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qaws [65]
3 years ago
14

If the sum of the measures of the interior angles of a convex polygon is 2160°, how many sides does the polygon have?

Mathematics
1 answer:
Alika [10]3 years ago
8 0
They are 9 in total cause Idk what does a polygon looks like but I just answered that so total is 9
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Point B has coordinates (−4, −2). The x-coordinate of point A is 5. The distance between points A and B is 15 units. What are th
GaryK [48]

~~~~~~~~~~~~\textit{distance between 2 points} \\\\ A(\stackrel{x_1}{5}~,~\stackrel{y_1}{y})\qquad B(\stackrel{x_2}{-4}~,~\stackrel{y_2}{-2})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ \stackrel{AB}{15}=\sqrt{[-4 - 5]^2 + [-2 - y]^2}\implies 15^2=(-9)^2+(-2-y)^2

225=81+(-2-y)(-2-y)\implies 225=81+\stackrel{F~O~I~L}{(4+4y+y^2)} \\\\\\ 144=4+4y+y^2\implies 0=y^2+4y-140\implies 0=(y-10)(y+14) \\\\\\ y= \begin{cases} 10\\ -14 \end{cases}\qquad \qquad \qquad A(5~~,~~10)\qquad A(5~~,~~-14)

7 0
2 years ago
Jose's school has 426 students. His principal has promised the Student Council that their idea will be carried out if they can
evablogger [386]

Answer:

they need 25 more signatures to get their idea carried out

Step-by-step explanation: 25% of 426 is 107 and 107 minus 82 is 25

3 0
3 years ago
Read 2 more answers
Find the area of the triangle shown <br> 17ft<br> 15ft<br> 8ft
bonufazy [111]

Answer:

127 ft

BASE * HEIGHT

8 0
2 years ago
Quick!
MAVERICK [17]

Answer:

y=-x-2

Step-by-step explanation:

To find the slope of the line, you can use the slope formula. I did this with (-3,1) and (2,-4) to get: (1+4)/(-3-2). This ends up as -5/5, which simplifies to -1.

next I plugged in the slope and one point into the line equation: y=mx+b. I plugged in (-4)=(-1)(2)+b. This equated to b=-2.

Check Work:

The equation -4=(-1)(2)-2 is true

The equation 1=(-1)(-3)-2 is true

5 0
3 years ago
Drag each tile to the correct box.
kolbaska11 [484]

Answer:

a) Distance between points A (5, 4) and B( 5, -2) is 6 unitsb) Distance between points E (-2, -1) and F( -2, -5) is 4 unitsc) Distance between points C (-4, 1) and D( 1, 1) is 5 unitsd) Distance between points G(3, -5) and H(6, -5) is 3 unitsStep-by-step explanation:We need to find the distance between each paira) A (5, 4) and B( 5, -2)

Step-by-step explanation:

8 0
3 years ago
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