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hoa [83]
3 years ago
10

What is -5(-2)not multiple choice just a box where I type it.​

Mathematics
1 answer:
frez [133]3 years ago
4 0

Answer:

10

Step-by-step explanation:

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Work out the number of sides of a regular polygon with the interior angle of 172 degrees.
Harman [31]
interior\ angle=\frac{(n-2)*180}{n}\\n-number\ of\ sides\\\\
172=\frac{(n-2)*180}{n}\ \ \ |*n\\
172n=180n-360\ \ \ |Subtract\ 180n\\
-8n=-360\ \ \ |Divide\ by\ -8\\
n=45\\\\
Number\ of\ side\ is\ equal\ to\ 45.
8 0
3 years ago
Shianne is looking up at the flag on the top of the sailboat she is sailing on. She is sitting 16 feet from the bottom
storchak [24]

Answer:

height of the flag from the bottom of the boat ≈ 32 ft (nearest foot)

Step-by-step explanation:

She is on her boat and the angle of elevation to the top of the flag is 58°. Her eyes her 6 ft above the bottom of the boat she is sailing on. The height of the flag from the bottom of the boat is the sum of the height of the flag and the remaining height from the horizontal line of sight upward to the flag top.

A right angle triangle was formed Shianne line of sight. The angle from her line of sight is 58° from the horizontal. Therefore,

the adjacent side of the triangle formed is 16 ft which is the distance from the boat to the flag.

adjacent side = 16 ft

opposite angle = ?

using tangential ratio

tan 58° = opposite/adjacent

tan 58° = h/16

cross multiply

h = 16 × 1.60033452904

h = 25.6053524647

height of the flag from the bottom of the boat = 25.6053524647  + 6 = 31.6053524647

height of the flag from the bottom of the boat ≈ 32 ft(nearest foot)

7 0
2 years ago
The table shows the time 50 students spent on their homework.
seraphim [82]

Answer: Mean = 52.8 mins

Step-by-step explanation:

We have lapses of 30 minutes, so we can write the average for each, this means that:

0 < t < 30 can be averaged to the middle of the range: 15 min.

Doing this, we have that:

7 students 15 min

27 students 45 min

12 students 75 min

4 students 105 min.

Now we can calculate the mean:

mean = (x1*n1 + x2*n2 + ...)/N

where x1 is the amount of time 1, and n1 is the number of students associated to that time and so on. N is the total number of students

Mean = (7*15min + 27*45min + 12*75min + 4*105min)/(7 + 27 + 12 + 4)

Mean = 52.8 mins

8 0
3 years ago
If you can't figure out all of them that's fine Im good with 2 being answered​
azamat

Answer:

9. He doesn't owe her anything back,since he already paid it in full price

10. >:((

11. She is 1.5 meters below sea level

12. She took $75.15 out of her account

Step-by-step explanation:

8 0
2 years ago
PLEASE HELP!!!
iragen [17]
Y is usage so set y to 0 and solve for x

y = -10x+100

0 = -10x +100
 subtract 100 from each side:
-100 = -10x

divide both sides by -10

x = -100 / -10

x = 10 hours
7 0
2 years ago
Read 2 more answers
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