Answer:
Make sure you are using a perfect circle. This method won't work with ellipses, ovals or anything but a real circle. A circle is defined as all the points on a plane that are an equal distance from a single center point. The lids of jars are good household objects to use for this exercise.You should be able to calculate pi roughly because in order to get exact results of pi, you will need to ...
Measure the circumference of a circle as accurately as you can. The circumference is the length that goes around the entire edge of the circle. Since the circumference is round, it can be difficult to measure (that's why pi is so important). Lay a string over the circle as closely as you can. Mark the string off where it circles back around, and then measure the string length with a ruler.
Measure the diameter of the circle. The diameter runs from one side of the circle to the other through the circle's center point.
Use the formula. The circumference of a circle is found with the formula C= π*d = 2*π*r. Thus pi equals a circle's circumference divided by its diameter. Plug your numbers into a calculator: the result should be roughly 3.14.[3] X Research source
Repeat this process with several different circles, and then average the results.
Step-by-step explanation:
Cosine (16) = 35 / springboard
springboard = 35 / 0.96126
springboard =
<span>
<span>
<span>
36.41</span></span></span>
Answer:
k=13t/t+6
Step-by-step explanation:
kt=13t−2k(3)
Step 1: Add 6k to both sides.
kt+6k=−6k+13t+6k
kt+6k=13t
Step 2: Factor out variable k.
k(t+6)=13t
Step 3: Divide both sides by t+6.
k(t+6)t+6=13tt+6
k=13t/t+6
Answer:
y = 0x + 9
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 )
here m = 0 and c = 9, hence
y = 0x + 9
The equation of a horizontal line is normally written as y = 9
with the x- term omitted
Answer:
x = 28 cm
Step-by-step explanation:
By "similar", they mean the ratio of the two sides are equal; essentially, the large one is a scaled up version of the small one.
1. Write the equation that sets the two sides equal to each other with the ratios shown as fractions. You need to make sure the short side on each of the two shapes are both on the top or both on the bottom of the fraction -- if it's switched, your answer will be wrong
= 
2. Then, cross multiply (multiply the bottom number from one fraction with the top number from the other fraction) and solve for x.
3x = 7 x 12
3x = 84
x = 84/3
x = 28 cm
Be sure to include the unit of measurement (in this case, cm) in your answers! Some teachers are picky about that so it's best to be safe
