AC and AB are tangents to circle O, meaning that the angles C and B are right angles of 90 degrees. Since a quadrilateral's internal angles must sum up to 360 degrees, this means that A + B + C + O = 360
70 + 90 + 90 + O = 360
O = 110 degrees.
Answer:
A) 7x^3 + 13x^2 + 8x + 9
Step-by-step explanation:
(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)
I like to line them up vertically
7x^3 +3x^2 + 2x
+ (10x^2 + 6x + 9)
-----------------------------------
7x^3 +13x^2 +8x +9
Answer:
K=14
Step-by-step explanation:
A=1/2*b*h
80=1/2*8*(6+k) multiply by 2 on both sides
160=8*(6+k) distribute by 8
160=48+8k subtract 48 from both sides
112=8k divide by 8
14=K
The total calories burnt in 20 minutes are 200
Step-by-step explanation:
We have to do simple multiplication to find the number of calories burnt.
Given
Number of calories burnt in one minute = c = 10
Time = t = 20 min
So the total number of calories burnt in 20 minutes will be:
Hence,
The total calories burnt in 20 minutes are 200
Keywords: Integers, unit
Learn more about integers at:
#LearnwithBrainly
Step-by-step explanation:
2/8 = u/12
cross multiply and we get:
24= 8u
u = 3
Topic: algebraic fractions
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