3 years ago

Three coins are tossed. find the probability that two lands on heads

Mathematics

1 answer:

NeX [460]3 years ago

8 0

Only 1 coin lands on tales of 2 coins landed on heads

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PLease help me quickly

Mnenie [13.5K]

Answer:

3rd option

Step-by-step explanation:

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3 years ago

Use distributive property to find the product of (m+3)(m+7)

tensa zangetsu [6.8K]

<span>m*m+m*7+3*m+3*7
Answer= </span>m^2+10m+21

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3 years ago

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Kevin is 333 times as old as Daniel. 444 years ago, Kevin was 555 times as old as Daniel. How old is Kevin now?

My name is Ann [436]

Let D be Daniel's present age, then we can represent Kevin's present age as 3D because Kevin is 3 times as old as Daniel.

We can write an expression for Daniel's age 4 years ago as D-4 and Kevin's age 4 years ago as 3D-4.

We are told that 4 years ago Kevin was 5 times as old as Daniel. We can write this information as:

$3D-4=5\cdot(D-4)$

Now let us solve our equation to find Daniel's present age.

$3D-4=5D-20$

$-4+20=5D-3D$

$16=2D$

$D=\frac{16}{2}=8$

Daniel's present age is 8 years. Now we will multiply 8 by 3 to get Kevin's present age as Kevin is 3 times old as Daniel.

$\text{Kevin's present age}=8\cdot3=24$

Therefore, Kevin is 24 years old now.

8 0

3 years ago

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Evaluate the following function for x = 4: h(x) = 7x + 15.

Lesechka [4]

Answer:

Step-by-step explanation:

If x = 4, then plug in an x in the given equation

7(4) + 15 = 43

Therefore h(4) = 43

I hope this helps! :)

7 0

3 years ago

Convert 5^1 and 4^11 to inches and feet

sergiy2304 [10]

Answer:

64 in

Step-by-step explanation:

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3 years ago