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alexandr402 [8]

4 years ago

14

Two cards are drawn at random from a standard deck of 52 cards, without replacement. What is the probability that both cards dra

wn are hearts? (There are 13 hearts in a standard deck of cards.)

1 answer:

Anna [14]4 years ago

4 0

13 hearts in deck, minus 2 drawn = 11. Would be 11/52.

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65x = 12.1 what does x equal? help quick

Bogdan [553]

Answer:

$65x = 12.1 \\ x = \frac{12.1}{65} \\ x = 0.186$

8 0

3 years ago

Read 2 more answers

What is the volume of a sphere with a diameter of 15 cm?

NNADVOKAT [17]

Answer:

V≈1767.15cm³

Step-by-step explanation:

Using the formulas

V=43πr3

d=2r

solving for v

V=16πd3=16·π·153≈1767.14587cm³

hope i helped plz mark me brainlest

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3 years ago

A sequence is defined by the recursive function f(n + 1) =1/3 f(n). If f(3) = 9 , what is f(1) ?

USPshnik [31]

<h3>A sequence is defined by the recursive function then f(1) is 81</h3>

<em><u>Solution:</u></em>

Given that,

A sequence is defined by the recursive function:

$f(n+1) = \frac{1}{3} \times f(n)$ ------ eqn 1

Given that,

$f(3) = 9$

<em><u>Substitute n = 2 in eqn </u></em><em><u>1</u></em>

$f(2 + 1) = \frac{1}{3} \times f(2)\\\\f(3) = \frac{1}{3} \times f(2)\\\\Substitute\ f(3) = 9\\\\9 = \frac{1}{3} \times f(2)\\\\f(2) = 27$

<em><u>Substitute n = 1 in eqn 1</u></em>

$f(1 + 1) = \frac{1}{3} \times f(1)\\\\f(2) = \frac{1}{3} \times f(1)\\\\Substitute\ f(2) = 27\\\\27 = \frac{1}{3} \times f(1)\\\\f(1) = 27 \times 3\\\\f(1) = 81$

Thus f(1) is 81

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3 years ago

What is the simplified form of this expression, written in scientific notation?

Simora [160]

Do me to answer the question for you or explain?

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4 years ago

9.3*10^4 over -3*10^11 in scientific notation

trasher [3.6K]

=9.3*10^4 / -3 * 10^11

= -3.1 * 10^-7

4 0

3 years ago