<span>Vertical angles must be C and D
A.be complementary. They are not always complementary, to be complementary means having a sum of 90 deg
B.be acute. - Vertical angles can be NOT acute depending on how they are positioned and intersected with the lines.
Answer
C.have the same vertex.
D.be congruent.</span>
Answer:
The boiling point of water is between 84 °C and 88 °C when the elevation is between 3.4 and 4.6 km.
Step-by-step explanation:
You want x such that ...
84 ≤ B(x) ≤ 88
84 ≤ 100 -3.5x ≤ 88 . . . . substitute for B(x)
-16 ≤ -3.5x ≤ -12 . . . . . . . .subtract 100
4.6 ≥ x ≥ 3.4 . . . . . . . . . . .divide by -3.5; this reverses the inequality
The velocity of the baseball is 20m/s
Velocity can be described as the speed of an object that is moving in a particular direction
The formula for calculating velocity is
velocity= displacement/time
The first step is to write out the parameters given in the question.
time= 5 seconds
displacement= 100m
The velocity can be calculated as follows;
velocity/displacement
= 100/5
= 20
Hence the velocity of the ball is 20m/s
Please see the link below for more information on velocity
brainly.com/question/19818214?referrer=searchResults
Let
x------> amount of pounds of apples
y------> amount of pounds of oranges
z-----> amount of pounds of peaches
we know that
x+y+z=127------> equation 1
x=4z-----> equation 2
y=7+z----> equation 3
substitute equation 2 and equation 3 in equation 1
x+y+z=127----> (4z)+(7+z)+z=127---> 6z=127-7---> 6z=120----> z=20 lb
x=4z---> x=4*20----> x=80 lb
y=7+z----> y=7+20---> y=27 lb
amount of pounds of apples----> 80 lb
amount of pounds of oranges----> 27 lb
amount of pounds of peaches---> 20 lb
