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3 years ago

Help me i will give brainliest! Asap

Mathematics

2 answers:

shusha [124]3 years ago

4 0

Answer:

It's 5

Step-by-step explanation:

fomenos3 years ago

3 0

Answer:

Step-by-step explanation:

|-5| means that you have to find the absolute value, -5 and 5 are 10 units away from each other on the number line. They are also opposites and when added, result in a zero pair.

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3 years ago

In ΔCDE, the measure of ∠E=90°, the measure of ∠C=75°, and CD = 5.8 feet. Find the length of EC to the nearest tenth of a foot.

bearhunter [10]

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3 years ago

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Confused on what do do first . Can anyone help ?

kirza4 [7]

So solve for q

first factor q out of the summation $q \sum^{\inf}_{k=2} (\frac{2}{3})^k=8$

now, determine what the summation is
$\sum^{\inf}_{k=2} (\frac{2}{3})^k =?$

its been a while since ive done summations so i dont remember any tricks but that summation is essentially equal to
$\frac{2}{3} ^2 +\frac{2}{3}^3+\frac{2}{3}^4+\frac{2}{3}^5+...$

or factored to be something like this
$\frac{2}{3}^2 *(1+\frac{2}{3}+\frac{2}{3}^2+\frac{2}{3}^3+...)$
which i believe there's a formula for

regardless using a calculator, the summation turns out to be 4/3 i think

you should definitely double check this step

so replacing the summation for 4/3, the equation is now
q*(4/3) =8

pretty easy to solve from here
divide 4/3 to both sides to get q

any questions?

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3 years ago

a pizza shop offers 30% off the price of a large pizza every Tuesday night. If the regular price is $25, what is the discounted

Oksi-84 [34.3K]

Take the percentage and times it by the the price and you will get 30% OF the amount and all you have to do is subtract the 30% from your original price and you will get your answer which is $17.5

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