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2 years ago

Please help:)

Mathematics

1 answer:

Studentka2010 [4]2 years ago

6 0

Answer:

y+2 = (-1/2)(x-3)

Step-by-step explanation:

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How many ways can 5 friends sit together at the movies in 5 seats?

ss7ja [257]

Answer:

120

Step-by-step explanation:

The number of friends is 5 and there are 5 seats only. So , we can find it out with the help of permutations ,

$\implies ^n P_r = \dfrac{n! }{(n-r)!}$

⇒ 5! / (5-5)!

⇒ 5! / 1!

⇒ 5!

⇒ 5 × 4 × 3 × 2 × 1

⇒ 120

<h3>Hence there are 120 ways by which 5 friends sit together at the movies in 5 seats. </h3>

3 0

3 years ago

Find sin0, cos0, tan0

djverab [1.8K]

Answer:

sin(θ) = 12/13, cos(θ) = 5/13, tan(θ) = 12/5

Step-by-step explanation:

We need to find sine, cosine, and tangent of theta for this triangle.

First, define the different trigonometric functions:

- sine is opposite side to the angle divided by the hypotenuse (longest side not adjacent to the 90 degree angle)

- cosine is the adjacent side next to the angle divided by the hypotenuse

- tangent is the opposite side to the angle divided by the adjacent side

Now, look at theta (θ):

- the opposite side is marked 12

- the adjacent side is marked 5

- the hypotenuse is marked 13

So:

- sin(θ) = opposite / hypotenuse = 12/13

- cos(θ) = adjacent / hypotenuse = 5/13

- tan(θ) = opposite / adjacent = 12/5

Thus the answers are: sin(θ) = 12/13, cos(θ) = 5/13, tan(θ) = 12/5.

6 0

3 years ago

Read 2 more answers

An isosceles trapezoid has a perimeter of 37 centimeters. Its shorter base measures 3 centimeters and its longer base measures 4

koban [17]

Given:

An isosceles trapezoid has a perimeter of 37 centimeters. Its shorter base measures 3 centimeters and its longer base measures 4 centimeters. The two remaining sides have the same length.

We need to determine the lengths.

Length of the remaining sides:

Let the length of the sides of the isosceles trapezoid be x.

Let a be the length of the shorter base.

Let b be the length of the longer base.

Thus, we have;

$a=3, b=4$

The formula to determine the length of the sides is given by

$Perimeter = a+b+c+d$

Substituting the values, we get;

$37=3+4+x+x$

$37=7+2x$

$30=2x$

$15=x$

Thus, the length of the sides of the isosceles trapezoid is 15 centimeters.

6 0

3 years ago

Which expression is the simplest form of 4x^3 + x^2 + 2\left( {{x^3} - 3{x^2}} \right)4x

Allisa [31]

B. 6x^3 -5x^2
hopefully this helps :))

7 0

4 years ago

What is four fraction fifty plus three fractionfive

mina [271]

Answer:

17/25

Step-by-step explanation:

We assume you want the sum ...

4/50 + 3/5

= (2·2)/(25·2) + (3·5)/(5·5)

= 2/25 + 15/25

= 17/25

_____

Comment on the question

We prefer math symbols:

4/50 + 3/5 = ??

or, if you can't manage that, proper English:

four fiftieths plus three fifths.

3 0

4 years ago