A porch has the shape of a semicircle with a diameter of 7 ft.What is the approximate area of the porch, rounded to the nearest square foot? Use 3.14 to approximate .
ft2
Answers
R = D / 2
R = 7 / 2
R = 3.5
A = 3.14 * 3.5^2
A = 3.14 * 12.25
A = 38.465
Divide it by 2 since its a semi-circle:
38.465 / 2 = 19.2325
So about 19 square feet.
A = 3.14 * 3.5^2
A = 38.465
38.465/2 = 19.2325 square feet of semicircle
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3.+ 4(4x - 3) = 4(6x + 4) +4
Answers
Answers
This is asking for you to use the Pythagoras's theorem, which says that if you are given a height of a right triangle (h) and the length of that right triangle (L), then, the hypotenuse, or the distance between them (d), is:
Here, we are given that the height is 3m and the length is 5m. The distance, then will be given by:
So, the distance between the ladder and the bottom of the slide is 4 meters. Hope I could help! :)
In Step 1, the radius should be found by multiplying the diameter by 2.
In Step 2, the formula 2pi r should be used to find the area of the circle.
In Step 3, the resulting area should be in terms of pi
In Step 4, the units of the resulting volume should be cm^2
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Whenever we are given with the diameter of any such figure ,
to find the radius , we divide the diameter by 2.
We know that
Diameter = 2 * radius
or
Radius = Diameter /2
,
In the question it says the in first step that
the radius should be found by multiplying the diameter by 2
, this is the first error
It should be that
the radius should be found by dividing the diameter by 2
Answer:
3
Step-by-step explanation:
I dont have time sorry comment kf younwantnme tk explain
Answers
Hope this helped
Answer:
D.) x = 3
Step-by-step explanation:
4 + 3x = 2(3x - 7) + 9
4 + 3x = 6x - 14 + 9
3x - 6x = 9 - 14 - 4
-3x = -9
x = -(-9)/3
x = 9/3
x =3
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Answers
Answer:
y = 2x - 5
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
to calculate m use the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 2, - 9) and (x₂, y₂ ) = (6, 7)
m = (7 + 9) / (6 + 2) = 16/8 = 2
y = 2x + c ← is the partial equation
to find c use either of the 2 points
using (6, 7), then
7 = 12 + c ⇒ c = 7 - 12 = - 5
y = 2x - 5 ← equation in slope-intercept form