Answer:
The revised drawing be larger or smaller than your original one
Step-by-step explanation:
The revised drawing be larger or smaller than your original one.
Because a drawing at a scale of:
- 1:10 means that the object is 10 times smaller than in real life scale 1:1
- 1: 8 means that the object is 8 times smaller than in real life scale 1:1
So it means the revised drawing be larger or smaller than your original one
Answer:
y = 6
y = 0
y = 0
Step-by-step explanation:
When, x = -2
y = 6
When, x = 0
y = 0
When, x = 4
y = 0
Answer:
B
Step-by-step explanation:
Given a quadratic equation in standard form
ax² + bx + c = 0 ( a ≠ 0 )
Then the discriminant is
Δ = b² - 4ac
• If b² - 4ac > 0 then 2 real irrational roots
• If b² - 4ac > 0 and a perfect square then 2 real rational roots
• If b² - 4ac = 0 then 1 real double root
• If b² - 4ac < 0 then 2 complex roots
Given
x² + 3x - 7 = 0 ← in standard form
with a = 1, b = 3, c = - 7 , then
b² - 4ac
= 3² - (4 × 1 × - 7) = 9 + 28 = 37
Since b² - 4ac > 0 then 2 real irrational roots
