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Triss [41]
3 years ago
12

A) If each interior angle measures 20, how many sides does the polygon have?

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0
A) I think part "A" should read "If each EXTERIOR angle..."
The number of sides is 18
B) Each interior angle = 160 degrees
C) 2,880 degrees
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Solve the following equation by factorisation 1 /x - 3 + 2 /x- 2 = 8 /x where x not equal to 0, 2, 3
schepotkina [342]

Answer:

x=−1

Step-by-step explanation:

8 0
2 years ago
Mandy is selling pancakes and waffles at her diner. On Monday she sold a total of 300 pancakes and waffles. If she charges $3 pe
elena-s [515]

Answer:

Mandy sold 250 pancakes and 50 waffles.

Step-by-step explanation:

From the information given, you can say that the sum of pancakes and waffles is equal to 300:

x+y=300

Also, the statement indicates that she charges $3 per pancake, $1 per waffle, and made a total of $800 and you can express this as:

3x+y=800

You have the following equations:

x+y=300 (1)

3x+y=800 (2), where:

x is the number of pancakes she sold

y is the number of waffles she sold

Now, you can solve for x in (1):

x=300-y (3)

Then, you can replace (3) in (2):

3(300-y)+y=800

900-3y+y=800

900-800=2y

100=2y

y=100/2

y=50

Finally, you can replace the value of y in (3) to find x:

x=300-50

x=250

According to this, the answer is that Mandy sold 250 pancakes and 50 waffles.

5 0
2 years ago
The data in the table shows a sinusoidal relationship between the number of seconds an object has been moving and its velocity
blsea [12.9K]

Answer:

the answers are 8, 20, and 12

6 0
2 years ago
Read 2 more answers
(5 pts) A quadratic function f is given by f(x) = ax2 + bx + c where a is not 0. Select all
Vsevolod [243]

Answers:

  • a) True. Plug in x = 0 and it leads to y = c. Therefore, the point (0,c) is on the parabola.
  • b) False. Plug in y = 0 and apply the quadratic formula. One x intercept may sometimes be x = c, but it could easily be other values as well. Or perhaps you may not get any real number solutions at all. See part d) below.
  • c) True. If a < 0, then the leading coefficient is negative. Overall, both endpoints will tend toward negative infinity to produce a parabola that opens downward.
  • d) False. The quadratic may have one x intercept or it may not have any x intercepts at all. It depends on what the discriminant d = b^2 - 4ac is equal to. If d < 0, then we have no x intercepts. If d = 0, then we have exactly 1 x intercept. If d > 0, then we have two different x intercepts.
  • e) True. The vertex's x coordinate is -b/(2a). If b = 0, then the x coordinate of the vertex is 0. The vertical line x = 0 is directly on top of the y axis.
8 0
3 years ago
Write an expression for the perimeter of the triangle shown below:
salantis [7]
P = 3x + 0.5x + 9 - 3.4x - 25
P = 0.1x - 16

answer
<span>0.1x − 16</span>
5 0
3 years ago
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