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3 years ago

7

You draw two cards at random from a standard deck. what is the probability of drawing at least one diamond?

1 answer:

Volgvan3 years ago

4 0

I'm a deck of cards there are 52 cards. Minus the two jokers. There are four suits over all each containing 13 cards each. So you have a 13/52 chance of picking a diamond or a 13/54 if you include the jokers

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PLEASE ANSWER WILL GIVE POINTS!!!!!!!!!!!

iris [78.8K]

Given:

The figure of a right triangle ABC.

To find:

The trigonometric ratios $\sin B, \tan A, \cos B$ .

Solution:

Using Pythagoras theorem,

$Hypotenuse^2=Perpendicular^2+Base^2$

$AB^2=AC^2+BC^2$

$(10)^2=(6)^2+BC^2$

$100-36=BC^2$

$64=BC^2$

Taking square root on both sides.

$\sqrt{64}=BC$

$8=BC$

So, measure of BC is 8 units.

Now,

$\sin \theta=\dfrac{Opposite}{Hypotenuse}$

$\sin B=\dfrac{AC}{AB}$

$\sin B=\dfrac{6}{10}$

$\sin B=\dfrac{3}{5}$

Similarly,

$\tan \theta=\dfrac{Opposite}{Adjacent}$

$\tan A=\dfrac{AC}{BC}$

$\tan A=\dfrac{6}{8}$

$\tan A=\dfrac{3}{4}$

And,

$\cos \theta=\dfrac{Adjacent}{Hypotenuse}$

$\cos B=\dfrac{BC}{AB}$

$\cos B=\dfrac{8}{10}$

$\cos B=\dfrac{4}{5}$

Therefore, the required trigonometric ration are $\sin B=\dfrac{3}{5}, \tan A=\dfrac{3}{4}, \cos B=\dfrac{4}{5}$ .

6 0

3 years ago

Help me pls due in 5 mins

Drupady [299]

Answer: $215\ cm^2$

Step-by-step explanation:

Given

Here the given figure can be divided into two shapes i.e. rectangle and a trapezium

For rectangle ABCD Area = $10\times8=80\ cm^2$

Area of trapezium CEFD Area is $\frac{1}{2}[\text{sum of non-parallel sides}]\times[\text{distance between them}]$

$\Rightarrow \frac{1}{2}\times [10+17][10]=135\ cm^2$

Total shaded area $=80+135=215\ cm^2$

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3 years ago

what is the greatest common factor of two numbers is 4. The sum of the numbers is 76. What are the two numbers?

melisa1 [442]

Answer:

4 and 72

Step-by-step explanation:

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3 years ago

Find the surface area of the

katrin2010 [14]

Answer:

the surface of hexagonal prism is 12 cm

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3 years ago

For all parts of this question, use the function y - 3 = -2(x - 2)

Elden [556K]

Answer:

Y

5

1

-3

-7

A step-by-step explanation

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3 years ago