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3 years ago

If you pick a card at random from a well shuffled deck, what is the probability that you get a spade or a king

2 answers:

7 0

The probability of getting a spade is 1/4, and the probability of getting a king is 1/13. Thus, the probability of getting a spade or a king is $\frac{1}{4} + \frac{1}{13} = \boxed{\frac{17}{52}}$ .

Maurinko [17]3 years ago

6 0

Answer:

4/13

Step-by-step explanation:

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The ratio of student to teacher is 12.3 to 1

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Tell whether the triangle with the given side lengths is a right triangle. 15, 35, 39 Yes or no<br>

Lana71 [14]

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Step-by-step explanation:

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3 years ago

Find the area of a circle whose circumference is 31.4 centimeters. approximate as 3.14

hoa [83]

To find the circumference of a circle you multiply pi (3.14) by the diameter ad to find the area you multiply pi (3.14) times the radius squared

Since the circumference is 31.4 divide that by pi to find the diameter which is 10

The radius of a circle is half of the diameter, so for this circle the radius is 10 / 2 = 5

Take the radius and square it : 5^2 = 25

Then multiply the squared radius by pi (3.14) to find the are : 25 * 3.14 = 78.5

So the area of this circle is 78.5 centimeters squared

Hope this helps! Mark as Brainliest please! :)))

8 0

3 years ago

Read 2 more answers

Limit as x approaches 0 of (sin^2x)/x

melisa1 [442]

Answer:

Step-by-step explanation:

Given the expression

$\lim_{x \to \ 0} \frac{sin^2x}{x}$

Substitute the value of x in the function

$= \frac{sin ^2(0)}{0}\\= 0/0 (indeterminate) \\$

Apply l'hospital rule

$\lim_{x \to \ 0} \frac{d/dx(sin^2x)}{d/dx(x)} \\= \lim_{x \to \ 0} \frac{(2sinxcosx)}{1} \\$

Substitute the value of x

= 2 sin(0)cos(0)

= 2 * 0 * 1

= 0

Hence the limit of the function is 0

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3 years ago

5 x + 5 = -5 <br>what is x?

romanna [79]

Answer:

x=-2

Step-by-step explanation:

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3 years ago