Answer:
y = -2x + 25
Step-by-step explanation:
A standard equation can be in slope-intercept form: y = mx + b
m is the slope, b is the y-intercept.
Plug in the given slope.
y = -2x + b
To find b, plug in the given point (9, 7).
7 = -2(9) + b
Multiply.
7 = -18 + b
Add 18 to both sides to find b.
25 = b
Plug this into your standard equation.
y = -2x + 25
Check by plugging in the given point again.
7 = -2(9) + 25
7 = -18 + 25
7 = 7
Your answer is correct!
Hope this helps!
Answer:
Step-by-step explanation:
Let x is the total population of the world.
Therefore, by the condition given the population of North America is 
Again it is given that 
fraction of the world's population lives in the United States of America.
So, 
is the population of USA.
Therefore, the fraction of the population of North America that is the population of USA will be 
(Answer)
Add the two known angles: 45° + 45° = 90°
Now we know the third angles. Which is a 90 degree angle. If a triangle has a 90 degree angle, then it is a right angle triangle.
Answer:
V = 1384.7 or 1385.4
(look at explanation)
Step-by-step explanation:
V = pi r^2 (h)
V = pi (49) (9)
V = pi (441)
V = 1384.74 if pi is 3.14
if pi is longer
V = 1385.44236
