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3 years ago

10

a coin is tossed 80 times, it lands on heads 30 times and on tails 50 times. which three statements (shown below) are correct wh

en comparing the experimental and theoretical probability?

1 answer:

lakkis [162]3 years ago

5 0

Answer:

Its A C and D

Step-by-step explanation:

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H = {(2, 5), (3, 5), (4, 5), (5, 5), (6, 5)} Is H a function and why?

Lorico [155]

Answer:

h is a function

Step-by-step explanation:i know that h is a function i just dont know why

7 0

3 years ago

Josh can paint a whole room in m hours while Kevin can paint a whole room in n hours. How many parts of the room can they paint

Leona [35]

<h3>Answer: (m+n)/(mn)</h3>

Work Shown:

Josh:

1 room = m hours

1/m room = 1 hour

Kevin:

1 room = n hours

1/n room = 1 hour

We see that the rates for Josh and Kevin are 1/m and 1/n respectively. This is the amount of a room they paint in one hour. Combine the fractions

1/m + 1/n = n/(mn) + m/(mn) = (n+m)/(mn) = (m+n)/(mn)

The expression (m+n)/(mn) represents how much of the room they get painted in 1 hour. This is if they work together and it assumes neither worker slows the other one down.

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3 years ago

∆ABC is translated 6 units up and 3 units left to create ∆A'B'C'.

guapka [62]

The correct answer is 1

4 0

3 years ago

¿What is 30% of 80?

natka813 [3]

Turn the percentage into a decimal

30% = 0.3

Multiply.

80 * 0.3 = 24

Best of Luck!

3 0

3 years ago

Read 2 more answers

Complete the square to factor X^2 +10X=-8

ella [17]

Answer: $x=\sqrt{17}-5$ and $x = -\sqrt{17}-5$

Step-by-step explanation:

Alright, lets get started.

The given equation is :

$x^{2} +10x = -8$

Adding 8 in both sides, it will become

$x^{2} +10x + 8 = -8 +8$

$x^{2} +10x + 8 = 0$

To make it perfect square, we need to add 25 and subtract 25

$x^{2} +10x + 8 +25-25= 0$

$x^2+10x+25+8-25=0$

$(x+5)^2+8-25=0$

$(x+5)^2-17=0$

Adding 17 in both sides

$(x+5)^2=17$

taking square root

$x+5=\sqrt{17}$

So,

$x=\sqrt{17}-5$ and $x = -\sqrt{17}-5$ .. Answer

Hope it will help :)

7 0

3 years ago

Read 2 more answers