5×15= 75 the 4 days is irrelevant
The plant increased a total of 4 inches.
Week 3, the plant was 8in and week 4, the plant was 12in.
To find our solution, subtract 8 from 12
12-8=4
She must have at least 3 pennies.
Answer:
Perimeter = 18(1 + √3 ) cm
Step-by-step explanation:
The radius of each ball = 1/2 * 6 = 3 cm.
Lines drawn from the 2 points of contact for one billiard ball to the center of the ball are at right angles to the sides of the triangle ( Tangent/radius theorem).
If we now draw a line from the vertex of the big triangle to the center of the ball we get 2 right triangles, and they are 30-60-90 triangles.
If the adjacent side of a triangle ( which is part of the side of the big triangle) = x:
tan 30 = 3 / x
x = 3 / tan 30
= 3 / 1/√3
= 3√3 cm.
There are 6 of these sides in the big triangle so their total length =
18√3 cm.
The three 'middle' sides joining 2 billiard balls each have a length of 2 radii = 6 cms ( as they form a rectangle with the radii of 2 billiard balls).
So the perimeter of the triangle = 18√3 + 3(6)
= 18(1 + √3 ) cm
I would have liked to transfer a diagram but I can't get to copy it to this site.
Answer: 76Wh
Step-by-step explanation:
Basically all you have to do to find the answer is multiply 80 by 0.05. Then after that you subtract 80 by the answer you got. That's pretty much it.
80
<u>x 0.05</u>
4
80
<u>- 4</u>
76
