All categories

2 years ago

10 points

Mathematics

1 answer:

Sonbull [250]2 years ago

6 0

Answer:

1/169

Step-by-step explanation:

52 cards in a deck, 13 are diamonds

P(diamond) = number of diamonds/ total

= 13/52 = 1/13

Replace the card

52 cards in a deck, 13 are diamonds

P(diamond) = number of diamonds/ total

= 13/52 = 1/13

P (diamond, replace, diamond) = 1/13 * 1/13 = 1/169

You might be interested in

An observer for a radar station is located at the origin of a coordinate system. Find the bearing of an airplane located at the

AfilCa [17]

Answer:

135 degrees

$S45^{0}E$

Step-by-step explanation

Consider the attached diagram

we are required to find the bearing of the aeroplane,

Consider the right angled triangle BOE

|OB|=4 unit

|AB|=4 Units

$Tan \alpha =\frac{Opposite}{Adjacent} =\frac{4}{4} \\\\\alpha=Tan^{-1} 1=45 degrees$

The Bearing of the Aeroplane is therefore given:

(i)From North Clockwise as: 90+45 =135 degrees

(ii)From a North South Line as $S45^{0}E$

6 0

3 years ago

Square root of 75 plus square root of 3

olya-2409 [2.1K]

Answer:
6√3

Explanation:
Before we begin, remember the following:
$\sqrt{a*b} = \sqrt{a} * \sqrt{b}$
$m \sqrt{a} + n \sqrt{a} = (m+n) \sqrt{a}$

Now, for the given:
75 can be written as 25*3
This means that:
$\sqrt{75} = \sqrt{25*3}$
Applying the above concept, we can find that:
$\sqrt{75} = \sqrt{25*3} = \sqrt{25} * \sqrt{3}$
Now, we know that:
√25 = 5 (we ignored the negative value)

This means that:
√75 = 5√3

Finally, we can compute the needed sum as follows:
√75 + √3 = 5√3 + √3 = 6√3

Hope this helps :)

8 0

3 years ago

Read 2 more answers

Kiran got 99 marks in Math, 69 mark in English and 91 in science. Another student Surya got 92 marks in Maths 33 in English and

statuscvo [17]

Answer:

Total marks = 468

Step-by-step explanation:

to find their total marks, you should simply find the sum of all the marks scored by Kiran and Surya in all subjects. That is done as follows:

99 + 69 + 91 + 92 + 33 + 84 = 468

4 0

3 years ago