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4 years ago

13

There are 16 juniors and 8 seniors in the Chess Club. If the club members decide to send 9 juniors to a tournament, how many dif

ferent possibilities are there?

1 answer:

Licemer1 [7]4 years ago

3 0

Answer:

(16 over 9) = 16!/(9!*7!) = 11440

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What is 100x398+56.

Serjik [45]

Answer:

39856

Step-by-step explanation:

100 × 398 + 56

39800 + 56

39856

8 0

3 years ago

14. What is the solution of the system? Use elimination.<br> 9x + y = 30<br> 6x - y = 15

klemol [59]

Answer:

x=90/16,y=-150/16

Step-by-step explanation:

Simultaneous equation and we are to use elimination method

9x+y=30...(1)

6x-y=15..(2)

Add (1) and (2)

16x=15

Divide both sides by 16

x=15/16

Then substitute the value of x into (2)

6(15/16)-y=15

90/16-y=15

Substrate 15 from both sides

90/16-y-15=0

Add y to both sides

90/16-15=y

Lcm for only the left side which is 16

90-240/16=y

-150/16=y

Therefore x is 90/16 and y is -150/16

6 0

3 years ago

Brianna buys a doll for 11.58 and some lotion for 3.14 she pays with a 20 dollar bill how much change should she get to the near

sertanlavr [38]

Answer:

5.30

Step-by-step explanation:

11.58 + 3.14 = 14.72

20 - 14.72 = 5.28

nearest dime is 5.30

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3 years ago

Help me<br> !!!!!!!!!!!!!

iren [92.7K]

Answer:

its 1

Step-by-step explanation:

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3 years ago

In the triangle above, what is sin A

Shkiper50 [21]

Answer:

$\large\boxed{\sf sin(A)=0.5}$

Step-by-step explanation:

A right angled triangle is given to us and we would like to find out the value of sin(A) .

From the triangle we can see that the measure of angle BAC is 30° . Therefore ,

$\longrightarrow A = 30^o$

On using sin both sides ,

$\longrightarrow sin(A) = sin30^o$

As we know that the value of sin30° = 1/2. So;

$\longrightarrow sin(A)=\dfrac{1}{2}$

Simplify by converting it into decimal ,

$\longrightarrow \underline{\underline{sin(A) = 0.5}}$

<u>Hence</u><u> </u><u>option</u><u> </u><u>B</u><u> </u><u>is</u><u> </u><u>correct</u><u> </u><u>.</u>

And we are done!

8 0

2 years ago