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3 years ago

Three cards are chosen from a deck of 52 playing cards whit replacement. what is the probability every card will be a hearth?

1 answer:

7 0

You have 13 cards that are hearts and a deck of 52. So you do

13/52(fraction) x 13/52 (fraction) x 13/52(fraction) = 1/64 simplified answer

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There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter.

Alika [10]

Answer:

5 meters

Step-by-step explanation:

If in 1 inch have 2.54 centimeters, in 197 inches will have:

197×2.54 = 500.38 centimeters

If 100 centimeters are 1 meter, 500 centimeters will have 5 meters, so 197 inches have 5 meters

3 0

3 years ago

Which pair are equal trig values? A) tan 45° and sin 45° Eliminate B) sin 40° and sin 50° C) sin 36° and cos 54° D) cos 65° and

ira [324]

Answer:

Step-by-step explanation:

note that sin x = cos(90 - x ) ← Cofunction identity

If x = 36 then 90 - x = 90 - 36 = 54

Hence sin 36° = cos 54° → C

3 0

3 years ago

What is the common ratio of the geometric sequence below? –2, 4, –8, 16, –32, ...

SOVA2 [1]

Answer:

The common ratio of the geometric sequence is:

$r=-2$

Step-by-step explanation:

A geometric sequence has a constant ratio 'r' and is defined by

$a_n=a_1\cdot r^{n-1}$

where

aₙ is the nth term

a₁ is the first term

r is the common ratio

Given the sequence

$-2,\:4,-8,\:16,\:-32,\:...$

Compute the ratios of all the adjacent terms: $r=\frac{a_n+1}{a_n}$

$\frac{4}{-2}=-2,\:\quad \frac{-8}{4}=-2,\:\quad \frac{16}{-8}=-2,\:\quad \frac{-32}{16}=-2$

The ratio of all the adjacent terms is the same and equal to

$r=-2$

Therefore, the common ratio of the geometric sequence is:

$r=-2$

5 0

3 years ago

Find f(2) if f(x)=(x+1)^2

Eva8 [605]

Answer:

Step-by-step explanation:

f(2), if f(x)=(x+1)^2

x=2

(2+1)^2

3^2=3x3

6 0

2 years ago

Read 2 more answers

Hi my name is Jasmin I've been having trouble with math. I'm learning how to Multiply fractions, I want to know how to get the c

Keith_Richards [23]

Attached a picture
you may ask any question????

4 0

3 years ago

Read 2 more answers