All categories

3 years ago

If you roll two fair six-sided dice, what is the probability that the sum is 9 or higher?

Mathematics

2 answers:

nlexa [21]3 years ago

7 0

Answer:

On Khan Academy its 5/18

Step-by-step explanation:

grin007 [14]3 years ago

6 0

There are 36 different combos for the two: 6 possibilities for the first die times 6 for the second.

Out of those 36, 10 have a sum of 9 or higher:
3&6, 4&6, 4&5, 5&4, 5&5, 5&6, 6&3, 6&4, 6&5, 6&6

The probability is 10/36, which reduced is 5/18.
As a decimal it is 0.2 $\overline{7}
$ and as a percent it is 27. $\overline{7} 
$ %.
Hope this helps!

You might be interested in

Twelve eggs cost $2.04. How much would 18 eggs cost?

lyudmila [28]

1 dozen eggs cost 2.04 and your adding another half dozen so your adding half the price of the dozen egg.
2.04/2=1.02
2.04+1.02=3.06
So 18 eggs costs $3.06

Hope this helps!! :))

7 0

3 years ago

Read 2 more answers

HELP ME PLEASE AND PLEASE ATTACH THE ANSWER BELOW (NO LINKS!!)

den301095 [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Two garen plots are to have the same area. One is square and one is rectangular. The rectangular plot is 2 meters wide and 32 me

Brrunno [24]

Answer:

Length l = 8 m

The length of one side of the square is 8 m

Step-by-step explanation:

The area of a rectangle is;

Area = length × breadth

Given;

Length = 32 m

Breadth = 2 m

Area of the rectangle can be expressed as;

A = 32 × 2 = 64 m^2

Area of a square is;

Area = length × length = l^2

Since the area of the square is equal to the area of the rectangle, then the area of the square is 64 m^2

A = l^2

64 = l^2

l = √64

l = 8 m

The length of one side of the square is 8 m

5 0

3 years ago

What is the vertex of the function f (x) = x2 - 10x? (5,-25) (5.-75) (-5,75) (-5,25)

JulsSmile [24]

Option A

The vertex is (h, k) = (5, -25)

Solution:

Given function is:

$f(x) = x^2-10x$

The vertex form is given as:

$y = a(x-h)^2+k$

<h3>where (h, k) is the vertex</h3>

Rewrite the equation in vertex form

$f(x) = x^2-10x$

Complete the square for $x^2-10x$

Use the form $ax^2+bx+c$ to find the values of a, b, c

a = 1 , b = -10, c = 0

Consider the vertex form of a parabola

$a(x+d)^2+e$

Substitute the values of a and b into the following formula to find "d" :

$d = \frac{b}{2a}\\\\d = \frac{-10}{2 \times 1}\\\\d = -5$

Find the value of "e" using the formula,

$e = c - \frac{b^2}{4a}\\\\e = 0 - \frac{(-10)^2}{4 \times 1}\\\\e = -25$

Substitute the value of a, d, e into vertex form

$a(x+d)^2+e\\\\1(x-5)^2-25\\\\(x-5)^2-25$

Set y equal to above equation

$y = (x-5)^2-25$

Compare the above equation with vertex form

$y = a(x-h)^2+k$

$y = (x-5)^2-25$

We find, h = 5 and k = -25

Thus the vertex is (h, k) = (5, -25)

7 0

4 years ago

Helpppp!!!!1

Rzqust [24]

Answer:

$7.76\times 10^6\ \text{inches}$

Step-by-step explanation:

We know that,

$1\ \text{inch}=1.578 \times 10^{-5}\ \text{miles}$

We need to convert 1225 miles to inches. It can be done as follows :

$1\ \text{mile}=\dfrac{1}{1.578 \times 10^{-5}}\ \text{inches}\\\\1225\ \text{miles}=\dfrac{1225}{1.578 \times 10^{-5}}\ \text{inches}\\\\=7.76\times 10^6\ \text{inches}$

So, there are $7.76\times 10^6\ \text{inches}$ in 1225 miles.

3 0

3 years ago