Answer:
Step-by-step explanation:
Substitute y = x-4 in the first equation.
Distribute -2 in the expression.
Because we only want to find the value of x.
Therefore the answer is -4.
A] <span>A remote-control airplane descends at a rate of 2 feet per second. After 3 seconds it is 67 feet above the ground.
the point slope equation will be given as follows:
y-y1=m(x-x1)
where:
slope,m=2 ft/sec
(x1,y1)=(3,67)
thus plugging in the values in the formula, we obtain the point slope equation as follow:
y-67=2(x-3)
Answer:
</span>y-67=2(x-3)
b]The height of the plane after 8 seconds will be:
x=8 sec
but:
y-67=2(x-3)
substituting x=8 we get:
y-67=2(8-3)
y-67=2(5)
y=10+67
y=77
thus the height after 8 seconds is 77 ft
Answer:
distance = 14.4222
midpoint = (1, -2)
Step-by-step explanation:
distance between two points:
sqrt(x₂ - x₁)² + sqrt(y₂ - y₁)²
sqrt((5 - (-3))² + sqrt(-8 - 4)²
sqrt(8)² + sqrt(-12)²
distance = 14.4222
midpoint:
(1, -2)
I believe its A ...................That question is such a drag -.-
Answer:
I think the answer is C
Step-by-step explanation:
Because they said there are 34 currently so if you add 36 or 34 to 70 it has to be C