Answer:
Step-by-step explanation:
1.50 x + 2 x = 10.50
add similar elements:
1.50 x + 2 x = 3.5 x
3.5 x = 10.50
x = 10.50 / 3.5
x = 3 magazines.
hope this helps!
Answer:
The side lengths cannot belong to a right triangle.
Step-by-step explanation:
This is a simple case of Pythagorean proof. If this triangle was a right triangle, 20^2 + 21^2 = 28^2. However, this is not the case. 20^2 + 21^2 = 841, which square root is 29.
If you forgot, the Pythagoren Theorem is: a^2 + b^2 = c^2.
Hope this helps!
Y=mx+b
Slope is 3/1
Y-22=3(x-23)
Y-22=3x-69
+22 +22
Y=3x -47
Y=3x-47
The surface area would be all those areas combined. The shape has been split up into 6 smaller quadrilaterals, so we can easily solve from there. The leftmost one would be 3*4 = 12. The two rectangles beside it can be combined: 4*7 = 28, the one beside it would be: 3*4 = 12, and the last column would be 4*7 = 28. The last thing you need to do is add them together: 12+28+12+28 = 80.
The surface area of the rectangular prism is 80