Answer:
The second one; x²+7x+12
Step-by-step explanation:
So, since the beginning lengths of the square is x and x, the area of the square is x².
But then, you add 3 to one length, so that side is now (x+3), and then you add 4 to the width, so that is now (x+4).
Finally, you would multiply them together to get the equation you would use to find the new area.
For this, you would cross-multiply everything together; the x in the length by the x in the width, the x in the length by the 4 in the width, the 3 in the length by the x in the width, and then the 3 in the length by the 4 in the width. Now, all you have to do is add all of these together to get your answer.
Here's the work:
I’m not sure what you have to find but if your trying to find what x and y equal y = 45 and x = 135
Answer:
m=66
Step-by-step explanation:
I'm not sure what your four step plan is, but here is how I would solve it:
50 rooms on each upper deck x 2 decks = 100 rooms
100 rooms x 1000 per room = 100,000
That leaves 48 rooms on the 2 lower decks, so 48/2=24 rooms per lower deck
48 rooms x 900 per room = 43,200
100,000 + 43,200 = $143,200 (maximum room sales amount)
Hope this helps!! :)
Answer:
8. 105 degrees
9. 75 degrees
10. 105 degrees
Step-by-step explanation:
The given angle is 75 degrees. The four angles together make up 360 degrees because quadrilaterals have a measurement of 360 degrees on the inside. The angle that is 75 degrees and angle 2 are opposites (I forgot the math word, sorry) so they are the same degrees. So we know that angle 2 is 75 degrees. Angles 1 and 2 are vertical pairs, as well as the given angle and angle 3. We know that vertical pairs equal 180 degrees. 180 - 75 = 105 degrees. Now we know that both angle 1 and 3 are 105 degrees. You could also find the measurment of angle 1 and 3 by making an equation.
Given angle + Angle 2 + Angle 1 + Angle 3 = 360 degrees
(75 + 75 + 2x = 360)
150 + 2x = 360
2x = 210
x = 105
