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3 years ago

8

On three consecutive flips of a coin, what is the probability that all three produce the

1 answer:

natulia [17]3 years ago

7 0

Probability of 1/4

2 possibilities x 2 possibilities x 2 possibilities = 8 total possibilities:
Heads, Heads, Heads
Heads, Heads, Tails
Heads, Tails, Tails
Heads, Tails, Heads
Tails, Tails, Tails
Tails, Tails, Heads
Tails, Heads, Heads
Tails, Heads, Tails

2 of which result in all of the same outcome:
Heads, Heads, Heads
Tails, Tails, Tails

2 results/ 8 possibilities = 2/8 = 1/4

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Apply the distributive property to factor out the greatest common factor.<br> 24 + 18+ =

irina [24]

Answer:

42

Step-by-step explanation:

there is no parenthesis so all that is left is to add the 2 numbers together

8 0

3 years ago

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The triangle has a perimeter of 65 feet. What are the lengths of sides l,m,<br> and n<br> ?

kenny6666 [7]

Answer:

l = 10 feet, m = 30 feet and n = 25 feet

Step-by-step explanation:

The attached figure shows a triangle in which three sides as as follows :

$l=\dfrac{1}{3}m$ , m and $n=l+m-15$

Perimeter of triangle is 65 feet.

Perimeter = sum of all sides

$l+m+n=65$

put the value of n

$l+m+l+m-15=65\\\\2l+2m=80\\\\l+m=40$

Now put the value of l

$\dfrac{1}{3}m+m=40\\\\\dfrac{4}{3}m=40\\\\m=30\ \text{feet}$

⇒ $l=\dfrac{1}{3}\times 30=10\ \text{feet}$

And

$n=10+30-15=25\ \text{feet}$

Hence, l = 10 feet, m = 30 feet and n = 25 feet.

6 0

3 years ago

Find the value of x so that the line passing through (x, 10) and (-4, 8) has a slope of 2/3

kogti [31]

<u>Answer:</u>

x = -1

<u>Step-by-step explanation:</u>

We are given the following two points from which the line passes and has a slope of $\frac{2}{3}$ .

We are to find the value of x.

Slope = $\frac { y _ 2 - y _ 1 } { x _ 2 - x _ 1 }$

$\frac{2}{3}$ = $\frac{10-8}{x-(-4)}$

$\frac{2}{3}$ = $\frac{2}{x+4}$

By cross multiplication:

$2(x+4)=3 \times 2$

$2x+8=6$

$2x=-2$

x = -1

3 0

4 years ago

Read 2 more answers

A survey showed that 9 every 25 students like dogs while 13th of every 20 students like cats. How many more of the students like

lilavasa [31]

Answer:

29/100 (Every 100 students, 29 more students like cats than dogs)

Step-by-step explanation:

First we need to put these numbers in fractions

The fraction that represents students that like dogs is 9/25

The fraction that represents students that like cats is 13/20

Now, we just need to subtract the fraction of cats by the fraction of dogs:

13/20 - 9/25

To do that, we need to make the denominators equal. We do that making multiplying the first fraction by 5 and the second by 4, so we have:

13/20 = 65/100

9/25 = 36/100

Then, subtracting then, we have:

65/100 - 36/100 = 29/100

So every 100 students, 29 more students like cats than dogs.

6 0

3 years ago

Find the coordinates of the midpoint of a segment with the given<br> endpoints.

DerKrebs [107]

Answer:

Step-by-step explanation:

(7+4)/2 = 11/2 = 5.5

(1-1)/2 = 0/2 = 0

(5.5, 0)

answer is C

3 0

3 years ago

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