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777dan777 [17]
3 years ago
13

10 points, please help

Mathematics
1 answer:
weqwewe [10]3 years ago
3 0

Answer:

88.5

Step-by-step explanation:

(90+82+81+2x)/5=86

90+82+81+2x=430

2x=177

x=88.5

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Given the polygon below, solve for y. Explain your process.
Virty [35]

Answer:

80°

Step-by-step explanation:

The sum of the interior angles in a hexagon is 720°. This means that:

y + (2y - 20) + (2y - 20) + y + (2y - 20) + (2y - 20) = 720° - we can simplify this

10y - 80 = 720° - now, add 80 to both sides

10y = 800 - finally, divide both sides by 10

y = 800 ÷ 8 = 80°

Hope this helps!

5 0
3 years ago
Read 2 more answers
43.586 to the nearest tenth hundredth and one <br> .
kiruha [24]

Answer:

if you rounded it to the tenth it will be 43.6 hundredth 43.590 one i belive its 44.000

Step-by-step explanation:

7 0
4 years ago
I need help please it gives a hint I don’t get it
devlian [24]

Answer:

Lower quartile: 72

Upper quartile: 84

Step-by-step explanation:

Follow the instructions in the hint to solve the problem.

First, divide the data set into halves:

70, 70, 72, 75, 79

80, 80, 84, 89, 95

Now, find the median of the two sets.  The median of set #1 is 72, as that is the number in the middle of the data.

The median of set #2 is 84 for the same reason.

Upper and lower quartiles are just different words for upper and lower medians. The upper quartile is the higher number, and the lower quartile is the lower number.

7 0
4 years ago
How to find out the value of the lettered sides
umka2103 [35]

Step-by-step explanation:

  • a

sin 46°= a/12.8

a = sin46° * 12.8 = 9.20

  • b

cos59°=b/16.8

b = cos59°*16.8 = 8.65

3 0
3 years ago
Read 2 more answers
A test has thirty questions worth 100 points. The test consists of True/False questions worth 3 points each and multiple choice
Vika [28.1K]
So let's break this question down.
You need a bit of both, right? Well we need to calculate how many multiple choices we can do whilst having true/false questions, and not going over or under on points.

So, let's pick a random number, 5. So let's do 8x5, that equals 40.
ohmygoditsrightiwasseriouslyjustguessing
Ok so now we have our number, 5 multiple choice questions. 
The true/false questions should be easy, just do 3x20 and you get 60.

ANSWER: 5 
5 0
4 years ago
Read 2 more answers
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