13.1.22
14.2.24
15.1.5
16.1.08
Answer:
x=54º
y=63º
Step-by-step explanation:
Let the other angle in the triangle be zº.
Because the measure of a line is 180º, zº=180º-117º=63º.
Because the triangle is isosceles yº=zº=63º.
The sum of the measure of the angles in a triangle is 180º. So, 63º+63º+xº=180º.
126º+xº=180º
xº=54º
Answer:
1°F to 7°F is the best range to store ice cream.
Step-by-step explanation:
The ideal storage temperature of ice cream = 4°F
The allowance in the temperature is 3°F
So, the range of the store = 4°F ± 3°F
Now, 4°F + 3°F = 7°F
and 4°F - 3°F = 1°F
Hence, 1°F to 7°F is the best range to store ice cream.
Answer:
Step-by-step explanation:
y = sin(t^2)
y' = 2tcos(t^2)
y'' = 2cos(t^2) - 4t^2sin(t^2)
so the equation become
2cos(t^2) - 4t^2sin(t^2) + p(t)(2tcos(t^2)) + q(t)sin(t^2) = 0
when t=0, above eqution is 2. That is, there does not exist the solution. so y can not be a solution on I containing t=0.
