MATHEMATICS HIGH SCHOOL

If there are 13 values in a data set in order from smallest to largest, what is the third quartile of the data set?A. The mean of the 10th and 11th values
B. The mean of the 8th and 9th values
C. The mean of the 7th and 8th values
D. The mean of the 9th and 10th values

Answers

Answer 1
Answer: Third quatile position is given by: Q3 position = 3/4 (N) where N is the number of data set.
Q3 position = 3/4 ^ 13 = 9.75 (i.e. between the 9th and 10th values)

Answer: D [The mean of the 9th and 10th values]

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Answers

C. Hope this helps :)

Two sides of a triangle measure 8 cm and 15 cm. which could be the length of the third side?

Answers

something grater than 23.

Answer:28

Step-by-step explanation:

Can someone please help me with this? Please explain

Answers

Do you remember that the circumference of every circle is

    Circumference  =  (pi) times (the circle's diameter)                ?

Well, before we get to work on the problem, let's take this big hairy
gigantic complicated formula, and divide each side by (pi):

     the circle's diameter = (circumference) / (pi)  .

In the problem, you're given the circumference, you're told to use 3.14 for (pi),
and you're asked to find the diameter.

I'm pretty sure that you can handle it from this point.
circumference of the garden (circle): 2\pir = 81.64

r = 81.64 / (2x3.14)

diameter = 2 x radius: 
d= 2r
d= 2(81.64)/(2x3.14)
d= 81.64/3.14
d= 26

In right triangle XYZ, the tangent of acute angle X is 4. What is the secant of angle X?

Answers

Answer:

The secant of angle x; sec x = √17

Step-by-step explanation:

Here, given the tangent of an angle, we want to find the value of the secant

Mathematically;

sec^2 x = 1 + tan^2 x

This is from trigonometric identity

Thus;

sec x = √(1 + tan^2 x)

According to the question;

tan x = 4

So tan^2 x = 4^2 = 16

Thus;

sec x = √1 + 4^2

sec x = √17

What is the product? assume x>0 (√3x + √5) (√15x +2√30

Answers

The first step for solving this expression is to multiply the parenthesis.
√(45) x^(2) + 2√(90) x + √(75)x + 2√(150)
Simplify the first radical.
3√(5) x^(2) + 2√(90) x + √(75)x + 2√(150)
Simplify the second radical.
3√(5) x^(2) + 2X3√(10) x + √(75)x + 2√(150)
Simplify the third radical.
3√(5) x^(2) + 2X3√(10) x + 5√(3)x + 2√(150)
Simplify the final radical.
3√(5) x^(2) + 2X3√(10) x + 5√(3)x + 10√(6)
Lastly,, calculate the product of 2 × 3√(10)x to get your final answer.
3√(5) x^(2) + 6√(10) x + 5√(3)x + 10√(6)
Let me know if you have any further questions.
:)

Answer: B: 3x√5+6√10x+5√3x+10√6x

Step-by-step explanation:

2x plus 4 in vertex form

Answers

Vertex form only applies to quadratics. A quadratic is a polynomial with 2 being the largest exponent. I don't see any x^2 term here. Please check the problem to make sure that it's typed correctly. 
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