3 years ago

Which line segments are diameters of circle U? choose all answers that are correct.

Mathematics

2 answers:

Gennadij [26K]3 years ago

5 0

The answer: D and B are right!

fomenos3 years ago

3 0

B and D is correct

PS QT

GOOD LUCK

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What is the probability of flipping a coin 10 times and getting tails 7 times ? Round your answer to the nearest tenth of a perc

KatRina [158]

Answer:

Option C: 11.7%

Step-by-step explanation:

The number of elements in sample space when a coin is flipped 10 times will be:

$n(S) = 2^{10} \\= 1024$

Let A be the event that the tails appear 7 times:

Then,

$C_{(n,k)}=\frac{n!}{(k!)(n-k)!} \\where\\n=population\\k=picks\\In our case, k =7\\and\\n=10\\C_{(10,7)}= \frac{10!}{(7!)(10-3)!}\\= 120\\So, \\P(A) = \frac{n(A)}{n(S)} \\P(A) = \frac{120}{1024} \\= 0.1171\\$

Converting into percentage:

$P(A) = 0.1171*100=11.7%$

So, option C is correct ..

6 0

3 years ago

Pleaseee help if you can!!!!!!!

REY [17]

Answer:

85 degrees

Step-by-step explanation:

Theses angles are the same because its parallell

3 0

3 years ago

Eyo answer this please

OlgaM077 [116]

Answer:

B or C

I forcibly pick C because it makes sense so just pick C

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Find the volume of the pyramid below.<br> 7.2 in<br> 9.7 in

kumpel [21]

Answer:

23.28 inches (im not sure if this is correct because you need length, height, and width.)

Step-by-step explanation:

4 0

3 years ago

For what value of k will these pairs of simultaneous equations have no solution?

yKpoI14uk [10]

Kx-3y=k
y=4x+1 ( we will put it in 1st equation )
kx - 3 (4x+1)=k
kx - 12 x - 3 =k
kx - 12 x = k+3
x(k-12) = k+3
x= $\frac{k+3}{k-12}$
Also y= $\frac{5k}{k-12}$
We can not divide with zero.
k-12=0
k=12
For k= 12 equations have no solutions.

4 0

3 years ago