4 x 7= 28
BTW no calculator. Did it in my head. Hope this helps!
Answer:
30 feet
Step-by-step explanation:
A ratio of 4:3 means that if one part can be represented by x, the original height is equal to 4 * x and the mural height is equal to 3 * x. This is because the ratio of original : mural is 4 : 3, so if one part = x, we have 4 * x : 3 * x. Therefore,
original mast height = 40 feet
4 * x = original mast height = 40 feet
divide both sides by 4 to get x
x = 10 feet
3 * x = mural mast height = 3 * 10 feet = 30 feet
"<span>Arc cd 1\4 of the circumstance of a circle. What is the radian measure of the central angle." Better: 'The arc CD is 1/4 the circumference of a circle. What is the radian measure of the central angle?'
That would be 1/4 of 2pi, or pi/2 (answer)</span>
SchwarzschildRadius here:
So,
The equation for a circle is:

Where the center of the circle is (h,k), and the radius of the circle is r.
Substituting 7,8 for (h,k) and 11 for r in the equation gives us:

That would be standard form.
Hope this helps!