Answer:
x < 12/5
Step-by-step explanation:
First, distribute 5 among everything inside the parenthesis to get 5x + 17 > 10x + 5.
Next, subtract 5 on both sides to get
5x + 12 > 10x.
Afterwards, subtract the 5x on both sides to get 12 > 5x.
Finally, divide 5 on both sides to get 12/5 > x (You can always flip it around so that the x is on the other side btw.) Answer is written above⤴⤴⤴.
Hope this helps you :)
1 - c
2 - b Reason - 78-6=72 72/9=8
3 - 18y-100=-190
18y=90
y=4.4444
First you take away 15 from 20 to get just one number on each side of the equal sign then you add those two so 3(15)=20 would end up being 15
Answer: Group A :
Shape #1 : Rhombus
Shape #2 : Two parallelograms/ Two rectangles
Shape #3 : Parallelogram with opposite longer sides equal to 8, and the opposite shorter sides equal to 4.
Shape #4 : Parallelogram with opposite longer sides equal to 3, and the opposite shorter side equal to 2.
Group B :
Shape #1 : Rectangle with opposite longer sides equal to 7, and the opposite shorter sides equal to 4.
Shape #2 : Square with equal sides of 3 units.
Shape #3 : Square with equal sides of 3 units.
Shape #4 : Right-angled trapezium
Step-by-step explanation:
<h2>
Answer:</h2>
<h2>
Step-by-step explanation:</h2>
To find this area we will use the law of cosine and the Heron's formula. First of all, let't find the unknown side using the law of cosine:
Heron's formula (also called hero's formula) is used to find the area of a triangle using the triangle's side lengths and the semiperimeter. A polygon's semiperimeter s is half its perimeter. So the area of a triangle can be found by:
being 
the corresponding sides of the triangle.
So the semiperimeter is:
So the area is:
