Answer:
1. 1:4 - 1/4 - 25%
2. 3:5 - 3/5 - 0.6 (simplified version)
6:10 - 6/10 (unsimplified)
Step-by-step explanation:
AO = 21
BC = 14
OC = radius of the circle = AO = 21
∴ OB = OC + CB = 21 + 14 = 35
<span>Line AB is tangent to circle O at A</span>
∴ AB is perpendicular to AO
∴ Δ OAB is a right triangle at A
Applying Pythagorean theorem
∴ OB² = AO² + AB²
∴ AB² = OB² - AO² = 35² - 21² = 1225 - 441 = 784
∴ AB = √784 = 28
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Answer:

Step-by-step explanation:
You can plot the graph on online graphing calculator to check.
Brainliest please~
85/136 x 100 = 8500/136 = 62.5%
If we write the first integer as the variable n, all numbers that come after it can be written as n+1, n+2, etc.
so the sum of four consecutive integers is:
sum = n + (n+1) + (n+2) + (n+3)
if we simplify:
sum = 4n +6
and if we want to know what the first integer is, we can re-write the equation as:
= n
and that is your answer.