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Ainat [17]
3 years ago
13

Which is a perfect square? 72 81 90 99

Mathematics
2 answers:
Tpy6a [65]3 years ago
8 0
81 is the perfect square because  9 * 9
GREYUIT [131]3 years ago
5 0
81 is the answer beacuse if you times 9*9 you get 81 aka 81 is your square hope this helped:)
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Two cards are randomly selected from an ordinary playing deck.
Anna007 [38]

Answer:

The required probability is 0.048

Step-by-step explanation:

Consider the provided information.

Out of 52 card we need to select only 2.

Therefore the sample space is: ^{52}C_2=1326

One card is Ace. The number of Ace are 4 and we need to select one of them.

This can be written as: ^4C_1=4

The second card can be Ten or a Jack or a Queen or a King.

There are 4 Ten, 4 jack, 4 Queen, and 4 king in a deck and we need to select only 1 out of them.

So we can say that we need to select 1 card out of 16.

This can be written as: ^{16}C_1=16

Thus, the probability that one of the cards is an ace and the other one is either a ten, a jack, a queen or a king is:

P=\frac{16\times4}{1326}\approx0.048

Hence, the required probability is 0.048

3 0
3 years ago
What does 1 2/5 x 2 =
Schach [20]

Answer:

24/5

Step-by-step explanation:

12/5 x 2 = (12x2)/ 5 = 24/5

5 0
3 years ago
Read 2 more answers
In the given circle, m DE = 105° and m EG = 125°. What is the mZDEG? (3 pts)
Sophie [7]
It’s so sis is not a or b it’s c
3 0
3 years ago
What is the vertex of the graph of f(x) = |x + 3| + 7?<br> (3.7)<br> 07.3)<br> -3.7)<br> 7-3)
spayn [35]

Step-by-step explanation:

.........

4 0
3 years ago
9
____ [38]

Answer:

y = 5x+3

Step-by-step explanation:

a general line is represented by the equation:

y = mx + n

a line with m=5, that goes through (-1,-2), should satisfy the equation:

-2 = 5×(-1) + n

this is because any point on the line, satisfies it's equation.

from this we get n = 3, hence our answer

4 0
2 years ago
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