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2 years ago

True or False? The Blue Radius is Perpendicular to the Green Chord.

Mathematics

2 answers:

Brums [2.3K]2 years ago

8 0

Answer:

Option A. True.

Step-by-step explanation:

As we know form the radius and chord theorem if diameter or radius divides a chord in two equal parts then radius will be perpendicular to the chord.

Here chord in green color is divided in two equal parts 7.2 units each by radius in blue color.

Therefore by theorem radius of the circle will be perpendicular bisector of the chord.

Hence The statement given in the question is True.

RideAnS [48]2 years ago

5 0

As, both the arms are equal, they must be perpendicular to each other.

So, your final answer is "TRUE"

Hope this helps!

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find the probability of being delt 5 clubs and 3 cards with one of each remaining suit in 8 card poker

kumpel [21]

Answer: 0.003757(approx).

Step-by-step explanation:

Total number of combinations of selecting r things out of n things is given by:-

$^nC_r=\dfrac{n!}{r!(n-r)!}$

Total cards in a deck = 52

Total number of ways of choosing 8 cards out of 52 = $^{52}C_8$

Total number of ways to choose 5 clubs and 3 cards with one of each remaining suit = $^{13}C_5\times^{13}C_1\times^{13}C_1\times^{13}C_1$ [since 1 suit has 13 cards]

The required probability = $=\dfrac{^{13}C_5\times^{13}C_1\times^{13}C_1\times^{13}C_1}{^{52}C_8}$

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2 years ago

Please help. Will give brainliest.

evablogger [386]

Alright, so you have the basic formula- good.
You have the A value (400), the interest rate r (7.5% -> .075 in decimal), and the final P value (8500). So, we only need to solve for t.

8500 = (400)(1+.075)^t
/400 /400
21.25 = 1.075^t
logarithms are the inverse of exponents, basically, if you have an example like
y = b^x, then a logarithm inverts it, logy(baseb)=x
Makes sense if you consider a power of ten.
1000 = 10^3
if you put logbase10(1000), you'll get 3.
Anyways, though, to solve the problem make a log with a base of 1.075 in your calculator
log21.25(base 1.075) = t
also, because of rules of change of base (might want to look this up to clarify), you can write this as log(21.25)/log(1.075) = t
Thus, t is 42.26118551.
Rounded to hundredths, t=42.26

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3 years ago