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ioda
3 years ago
14

True or false if a radius of a circle intersects a chord it is perpendicular to that chord

Mathematics
1 answer:
UkoKoshka [18]3 years ago
8 0
It would be false





*Character limit fill ignore*
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What single percentage change is equivalent to a 23% decrease followed by a 16% increase?
Stells [14]
<h3>Answer:  10.68% decrease (choice F)</h3>

==========================================================

Explanation:

A decrease of 23% means that you still retain 77% of the original value. This is because 23% + 77% = 100%. Or you could write it like this: 100% - 23% = 77%. The 77% then converts to the multiplier 0.77

An increase of 16% will involve the multiplier 1.16 in which we can think of it like 1.16 = 1 + 0.16 = 100% + 16%

Now we'll multiply those two decimal values mentioned:

0.77*1.16 = 0.8932

This result is smaller than 1, so we have a percent decrease of some sort. Subtract it from 1 to find the decimal form of the percent decrease

1 - 0.8932 = 0.1068

Lastly, move the decimal point 2 spots to the right:

0.1068 converts to 10.68%

We have a decrease of 10.68% overall when combining the initial 23% decrease followed by the 16% increase.

It turns out the order doesn't matter, and we could do the 16% increase first then the 23% decrease next. The key as to why the order doesn't matter all relies on the fact that multiplication can be done in any order. As you can probably guess, this process can be extended for as many percentage increases and/or decreases that you want.

7 0
2 years ago
Julia invested $4,000.00 in a mutual fund with the simple interest rate of 3.5% per year. How much interest would she earn after
Harman [31]
Multiply the intrest rate per year by 2 then subtract that number from 4,000. You will get the answer of $3.93 after 2 years.
6 0
3 years ago
Read 2 more answers
Why does the square root of 64 have a positive and negative value?
barxatty [35]
Because it means it has two answers when -8×-8 it equals 64 so is 8×8
in math when negative multiply negative it will be positive...
5 0
3 years ago
janet completed this entier column of math homework in 10 min. How many sec per question did janet spend
xxTIMURxx [149]

Step-by-step explanation:

10 minutes = 600 seconds

Seconds per question is seconds/questions

Divide 600 by the number of questions:

600/(number of questions) = ________ seconds per question

4 0
3 years ago
The cost of a large flat screen tv is decreasing 20% per year.
Lemur [1.5K]
Let x be the old price

X= 1200$
The price decreased 20% after 1 year to become price y :
Y= 0.8x
= 0.8 (1200)
= 960$
In the year after y also decreased 20% to be price y’:
Y’= 0.8y
= 0.8 (960)
= 768 $
The price y’ then decreased 20% to become price y’’:
Y’’ = 0.8 y’
= 0.8 (768)
= 614.4 $
Then the price will be 614.4 $ after 3 years
8 0
3 years ago
Read 2 more answers
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