Answer: The least possible value of k is -6.
Step-by-step explanation:
Let 'k' be the negative even integer that is greater than -7.86 .
On number line, -7.86 lies between -7 and -8 such that
-7 > -7.86 > -8
So, -7 is the least integer that is greater than -7.86.
Since, -6 > -7 . That means -6 is the least negative even integer that is greater than -7.86 .
Hence, the least possible value of k is -6.
Answer:
The time of a commercial airplane is 280 minutes
Step-by-step explanation:
Let
x -----> the speed of a commercial airplane
y ----> the speed of a jet plane
t -----> the time that a jet airplane takes from Vancouver to Regina
we know that
The speed is equal to divide the distance by the time
y=2x ----> equation A
<u><em>The speed of a commercial airplane is equal to</em></u>
x=1,730/(t+140) ----> equation B
<u><em>The speed of a jet airplane is equal to</em></u>
y=1,730/t -----> equation C
substitute equation B and equation C in equation A
1,730/t=2(1,730/(t+140))
Solve for t
1/t=(2/(t+140))
t+140=2t
2t-t=140
t=140 minutes
therefore
The time of a commercial airplane is
t+140=140+140=280 minutes
Answer:
20
Step-by-step explanation:
She only has 20 bags of flower petals, so she cannot create more than that. Because 40 is divisible by 20, she can make 20 bowls.
Refer to the diagram shown below.
h = the height of the house.
Apply the Pythagorean theorem to obtain
h² + 25² = (25√5)²
h² + 625 = 3125
h² = 3125 - 625 = 2500
h = √(2500) = 50 ft
Answer: The height is 50 ft.
If this is for E2020 the answer is
D)<span>No, his value of </span><span> should be positive because an even exponent indicates a positive value.
thats why it was wrong</span>