Answer: question 6
4/7*8/10 =
first multiply the numeratores the the denominatos.
4*8=32 so this will be numerator.
7*10=70 this is denominator.
so answer is 32/70
same way question 7 is 28/40
question 8
11/2 *9/4 = 99/8= 12 3/8
question 9
convert to improper
9/5*7/3= 63/15 4 3/15
question 10
21/8*16/7= 336/56= 6/6
Step-by-step explanation:
Answer:
Part 7)
Part 8)
Step-by-step explanation:
Part 7) Find the length of AB
we know that
The<u><em> two tangent theorem</em></u> states that if we draw two lines from the same point which lies outside a circle, such that both lines are tangent to the circle, then their lengths are the same
so
In this problem, applying the two tangent theorem
AB=BC
substitute the given values
solve for x
Find the length of AB
substitute the value of x
Part 8) we know that
If CD is tangent to circle E at point C
then
Line segment CD is perpendicular to line segment EC (radius) and CDE is a right triangle
so
Applying the Pythagorean Theorem in the right triangle CDE
substitute the given values
solve for x
Answer:
The answer is A.
Step-by-step explanation:
Given that the total interior angles in a quadrilateral is 360°. So in order to find the 4th angle, you have to subtract the remaining angles from 360° :