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balandron [24]
3 years ago
9

What is the relationship between the degree measure of the angle formed by the straight edges of a section of a circle graph as

a percent of the data the section represents
Mathematics
1 answer:
Butoxors [25]3 years ago
7 0

Answer:

  degree measure = 360° × percent of data

Step-by-step explanation:

The ratio of the degree measure of a sector of a circle graph to 360° is the same as the ratio of the represented data to the whole amount of data.

The idea of a circle graph is that the area of the sector is proportional to the data being represented. That is, if the data represented is 10% of the whole, then the sector area is 10% of the whole. Sector area is proportional to the degree measure of its central angle, so the example sector would have a central angle of 10% of 360°, or 36°.

The ratio of the central angle of the sector to 360° is the same as the percentage of data that sector represents.

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Which of the following quantities are continuous?
Oxana [17]

Answer:

A. only II

Step-by-step explanation:

Mathematics calculus differentiates things into discrete and continuous. Discrete things have indivisible units, the example will be how many dogs in a village. There is no half dog, it's either one, two, etc. But the distance covered by train can be written as half miles, it's divisible unit.  

The number of books and bracelets also discrete, thus the answer is A.

4 0
3 years ago
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Estimate 15% tip on a dinner bill of $59.12 dollars by rounding the first bill amount to the nearest
Serga [27]

Answer:

tenth

Step-by-step explanation:

8 0
3 years ago
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1. Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of the
Sveta_85 [38]

Answer:

#1) y = -4x + 1; #2) parallel; #3) y = -1/2x + 5/2; #4) y = 2x + 4; #5) Never

Step-by-step explanation:

#1) We want a line that passes through (1, -3) and is parallel to y = 2-4(x-1).  First we simplify our equation using the distributive property:

y = 2-4(x-1) = 2-4(x) -4(-1) = 2-4x--4 = 2-4x + 4 = -4x + 6

Lines that are parallel have the same slope; this means we want a line through (1, -3) with a slope of -4.  Using point-slope form,

y-y_1=m(x-x_1)\\\\y--3=-4(x-1)\\\\y+3=-4(x)-4(-1)\\\\y+3=-4x+4\\\\y+3-3=-4x+4-3\\\\y=-4x+1

#2) We must first write our second equation in slope-intercept form by isolating the y term:

2x+y=7

Subtract 2x from each side"

2x+y-2x = 7-2x

y = -2x+7

This means the slope is -2; the slopes are the same, so the lines are parallel.

#3) The slope of our given equation is 2.  To be perpendicular, the second line must have a slope that is a negative reciprocal (flipped and opposite signs); this makes it -1/2.  Using point-slope form,

y-0=\frac{-1}{2}(x-5)\\\\y=\frac{-1}{2}(x)+\frac{-1}{2}(-5)\\\\y=\frac{-1}{2}x+\frac{5}{2}

#4) The slope of Main Street on the diagram, found by using rise/run, is 2.  This means the bike path will also have a slope of 2 in order to be parallel.  The park entrance is at (0, 4).  This makes the equation y = 2x+4.

#5) Two lines with the same slope are always parallel.  They are never perpendicular.

3 0
3 years ago
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Given the kite below, if NO = 5 and OM = 12, what is the value of NM?
tester [92]

Answer:

NM = 13

Step-by-step explanation:

pythagorean theorem: a^{2} + b^{2} = c^{2}

a or NO = 5

b or OM = 12

c or NM = ?

plug in what is known:

⇒ 5^{2} + 12^{2} = c^{2}

⇒ 25 + 144 = c^{2}

⇒ 169 = c^{2}

square root each side of the equation:

⇒ \sqrt{169} = \sqrt{c^{2} }

solve:

⇒ 13 = c

6 0
3 years ago
Find the slope of the line that contains the points:<br> (-4,3) and (4,9)
Stolb23 [73]
I believe the slope is 3/4

9-3 = 6
4 - (-4) = 8

Simplify to get 3/4
3 0
3 years ago
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