We are given the following:
AB = 4800 miles
AO = 4000 miles
There is also a rule that states that a line tangent to a circle, will be perpendicular to the radius of the circle at the point of tangency. Therefore, triangle BAO is a right triangle.
We use Pythagorean theorem to solve for the hypotenuse BO.
BO = √(AO²+AB²) = √(4000²+4800²) = 6248 miles
But the problem asks for the length of BC. Since we know that OC is a radius of the circle, then:
BC = 6248 - 4000 = 2,248 miles.
The answer is C.
Answer:
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Step-by-step explanation:
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Answer:
He was supposed to cross multiply the equation in the original equation. Step 2 was a wrong expression
Explanations:
The given equation is:
Cross multiply the equation, the equation becomes:
x = 8 - 12
x = -4
His mistake was in step 2, he did not properly expand the equation
The proper step was to cross multiply in step 2
Answer:
3.5
Step-by-step explanation:
If the shape is half of a circle, you will be using this formula: A = π
Your radius is half of the diameter. r = d/2 = 3/2 = 1.5
Substitute r = 1.5 into the formula.
A = π
A = (3.14)
Use your calculator to find the answer and round your answer.
3.5
Answer:
(B) Among registered voters, there was a steep increase in social media usage to follow political figures across all age groups and party
Step-by-step explanation:
From the chart of the question. It can be seen that at an average when comparing the year 2010 against the year 2014, there is an obvious or sharp increase in social media usage to follow political figures
There is also the issue of party affiliation which contributes to such an increase.