Hello, your answer would be (-5, 5)
Answer:
C. b²< 40
Step-by-step explanation:
2x²+ bx + 5=0 has no real solutions
=> D< 0
b² < 4ac
b²< 4(2)(5)
b²< 40
H^2 = 2 * (3 sqrt2)^2
= 2 * 18
= 36
hypotenuse = sqrt 36 = 6
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➷ You have to find the point at which the two lines intersect
It would be B. 2.5 weeks
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Let y be the temperature
Let m be the rate of temperature drop in degrees per hour
Let x be the number of hours elapsed since 8PM
The initial temperature (at x = 0) is 0
y = mx
Four hours from 8 PM, the temperature was -16.8 degrees
-16.8 = m(4)
m = -4.2 degrees per hour
At 9PM, one hour will have elapsed.
y = -4.2(1)
y = -4.2 degrees
