Answer:
x = -3/2 = -1.500
x = 7/3 = 2.333
Step-by-step explanation:
Answer:
x=7
Step-by-step explanation:
if you look at this diagram as 2 triangles, the little one, and then the big one that the little one is inside of, and realize that they are similar triangles (by AAA standards) you can use a ration to solve the answer. the side length 9 is the length that is similar to side length 21, so you put those in a fraction format (9/21), and side length 3 is similar to side length x so you put those in a fraction (3/x), and then you create a ration with those
9/21=3/x
now you can cross-multiply 21 times three (63) and divide that number by 9 (7) to get your final answer of x=7.
Hope this helps!
Answer:
probs around 32
Step-by-step explanation:
Divide the circumference by π.
Divide the result by 2 to get the circle's radius.
Multiply the radius by itself to get its square.
Multiply the square by π, or 3.14 for an estimation.
You found the circle's area from the circumference.
To answer set up a proportion.
You are trying to find how many books are in the entire book given 80% of the pages which is 180. Thus you put 80 over 100 and 180 over X(total number of pages). Then you cross multiply to solve for x.
Answer:
Step-by-step explanation:
We want to use the unit circle to find the value of 
.
Note that 
is in the third quadrant.
This makes an angle of 
with the positive x-axis.
On the unit circle;
