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nikitadnepr [17]

2 years ago

15

What is the interquartile range of the data set? {18, 17, 10, 25, 20, 20, 30, 18, 18, 30, 25} Enter the answer in the box. PLEAS

E HURRY UP

2 answers:

sasho [114]2 years ago

7 0

The interquartile is 21

Rzqust [24]2 years ago

7 0

Answer:

the actual answer is 7 xD

Step-by-step explanation:

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Use an algebraic equation to find the measures of the two angles described below. begin by letting x represent the degree measur

Lina20 [59]

Two angles are said to be supplement when their measure add up to 180 degrees.

Assume that the angle we are looking for is a and its supplement is s (I used s instead of x).

a + s = 180
a = 180 - s ......> equation I

We know that <span>the measure of the angle is eight times greater than its supplement.
This means that:
a = 8s ......> equation II

Substitute by equation II in equation I to get s as follows:
180 - s = 8s
180 = 9s
s = 20 degrees

Substitute in equation I to get the measure of the angle as follows:
a = 180 - s = 180 - 20 = 160 degrees

Based on these calculations:
The measure of the angle is 160 degrees
The measure of its supplement is 20 degrees</span>

4 0

3 years ago

If p=(-3,-2) and q=(1,6) are the endpoints of the diameter of a circle find the equation of the circle

stira [4]

Answer:

<em>The equation of the circle (x +1) )² +(y-(2))² = (2(√5))²</em>

<em> or </em>

<em>The equation of the circle x² + 2 x + y² - 4 y = 15</em>

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

Given points end Points are p(-3,-2) and q( 1,6)

<em>The distance of two points formula</em>

P Q = $\sqrt{x_{2} - x_{1})^{2} + ((y_{2} -y_{1})^{2} }$

P Q = $\sqrt{1 - (-3)^{2} + ((6 -(-2))^{2} }$

P Q = $\sqrt{16+64} = \sqrt{80}$

<em>The diameter 'd' = 2 r</em>

2 r = √80

= $\sqrt{16 X 5}$

= $4 \sqrt{5}$

<em> r = 2√5</em>

<em>Mid-point of two end points </em>

<em> </em> $(\frac{x_{1} + x_{2} }{2} , \frac{y_{1} +y_{2} }{2} ) = (\frac{-3+1}{2} ,\frac{-2 +6}{2} )$ <em></em>

<em> = (-1 ,2)</em>

<em>Mid-point of two end points = center of the circle</em>

<em> (h,k) = (-1 , 2)</em>

The equation of the circle

(x -h )² +(y-k)² = r²

<em> (x -(-1) )² +(y-(2))² = (2(√5))²</em>

<em> x² + 2 x + 1 + y² - 4 y + 4 = 20</em>

<em> x² + 2 x + y² - 4 y = 20 -5</em>

<em> x² + 2 x + y² - 4 y = 15</em>

<u><em>Final answer</em></u><em>:-</em>

<em>The equation of the circle (x +1) )² +(y-(2))² = (2(√5))²</em>

<em> or </em>

<em>The equation of the circle x² + 2 x + y² - 4 y = 15</em>

<em> </em>

6 0

3 years ago

If a = b, then ac = bc. This is called the ________ ________ of equality. what is it?

aniked [119]

This is called the <u>Multiplication property of equality.</u>

The multiplication property of equality states that whatever you multiply on one side, you must multiply the same quantity on the other side of the equation. In this case, variable c is multiplied to both sides of the equation.

6 0

3 years ago

Please answer and tell me how you did it

stira [4]

You know that there is a right angle which equals 90 degrees, you take 90 + 67 +37 which equals 194. You have 2 x's so it should equal 2x. Then you take 194 divided by 2, and you should have the answer to what x equals

4 0

3 years ago

The square root of 9 times x to the 6th power

ololo11 [35]

Answer:

531,441

Step-by-step explanation:

9 x 9 x 9 x 9 x 9 x 9 = 531,441

5 0

2 years ago

Read 2 more answers