Answer:
The expressión is:
10(a+14) = 9a
and the number is:
-140
Step-by-step explanation:
The expression is:
10(a+14) = 9a
then:
10*a + 10*14 = 9a
10a + 140 = 9a
10a - 9a = -140
a = -140
Check:
10(-140+14) = 9*140
10*-126 = 1260
(t-7)(t-7) is the answer !! :)
Answer:
a= 1
b= 0
Step-by-Step Explanation:
I am not 100% sure on part A, however part B is correct because the difference between -2 and -1 is 1, so if you add 1 to -1 you get 0. Hence B= 0.
Again I am not 100% sure on part A, so you may need a second opinion.
<span>By definition, all sides of a regular polygon are equal in length. If you know the length of one of the sides, the area is given by the formula:
</span>
area=(s^2)n / 4 tan(180/n)
Area1=(14^2)5 / 4 tan(180/5) = 337.21 cm^2
Area2=(21^2)5 / 4 tan(180/5) = <span>758.73 cm^2
</span>
Therefore, the ratio of the area would be:
337.21 cm^2/758.73 cm^2 = 0.4444
