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2 years ago

11

How do you find the 1st, 2nd and 3rd quartiles of a given data set?

1 answer:

Maru [420]2 years ago

7 0

Answer:

The first quartile, denoted by Q1 , is the median of the lower half of the data set. This means that about 25% of the numbers in the data set lie below Q1 and about 75% lie above Q1 . The third quartile, denoted by Q3 , is the median of the upper half of the data set

Step-by-step explanation:

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I NEED HELP PLEASE, THANKS! :)

KIM [24]

Answer: tan(14x)

<u>Step-by-step explanation:</u>

Consider the Sum Formula for tan:

$tan(A + B)=\dfrac{tan(A)+tan(B)}{1-tan(A)(tan(B)}\\\\\\tan(9x+5x)=\dfrac{tan(9x)+tan(5x)}{1-tan(9x)(tan(5x)}\\\\\\\large\boxed{tan(14x)}=\dfrac{tan(9x)+tan(5x)}{1-tan(9x)(tan(5x)}$

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2 years ago

Read 2 more answers

Factor:<br> 4b2 - 12b + 9

Vikentia [17]

Answer:

(2b-3)²

Step-by-step explanation:

The square of a binomial is ...

(p - q)² = p² - 2pq + q²

The fact that the first and last terms are perfect squares suggests that you might want to look to see if the middle term matches this form. It does.

For p² = 4b², p=2b.

For q² = 9, q = 3.

Then 2pq = 2(2b)(3) = 12b.

So, the factoring is ...

4b² -12b +9 = (2b -3)²

5 0

3 years ago

What percent of salons in Jamesville employ 18 or fewer stylists?

8090 [49]

Answer:

100%

Step-by-step explanation:

I got this wrong and i clicked until i got %100 try it:O)

6 0

2 years ago

Solve by elimination 3×+11y=4,-2×-6y=0

gizmo_the_mogwai [7]

3x + 11y = 4

2x + 6y = 0

I got
15/2, -5/4

6 0

2 years ago

Use the quadratic function to predict y if x equals 7.<br> y = 2x2 – 3x + 3

zheka24 [161]

Answer:

80

Step-by-step explanation:

$f(7)=2(7)^{2} -3(7)+3$

$= 2(49)-21+3\\=98-21+3\\=80\\$

7 0

2 years ago