Answer:
14 guest = 7 tables
20 guest = 10 tables
Step-by-step explanation:
1 table = 2 guest
One solution
11x + 25 = 7x+15
-7x -7x
4x+25=15
-25 -25
4x= -10
————
4
x= -10/4
-10/4 simplified is -5/2
so there is one solution where x=-5/2
<span>#1 is C
</span><span>#2 is B
</span>3a is On the circle
<span>3b is inside
</span><span>3d is on
</span><span>3e is outside
</span>
<span>4a is "You can find if a triangle is right by using the Pythagorean theorem or by using perpendicular lines"
</span><span>4b): Using the Pythagorean Side AC (which is √10 units long)^2 + side AB (which is √40 units long)^2 is equal to 50 (which is the length of side BC). Using perpendicular lines, you find that line AB has a slope of 1/3 and side AC has a slope of -3. Since these two are opposite reciprocals, they are perpendicular, which means that they form a 90 degree angle.
</span><span>5.) To find the midpoint, use the formula (x2+x1/2,y2+y1/2) by using the given coordinates, we find that the midpoint is (1,-2). This point lies in quadrant IV, so it is proven that it's midpoint lies in quadrant IV.
</span>
:)
Answer: 
<u>Step-by-step explanation:</u>
0° < A < 180° so it is in Quadrant I or II
since tan A is negative, it is in Quadrant II ---> (-x, +y)

Next, find the hypotenuse given that x = -13 and y = 9
(-13)² + (9)² = r²
250 = r²
5√10 = r

Answer:
115.5
Step-by-step explanation: