Step-by-step explanation:
perimeter=2(l+b)
18=2[(x+2)+x]
18=2(x+x+2)
18=2(2x+2)
18=4x+4
collecting like terms
18+4=4x
22=4x
dividing by 4
22/4=x
5²/4=5½
Answer:
15
Step-by-step explanation:
The opposite of 15 is -15. So the opposite of -15 will be 15.
Hope this was helpful, Have a Great Day!!
Answer:
36
Step-by-step explanation:
1/2 × b× h
= 1/2 × 9×8
= 9×4
= 36 sq. in
Answer: 1/4
Step-by-step explanation:
Answer:
Step-by-step explanation:
<em><u>The formula for finding the area of a triangle is:</u></em>
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<em><u>The "b," is the base (7), and the "h," is the height (8):</u></em>
28
