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fiasKO [112]
3 years ago
14

Please help with geometry! Will give thanks and brainliest answer.

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
6 0
B - 63 Degrees, obviously because all angles add up to a sum of 180 degrees.
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746.258 as an equivalent expression
Mazyrski [523]

Answer:

7x100 4x10 2x0.1 5x0.01 8x0.001

3 0
3 years ago
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A standard deck of cards has 52 cards divided into 4 suits, each of which has 13 cards. Two of the suits ($\heartsuit$ and $\dia
Gnoma [55]

Answer:

The number of ways to select 2 cards from 52 cards without replacement is 1326.

The number of ways to select 2 cards from 52 cards in case the order is important is 2652.

Step-by-step explanation:

Combinations is a mathematical procedure to compute the number of ways in which <em>k</em> items can be selected from <em>n</em> different items without replacement and  irrespective of the order.

{n\choose k}=\frac{n!}{k!(n-k)!}

Permutation is a mathematical procedure to determine the number of arrangements of <em>k</em> items from <em>n</em> different items respective of the order of arrangement.

^{n}P_{k}=\frac{n!}{(n-k)!}

In this case we need to select two different cards from a pack of 52 cards.

  • Two cards are selected without replacement:

Compute the number of ways to select 2 cards from 52 cards without replacement as follows:

{n\choose k}=\frac{n!}{k!(n-k)!}

{52\choose 2}=\frac{52!}{2!(52-2)!}

      =\frac{52\times 51\times 50!}{2!\times50!}\\=1326

Thus, the number of ways to select 2 cards from 52 cards without replacement is 1326.

  • Two cards are selected and the order matters.

Compute the number of ways to select 2 cards from 52 cards in case the order is important as follows:

^{n}P_{k}=\frac{n!}{(n-k)!}

^{52}P_{2}=\frac{52!}{(52-2)!}

       =\frac{52\times 51\times 52!}{50!}

       =52\times 51\\=2652

Thus, the number of ways to select 2 cards from 52 cards in case the order is important is 2652.

6 0
3 years ago
X + 4 = 6 . Solve for x .
LuckyWell [14K]

Answer:

x = 2

Step-by-step explanation:

x + 4 = 6

=> x = 6 - 4

=> x = 2

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2 years ago
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It is not possible to solve percent problems using proportions. True or False
ra1l [238]
Thank you posting your question on Brainly. I hope my answer is satisfactory to you.


The answer is: FALSE
It is possible to solve percent problems using proportions.


Hope this helps!

8 0
4 years ago
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Explain how you can use a number line to find the sum of -8.3 + 10.5. Please help!
ss7ja [257]

adding a negative number is the same as subtracting a positive number. This question is the same as 10.5-8.3

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