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2 years ago

What ratio represents the tangent of

Mathematics

2 answers:

stellarik [79]2 years ago

8 0

Answer:

Step-by-step explanation:

15/8

give me brainliest pls

sasho [114]2 years ago

5 0

15/8

Brainliest pls :D

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A study on the latest fad diet claimed that the amounts of weight lost by all people on this diet had a mean of 23.2 pounds and

erica [24]

Answer:

The standard deviation of the sampling distribution of sample means would be 0.8186.

Step-by-step explanation:

We are given that

Mean of population=23.2 pounds

Standard deviation of population=6.6 pounds

n=65

We have to find the standard deviation of the sampling distribution of sample means.

We know that standard deviation of the sampling distribution of sample means

= $\frac{\sigma}{\sqrt{n}}$

Using the formula

The standard deviation of the sampling distribution of sample means

= $\frac{6.6}{\sqrt{65}}$

$=0.8186$

Hence, the standard deviation of the sampling distribution of sample means would be 0.8186.

3 0

3 years ago

Part A: The area of a square is (9x2 − 12x + 4) square units. Determine the length of each side of the square by factoring the a

Sladkaya [172]

Answer:

Part A: The length of each side is $3x-2$ units long.

Part B: The dimensions are 5x-4 and 5x+4 units long.

Step-by-step explanation:

Part A:

--> $9x^2-12x+4$

--> Multiply 9 times 4 to see the factors of that product

--> 9 times4 = 36

Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36

Use the factor 6 and make it negative so -6

add another -6

Keep in mind that it is -6x

--> 9x^2-6x-6x+4

Separate the four terms into two different binomials

--> 9x^2-6x and -6x+4

Factor the binomials

With 9x^2-6x you can factor a 3x

So it will 3x(3x-2)

Do the same thing with -6x+4

You can factor out a -2

-2(3x-2)

The reason you factor out a -2 and not 2 is because it has to be same so in this case it is (3x-2)

Take the two numbers that you factored and put them to make an expression so (3x-2)

--> (3x-2)(3x-2) or (3x-2)^2

3x-2 is the length of each side so it is 3x-2 units long

Part B:

-->25x^2-16y^2

Use the difference of squares

take the square root of 25x^2

that is 5x

take the square root of 16y^2

that is 4y

write it in this way (5x+4y)(5x-4y)

These are the dimensions of the rectangle

3 0

2 years ago

The price of an item yesterday was $140. Today, the price fell to $119. Find the percentage decrease.

34kurt

Answer:

-15%

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

HELP PLEASE i just need the answer and if you could tell me how you did it I WILL GIVE 50 POINTS

lidiya [134]

Answer:

G 36

Step-by-step explanation:

Hope this helps. Pls give brainliest.

8 0

2 years ago

A company’s stock was selling at $25 a share. A month later , it was selling at $30 a share . What is the percent increase?

nirvana33 [79]

Answer: 20% increase

Step-by-step explanation:

30-25=5 solve for x (5*100)/25 = 20

4 0

2 years ago