All categories

3 years ago

Can someone please help

Mathematics

2 answers:

Masteriza [31]3 years ago

8 0

19 hours is your answer

romanna [79]3 years ago

6 0

19 hours is the correct answer

You might be interested in

A dance CD has 5 songs on it - 2 are slow, and 3 are fast. When the DJ at a dance plays a song it is not played again. All songs

iris [78.8K]

<span>Combinations: 5!/2!3!=10

</span>possibility: 1/10 = 2/20

8 0

3 years ago

Directions: Write your own recipe for trail mix with a catchy name that will make people want to eat it. You can also create a s

tatiyna

Is this a joke?\ that makes no snese

6 0

3 years ago

What is the distance between the lines y = 2x and y = 2x+5? Round your answer to the nearest tenth.

Ilia_Sergeevich [38]

The distance between both lines is 2.24 units

Step-by-step explanation:

There is no straight method to find the distance between two lines. The distance can be found out by finding a point on one line and then finding the distance of that point from the other line. The y-coordinate of point is obtained by putting any value of x in equation . The x and y combined give us the point.

Given

$y=2x\\Putting\ x=1\\y=2(1)\\y=2\\So, the\ point\ on\ y=2x\ is\ (1,2)$

We have to find the distance of this point from y=2x+5

$y=2x+5\\Subtracting\ y\ from\ both\ sides\\y-y=2x+5-y\\2x-y+5=0$

The formula for finding distance of a point (x,y) from a line is:

$d=\frac{|Ax+By+C|}{\sqrt{A^2+B^2}}$

A=2

B=-1

C=5

Putting the values in the formula

$d=\frac{|(2)(1)+(-1)(2)+5|}{\sqrt{(2)^2+(-1)^2}}\\d=\frac{|2-2+5|}{\sqrt{4+1}}\\d=\frac{|5|}{\sqrt{5}}\\d=\frac{5}{\sqrt{5}}\\d=2.236\ units$

Rounding off will give: 2.24 units

The distance between both lines is 2.24 units

Keywords: Equations of lines

Learn more about distance in lines at:

#LearnwithBrainly

7 0

3 years ago

What is the area of this shape

Korolek [52]

Answer: 54cm

Step-by-step explanation:

We can break the shape up into a right angled triangle and a square;

Area of square = 6^2 = 36

Area of triangle = 1/2 x 6 x 6 = 18

We add both the answers up at get 54.

8 0

3 years ago

a person who weighs 100 pounds on earth weights 16.6 Ib. on the moon what is the independent variable

hram777 [196]

To find weight you use the equation w=m*a. W is weight, m is mass, a is acceleration due to gravity. Since acceleration due to gravity is different on the moon than it is on earth that is the dependant variable. Since the persons mass does not change that is the independent variable

3 0

3 years ago