(-3)/(-5) makes 3/5 because the (-) cancels out
Answer:
48 cm
Step-by-step explanation:
Use pythagorean theorem.
102^2=90^2+b^2
10404=8100+b^2
b^2=2304
b=48
Step-by-step explanation:
<h3><em><u>First</u></em><em><u> </u></em><em><u>Equation</u></em><em><u>:</u></em></h3>
-4x - 8 = 5x + 10
=> 5x + 10 = -4x - 8
=> 5x + 4x = -10 - 8
=> 9x = -18
=><em><u> x = - 2 (Ans)</u></em>
<h3>
<em><u>Second</u></em><em><u> </u></em><em><u>Equation</u></em><em><u>:</u></em></h3>
5x + 2 = 12
=> 5x = 12 - 2
=> 5x = 10
=> <em><u>x</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>2</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em>
Answer:
-2(a+b)=-2a-2b
Equation is alway true
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
-2*(a+b)-(-2*a-2*b)=0
Step by step solution :
Step 1 :
Equation at the end of step 1 :
(0 - 2 • (a + b)) - (-2a - 2b) = 0
Step 2 :
Equation at the end of step 2 :
0 = 0
Step 3 :
Equations which are always true :
3.1 Solve 0 = 0This equation is a tautology (Something which is always true)
Equation is alway true
Step-by-step explanation:
To calculate the percent of something I always think of it in decimals. 100% is 150% is 1.5. So 200% of something is basically times 2. If it's something that says a 50% INCREASE/DECREASE(key word) you multiply by .5 then add to the original number. Hope I helped
