Answer:
Known two points, list function expression, use
The function expression is
It is known that the cross section of two points is 7, so the point of 2:3 is 14 / 5, that is, 0 + 14 / 5 is the abscissa of the point, which is substituted into the original equation to get y = - 7 / 5.
So the result is 
Answer:
dawn= x
erik= 1/3 x
jiro= 1/3 x -4
alita= 2(1/3 x -4)
x+
x+ (1/3) x -4+2(1/3 x -4)=72
Step-by-step explanation:
Answer:
do the following
Step-by-step explanation:
the question says that the line is passing thur the point 1,1 ... so when x = 1 so does y ... also when x= a.. then y=0 and when y=b then x =0 .. and this is a straight line... also 1/a + 1/b = 1
if you were to draw on a graph... this .. you would see that when b=2 then x=0 and also when a=2.. then y = 0 ....
and 1/2 + 1/2 =1
so that's the line.... draw in just roughly.... you'll see... then what is the equation of that line.. usually we would use the slope intercept formula for the equations.. there are more than one way to show the line.. is my point.. but.. if we use y = mx + b where m = -1 and b = 2 then...
y= - x+2
That answer got long.. sorry :/
Answer:
176.71 cm
or
56.25π cm
Step-by-step explanation:
The formula for the circumference of a circle is:
C = πd
Where C is the circumference and d is the diameter
Let's substitute the circumference given into this formula:
C = πd
15π = πd
Now, we can solve this equation for d.
Divide by π on both sides:
15π = πd
/π /π
15 = d
Therefore, the diameter is 15 cm.
We need to find the area. The formula for the area of a circle is:
A = πr²
First, let's find the radius. The radius is half of the diameter, so divide the diameter by 2.
15/2 = 7.5
radius = 7.5 cm
Now, we can solve for the area.
Substitute into the formula for area:
A = πr²
A = π(7.5²)
A = π(56.25)
A ≈ 176.71
Therefore, the area is approximately 176.71 cm, or in terms of pi, 56.25π.
