5(-2a-8) < -9a + 4
Use distributive property on left side:
-10a -40 < -9a + 4
Add 40 to both sides
-10a < -9a + 44
Add 9a to both sides
-a < 44
Multiply both sides by -1 and reverse the inequality sign:
A > -44
Answer: a > -44
Answer:
m=11
Step-by-step explanation:
Answer:
Perimeter: 16x + 16
Area: 40x + 15
Step-by-step explanation:
Remember, the perimeter is the sum of all the sides of a figure, it can be found by adding up all the sides. The area is the space within the figure, in the case of a quadrilateral can be found by multiplying the length by the width. Finally, in a rectangle, the opposite sides are congruent, parallel, and intersect in 90degree (right) angles.
Using this,
1. Find the perimeter
Since opposite sides are congruent, there will be two sides with a measure of ( 8x + 3 ), and two sides with the measure of 5. Hence the sum of all the sides would be
8x + 3 + 8x + 3 + 5 + 5
Add them together,
16x + 16.
The perimeter of the figure is 16x + 16
2. Find the area,
To find the area of a rectangle, multiply the length by the width.;
( 8x + 3 ) * 5
Distribute:
40x + 15
The area of the figure is 40x + 15
Answer:
Area 108cm2
Step-by-step explanation:
triangle =<em>1</em><em>/</em><em>2</em><em> </em><em>×</em><em>base</em><em>×</em><em> </em><em>height</em><em> </em>
rectangle =<em>length</em><em> </em><em>×</em><em> </em><em>width</em>
<em>then</em><em> </em><em>add</em><em> </em><em>the</em><em> </em><em>area</em><em> </em><em>of</em><em> </em><em>each</em><em> </em><em>shape</em>