Answer:
58cm squared
Step-by-step explanation:
Ok so what we first want to do is find out the total area of that rectangle.
The way we do this is by multiplying the width x height which in this case is 10 cm and 7 cm.
This gives us 70 cm as the total area of the rectangle if the circular hole wasn't there. Now we need to find the area of the circle.
The way we do this is by taking the circle and finding the radius. The radius is shown as 2cm.
Now the formula to find the area of a circle is which means it is about 3.14 multiplied by r squared.
R squared in this problem is going to be 2 x 2 which is 4.
Now we just do 3.14 times 4 which gives us about 12.
What we do next is subtract 12 from the total area of the rectangle which is 70.
This gives us 58cm squared as an answer.
Hope this helped ! !
<3
Answer:
$11.25
Step-by-step explanation:
4 x 5 = 20
9 x 5 = 45
20/4 = 5
45/5 = 11.25
Yay
directix x=5
that means the parabola opens left or right
the equation is
(y-h)²=4p(x-h)
alrighty
vertex is (h,k)
p is distance from focus to vertex
also distance from vertex to directix
if p>0 then the parabola opens to the right and focus is to the right of directix
if p<0 then the parabola opens to the left and focus is to the left of directix
alrighty
the distance between directix and focus divided by 2=p
hmm, note which one is to the left or right of which
directix is x=5
focus is (2,-3) where x=2
focus is to the left of directix
alrighty
fro m 5 to 2 the distance is 3
3/2=1.5
and since the focus is to the left of the directix, it is -1.5
so the parabols opens to the left
the vertex is 1.5 untis to the right of the focus
so vertex is at (3.5,-3)
so
equation is
(y-(-3))²=4(-1.5)(x-3.5)
(y+3)²=4(-1.5)(x-3.5)
Step-by-step explanation:
if one pump = x
the other pump = 2x
therefore
x + 2x = 8 minutes
3x = 8 minutes
Divide through by 3
x = 8/3 minutes
converting it to seconds
x = 8/3 * 60
x = 160 seconds
therefore
the first pump = 2x = 2 * 160 = 320 seconds
the second pump = x = 160 seconds
The answer it 1,067
got it now