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3 years ago

A card is chosen at random from a standard deck of cards. What is the probability that it is a club or a face card?

Mathematics

1 answer:

Naya [18.7K]3 years ago

7 0

There’s 52 cards in a deck

Each suite (4) has 3 face cards

4(3)/52

12/52

3/13

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At the green house of salad you get a $1 coupons for every 3 salads you buy.What is the least number of salad you could buy to g

IrinaK [193]

If one coupons costs you 3 salads, 10 salads costs you 10 × 3 = 30 salads.

To get $10 in coupons, the least amount of salads you would need to buy is 30.

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3 years ago

Heres 2 photos idk showed but does anyone know the answer?

Inessa [10]

Answer:

The answer I think would be hexagon

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2 years ago

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Prove : sin²θ + cos²θ = 1 thankyou ~

Gnom [1K]

Answer:

See below

Step-by-step explanation:

Here we need to prove that ,

$\sf\longrightarrow sin^2\theta + cos^2\theta = 1$

Imagine a right angled triangle with one of its acute angle as $\theta$ .

The side opposite to this angle will be perpendicular .
Also we know that ,

$\sf\longrightarrow sin\theta =\dfrac{p}{h} \\$

$\sf\longrightarrow cos\theta =\dfrac{b}{h}$

And by Pythagoras theorem ,

$\sf\longrightarrow h^2 = p^2+b^2 \dots (i)$

Where the symbols have their usual meaning.

Now , taking LHS ,

$\sf\longrightarrow sin^2\theta +cos^2\theta$

Substituting the respective values,

$\sf\longrightarrow \bigg(\dfrac{p}{h}\bigg)^2+\bigg(\dfrac{b}{h}\bigg)^2\\$

$\sf\longrightarrow \dfrac{p^2}{h^2}+\dfrac{b^2}{h^2}\\$

$\sf\longrightarrow \dfrac{p^2+b^2}{h^2}$

From equation (i) ,

$\sf\longrightarrow\cancel{ \dfrac{h^2}{h^2}}\\$

$\sf\longrightarrow \bf 1 = RHS$

Since LHS = RHS ,

Hence Proved !

I hope this helps.

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2 years ago

The length of a rectangle is 6 meters more than its width. The area of the rectangle is 114 square meters. Which of the followin

Leno4ka [110]

Answer:

last one

Step-by-step explanation:

x = width

x+6 = length

Area = length times width

x(x + 6) = $x^{2}$ + 6x

$x^{2}$ + 6x = 114 (subtract 114 from both sides)

$x^{2}$ + 6x -114 = 0

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2 years ago

Whats three billion plus five trillion lol

Ira Lisetskai [31]

Answer:

5,003,000,000,000

Step-by-step explanation:

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3 years ago

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