Answer:
<h3>Add to eliminate y.</h3>
Step-by-step explanation:
Given the equations
-9x + y = 71.... 1
-x - y = -1 .... 2
Using elimination method we can eliminate y first since they have the same coefficient.
To do that we will need to add up both equations. We are adding because the coefficient of y in both equations has different signs. If they have the same sign, we would have subtracted.
<em>Hence the correct option in this case is to add to eliminate y.</em>
Answer:
60
Step-by-step explanation:
f(t)+g(t)=(1^2+21)+(41-3)=1+21+38=22+38=60
1. 5 faces
2. 4 triangles
3. 6(4)1/2=12 in
4. 36in squared=91.44cm squared
5. 12(4)=48 in squared=121.92 cm sqaured
6. 82 in squared=208.28 cm squared
Answer:
b = 2/5 = 0.4
Step-by-step explanation:
We know that:
We want to find the value of b, then we need to isolate b in one side of the equation.
First, let's subtract 15 in both sides of the equation so we get:
Now we can multiply both sides by 3*b, so we get:
Now we can divide both sides by -15:
Then:
b = 6/15 = 2/5
b = 2/5 = 0.4