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IgorC [24]
3 years ago
14

Write each percent as a decimal and as a mixed number or fraction in simplest form 400%

Mathematics
1 answer:
Drupady [299]3 years ago
7 0
400 as a decimal would be 4.0, as a fraction would be 4.
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Someone Please Help!!! <br> Find the radian measure of an angle of -280 degrees
SCORPION-xisa [38]
<span>Answer: -4.88691778Solution:1.Write down the number of degrees you want to convert to radians   Given Degree = -280° The formula to convert degrees to radian measure is:Radian =  degree x π/180 2. Multiply the number of degrees by π/180. Think of it like multiplying two fractions: the first fraction has the number of degrees in the numerator and "1" in the denominator, and the second fraction has π in the numerator and 180 in the denominator. -280 x π/180 = -280π/1803. Find the largest number that can evenly divide into the numerator and denominator of each fraction and use it to simplify each fraction. The largest number for 280 is 20.-280 x π/180 = -280π/180 ÷ 20/20 = -14π /9 4. Then multiply the numerator by 3.14159 because pi or π  is equivalent to 3.14159, -14x 3.14159= -43.982265. To get the radian measure, we will divide -43.98226 by 9. -43.98226/9= -4.88691778
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5 0
2 years ago
Read 2 more answers
In 1980, in Great Falls, Montana, the temperature rose from 32 °F to 15 °F in seven minutes. How much did the temperature increa
Gnom [1K]
17 degrees Fahrenheit
8 0
3 years ago
Please help me with #7
Dominik [7]

Step-by-step answer:

This is a regular heptagon, means it has 7 <em>congruent</em> sides and 7 <em>congruent </em>vertex angles.

To work with polygons, there is a very important piece of information that you must know to solve the majority of related problems.

This is:

sum of exterior angles of polygons = 360 degrees.

If you don't remember the 360 degrees, think of the sum of exterior angles of an equilateral triangle, which is 3*(180-60)=3*120=360!  It works!

For a regular heptagon, c = 360/7=51.43 degrees approx.

This means that each vertex angle measures

vertex angle = 180-c

So since 2d+the vertex angle = 360, we have

2d+(180-c)=360

solve for d:

2d=360-(180-c)=180+c

d=(180+c)/2=90+c/2=115.71 degrees. (approx.)

8 0
3 years ago
4. If 90 is 30% of a number, what is 200% of the number?
Softa [21]

Answer:

60

Step-by-step explanation:

90=30%x

x=30

200%x=2x=60

6 0
2 years ago
Read 2 more answers
Green River State Park has two popular hiking trails: Overlook Trail and High Ridge Trail. On one particular day, 80 hiking grou
Kipish [7]

Answer:

B. Events H and C are dependent and P(H|C) < P(C|H)

Step-by-step explanation:

The ratios of groups with children to hiking groups on the trail are different for the two trails.

P(H|C) = 15/45 = 1/3

P(C|H) = 15/40 = 3/8

1/3 < 3/8 so the comparison of choice B is appropriate.

4 0
3 years ago
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