
b² - 4ac = 5² - (4 × 7 × 1) = 25 - 28 = - 3
Thus the 2 roots are not real
Answer:
36 units
Step-by-step explanation:
Hope can help you ...I use the formula that to find its area...
