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Aliun [14]
3 years ago
9

The sum of the measures of the interior angles in a convex polygon is 1,260°. How many sides does the polygon have?

Mathematics
2 answers:
Wittaler [7]3 years ago
8 0

Answer:

C

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides , thus

180 (n - 2) = 1260 ( divide both sides by 180 )

n - 2 = 7 ( add 2 to both sides )

n = 9

krek1111 [17]3 years ago
5 0
C. 9
Step by step explanation
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Marco puts his coins into stacks. Each stack has 10 coins.
Harrizon [31]

Answer:

Marco has $57.50 in total.

Step-by-step explanation:

17 x 10 = 170 quarters

170 x 0.25 = $42.50

11 x 10 = 110 dimes

110 x 0.10 = $11.00

8 x 10 = 80 nickels

80 x 0.05 = $4.00

3 0
2 years ago
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Step-by-step explanation: this is an answer your teacher would love trust me ;)

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2 years ago
What is the inverse of the function h(x)=\dfrac{5}{2}x+4h(x)= 2 5 ​ x+4h, left parenthesis, x, right parenthesis, equals, start
Phantasy [73]

Answer:

The inverse of the function h(x) is h^{-1}(x)=\frac{2}{5}x-\frac{8}{5}.

Step-by-step explanation:

The given function is

h(x)=\dfrac{5}{2}x+4

Replace h(x) by y.

y=\dfrac{5}{2}x+4

Interchange x and y.

x=\dfrac{5}{2}y+4

Subtract 4 from both sides to isolate variable y,

x-4=\dfrac{5}{2}y

Multiply both sides by 2.

2x-8=5y

Divide both sides by 5.

\frac{2}{5}x-\frac{8}{5}=y

Replace y by h⁻¹(x).

h^{-1}(x)=\frac{2}{5}x-\frac{8}{5}

Therefore the inverse of the function h(x) is h^{-1}(x)=\frac{2}{5}x-\frac{8}{5}.

6 0
3 years ago
Read 2 more answers
BRAINLIEST + POINTS!<br><br> GOOD MATHEMATICIANS HELP ASAP PLEASE
larisa86 [58]

So I went from graph to slope intercept, So you take your x(Fat(g)) and your y(Calories) to solve.

The slope-intercept form for a line with the coordinates of (25,590) and (44,830) is:

y= 12.63x + 274.21

(results are in decimal form, rounded to the nearest 100th)

For Example: y=12.63(125)+274.21

y=1,852.96

8 0
3 years ago
I really need math help.
fenix001 [56]

When you see the 'line' is increasing starting from 0 to 2 hours, this indicates that the person on the graph is riding up a hill. This is known as positive acceleration or constant positive acceleration.

Where you see the 'line' stays the same 2 to 5 hours, this can indicate that the bike rider is doing one or two things. One thing the biker could be doing is taking a rest, and the other could be that the biker is riding at a leveled ground. This could be known as having constant velocity or zero acceleration.

Finally, where the 'line' is decreasing from 5 to 6 hours, this can indicate that biker is riding, possibly, down a hill. This is known as negative acceleration.

And of course, when the 'line' is going up again from 6 to 7 hours, this indicates that the biker is riding up a hill or increasing his speed. This is known as positive acceleration or constant positive acceleration.

•

•

- Marlon Nunez

4 0
3 years ago
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