The sides of an equilateral triangle are same. So if one of the sides is (x-4.5), all the sides are (x-4.5).
Let the sides are a=(x-4.5), b=(x-4.5), c=(x-4.5)
1. Perimeter(as sum) = a+b+c
= (x-4.5)+(x-4.5)+(x-4.5)
= x+x+x-4.5-4.5-4.5
= 3x - 13.5
2. Perimeter (as product) = 3×a
= 3×(x-4.5)
= 3×x - 3×4.5
= 3x - 13.5
(you can write 3×b or 3×c also as a=b=c.)
<em>Both perimeter as sum and perimeter as product are same as adding a number three times is the same as multiplying it by 3.</em>
Answer:
C) The diagram in this figure illustrates a reflex angle
Step-by-step explanation:
Given : A diagram with an angle.
To find : The diagram in this figure illustrates a _______ angle.
Solution : We can see from figure it is greater than 180 degree and less than 360 degree.
By the definition of reflex angle : The reflex angle is the larger angle. It is more than 180° but less than 360°.
Therefore, C) The diagram in this figure illustrates a reflex angle.
Answer: 
Step-by-step explanation:
Let be "x" the price in dollars of one copy of the city newspaper.
You need to analize the information provided in the exercise:
1. The total number of copies of the city newspaper sold in the newspaper stand is:
2. The amount of money earned by selling 1,000 copies of the city newspaper is:
Then, you can determine that the value of "x" can be found with:
3. Finally, substituting values, you get:
Answer:
The answer is -7.1, -5, 1/9, 0.5, 0.9
Step-by-step explanation:
Answer:
25.5 sq cm
Step-by-step explanation:
1*3/2+7*3+1/2*3*2=3/2+21+3=25.5 sq cm
