If 4x^2-100=0 the roots of the equation are
1 answer:
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For problems like these, we use something called a ceiling function, in which 
. If we do 
, we get that we do 
, which is 14 buses. We take the ceiling of the division because if we don't, we know that there are going to be extra kids left over that won't be able to seat on a bus. If we just rounded down to 13 buses, we would have been able to seat only 936 kids, a full 64 kids left over.
The difference between each term is -5, i.e. we know one of our terms is -5n. Now we just need to adjust it to get u1 correct. At n=1, -5n would give us -5 therefore we need to add 6 to get to 1. This gives us our equation:
Now we can work out the sum easily (we can use an equation using the above but personally I prefer the other one as it's less prone to mistakes):
We know n is 12, and we know u1 is 1, and we also know the difference is -5.
Substituting this in:
Now we can work out the sum easily (we can use an equation using the above but personally I prefer the other one as it's less prone to mistakes):
We know n is 12, and we know u1 is 1, and we also know the difference is -5.
Substituting this in:
Answer:
See below
Step-by-step explanation:
The measure of all the arcs can be obtained by using 'Central angle and its corresponding arc theorem'.
1. The measure of arc AD is
2. The measure of arc ABC is
3. The measure of arc ADB is
4. The measure of arc BD is