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3 years ago

Find the length of KL 14 42

Mathematics

1 answer:

cluponka [151]3 years ago

5 0

Can you please show something, I can not solve it without something to look at, but I believe the answer may be 28.

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Your sweet new bicycle has 2 front sprockets and 11 rear sprockets. Each distinct combination of a front sprocket with a rear sp

Naddika [18.5K]

Answer:

Your bicycle has 22 gears.

Step-by-step explanation:

The number of gears in the bycicle is the number of combinatiors of a front sprocket and a rear sprocket.

For each front sprocket, there are 11 rear sprockets. There are 2 front sprocts.

So, the number of gears that your bicycle has is

2*11 = 22.

8 0

3 years ago

Explain how you could find the volume of a cube that has an edge of e

soldi70 [24.7K]

The volume is the area of the base times the height.
The area of the base is e squared. Times the height, e, would be e cubed.
$e^{3}$

Hope this helps.

6 0

3 years ago

Please help me with this

mafiozo [28]

Answer:

Step-by-step explanation:

Let:

s - side of the square

d - diameter of the circle

r - radius of a circle

C - circumeference of the circle

AC - area of the circle

AS - area of a square

The formula of a perimeter of a square:

P = 4s

We have P = 40cm.

Substitute:

4s = 40 divide both sides by 4

s = 10 cm

The length of the diameter of the circle inscribed in the square is equal to the length of the side of the square.

Therefore d = s → d = 10 cm.

The length of the circle diameter is two lengths of the circle radius.

Therefore d = 2r → r = d : 2 → r = 10 : 2 = 5 cm.

The formula of a circumference of a circle:

C = dπ.

Substitute d = 10cm, and π = 3.14.

C = 10(3.14) = 31.4 cm.

The formula of an area of a circle:

AC = πr²

Substitute r = 5cm and π = 3.14

AC = 3.14(5²) = 3.14(25) = 78.5 cm².

The formula of an area of a square:

AS = s²

Substitute s = 10 cm

AS = 10² = 100 cm²

6 0

4 years ago

Use the distributive property to generate an equivalent expression to find the perimeter of the square? 4(3y +5)

ra1l [238]

First you do 4 * 3y then 4 *5 and you get 12y + 20

5 0

4 years ago

Directions: Answer true or false. If false, provide a counterexample.

Arisa [49]

Natural numbers are closed under division: false.

A set is closed under a certain operation if the results of that operation are always inside that set.

So, if natural numbers were closed under division, the division of two natural numbers would always be a natural number.

You have plenty of counterexamples, to pick one you may divide any odd number by 2: 5/2 is not a natural number.

Negative numbers are closed under addition: true.

Let $m,n$ be two positive numbers. So, $-m,-n$ are two negative numbers. Their sum is

$(-m)+(-n)=-(m+n)$

And since $m+n$ is positive, we deduce that $-(m+n)$ is negative, so the sum of two negative numbers is still negative.

Prime numbers are closed under subtraction: false.

This would mean that the subtraction of two primes is also a prime. Again, there are many counterexamples: 7 is prime and so is 3, but their difference 7-3 is 4, which is not prime.

7 0

3 years ago