Answer:
3/4 is more than 2/3
Step-by-step explanation:
B
given a quadratic equation in standard form
ax² + bx + c = 0
Then we can describe the nature of the roots using the discriminant
Δ = b² - 4ac
• if b² - 4ac > 0, then 2 real, distinct and irrational roots
• if b² - 4ac > 0 and a perfect square, then real and rational roots
• if b² - 4ac = 0, then real and equal roots
• if b² - 4ac < 0, then roots are not real
for x² + 9x + 14 = 0
with a = 1, b= 9 and c = 14, then
b² - 4ac = 9² - (4 × 1 × 14 ) = 81 - 56 = 25
Since b² - 4ac > 0 and a perfect square, then roots are real and rational
Answer:
An isosceles triangle is symmetrical and a right triangle has a 90 degree angle and not symmetrical so they are not the same.
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Answer: The plumber worked 3.42 hours
Step-by-step explanation:
25h+50=135.50 (minus 50 to both sides)
25h=85.50 (divide 25 to both sides)
h=3.42
Check:
25(3.42)+50=135.50
85.50+50=135.50
135.50=135.50
