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Ne4ueva [31]
3 years ago
13

What is the exterior angle of a pentagon

Mathematics
1 answer:
balu736 [363]3 years ago
5 0
The exterior angle of a pentagon is 72°
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Suppose that 35 people are divided in a random mannerinto two teams in such a way that one team contains10 people and the other
Alisiya [41]

To be precise, the size of your sample space is <span><span>(<span>2410</span>)</span><span>(<span>2410</span>)</span></span>. This number does go on the bottom of the fraction, and what goes on top is the size of the event. Break up the event into independent events 1. choose the 2 defective bulbs, and 2. choose the remaining 8 bulbs. I don't have much choice in event 1. There is only one way to choose both of the defective balls. In other words, <span><span>(<span>22</span>)</span><span>(<span>22</span>)</span></span> (choosing 2 defective bulbs from a set of 2 defective bulbs). For event 2, there are <span><span>24−2=22</span><span>24−2=22</span></span> nondefective bulbs, and I must choose <span>88</span> of them, so that's <span><span>(<span>228</span>)</span><span>(<span>228</span>)</span></span>. Finally, since events 1 and 2 are independent, we multiply the answers for the combined event: <span><span><span>(<span>22</span>)</span><span>(<span>228</span>)</span></span><span><span>(<span>22</span>)</span><span>(<span>228</span>)</span></span></span>

<span><span>P=<span><span><span>(<span>22</span>)</span><span>(<span>228</span>)</span></span><span>(<span>2410</span>)</span></span></span><span>P=<span><span><span>(<span>22</span>)</span><span>(<span>228</span>)</span></span><span>(<span>2410</span>)</span></span></span></span>

Or, since <span><span><span>(<span>22</span>)</span>=1</span><span><span>(<span>22</span>)</span>=1</span></span>,

<span><span>P=<span><span>(<span>228</span>)</span><span>(<span>2410</span>)</span></span></span><span>P=<span><span>(<span>228</span>)</span><span>(<span>2410</span>)</span></span></span></span>

Hope this helps!

7 0
3 years ago
Which property can be used to expand the expression -2(3/4x+7)?
Mademuasel [1]

Answer:

C

Step-by-step explanation:

The distributive property in algebraic terms is

a(b + c) = ab + ac

given the expression

- 2(\frac{3}{4} x + 7) ← multiply each term in the parenthesis by - 2

= - \frac{3}{2} x - 14

3 0
3 years ago
Read 2 more answers
Which equation represents a line with a slope of -6/11 and a Y intercept of -9
den301095 [7]

Answer:

y= -6/11x - 9

Step-by-step explanation:

y= mx+ b

5 0
3 years ago
The scale on a map reads 1 cm = 250 km. How far is the actual distance if the map distance measures 3.8 cm?
gogolik [260]

Answer:

950 km

Step-by-step explanation:

1 cm = 250 km

3.8 * 250  = 950

5 0
3 years ago
Read 2 more answers
A) Graph the following two lines on the same rectangular coordinate system. Show all your working. You need to use the slope-int
Oksanka [162]
Graph a.

3x+2y=12
-3x -3x

2y=-3x+12
2/2y=(3x+12)/2

y=-1.5x+6

graph b.

4x-y=5
+y +y

4x=y+5
-5 -5

4x-5=y

c) 11 units is the difference between y-coordinates of graph a and y-coordinates of graph b.

e) at (6,-3) x=6 cuts into graph a

8 0
3 years ago
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