<span>2t + 8 - 8 - t = -3
t = -3 (combine like terms)</span>
Yes you are doing it right
8²+9(12÷3×2)-7
well we are going to start in the parentheses and do order of operations
so 12÷3=4
then 4×2=8
so you have 8² +9(8)-7
well we still need to get rid of the parentheses 9×8=72
so then we are left with 8²=72-7
so now we have to get rid of the exponents so8²=64
64+72-7
136-7=129
so 129 is your answer to the first one.
the second one is easy. its a single step equation.
you are trying to get x by itself. so you have 7x=42. you want to get rid of the seven so you have to do the opposite of what it is doing to x. the 7 is multiplying by the x. So whats the opposite of multiplication... division. so you have to divide both sides by 7. so you have 7÷7x=42÷7
now simplify and you have x=6
Answer: Hello your question is quite vague but i will provide a general answer within the scope of your company
answer : D = Y + Z
Step-by-step explanation:
Moving from city W to city x
Given that there is a milestone at the beginning of the journey ( i.e. at City W )
and Another milestone is Located between City W and City X after traveling for time T
lets assume
distance between Milestone at W and milestone between W and x = Y
distance between City x and milestone between City W and City x = Z
<u>Finally to determine the Distance between City x and city W </u>
D = Y + Z
Each of those angles are Inscribed angles. A useful fact is that the measure of the intercepted arc of an inscribed angle is twice the measure of the angle.
The intercepted arc of ∠C is arc BED. The intercepted arc of ∠E is arc BCD.
m(arc BED) + m(arc BCD) = 2( m∠C + m∠E)
The two arcs combined make u p the entire circle, so the sum of their measures is 360.
360 = 2(m∠C + m∠E)
180 = m∠C + m∠E
The angles are supplementary.
