Answer:
(3, 6)
Step-by-step explanation:
Opposite of neg3 and 6, which is 3 and 6.
Makeeeee yourrrrrr besttttttt shoooooooottttttttttt
Answer:
20
Step-by-step explanation:
→ First find the value of x and y
x + y = 5
x - y = 4
→ Add the equations to cancel out the y's
2x = 9
→ Divide both sides by 2 to find the value of x
x = 4.5
→ Substitute x = 4.5 back into x - y = 4 to find the value of y
4.5 - y = 4
→ Minus 4.5 from both sides to isolate -y
-y = -0.5
→ Multiply everything by -1
y = 0.5
→ Substitute x = 4.5 and y = 0.5 into x² - y²
4.5² - 0.5² = 20.25 - 0.25 = 20
We know two things from this: that the perimeter is 50 cm and that the length is 4 cm longer than the width.
Our equation will be in terms of the width, since we know that the length is dependent on that.
2(4+w) + 2w=50
Now, we need w to be by itself on one side. We need to distribute the parenthesis and solve.
8+2w+2w=50
8+4w=50
4w=42
w=10.5
Let's check if the width is 10.5 cm with the length being 14.5 cm by adding.
21+29= 50
Now, we know the answer, let's use the substution method. You could substitute many things.
2l+2w=50
2(w+4)=l
By putting the second equation where the L is in the first equation, we would be using substitution. For this problem, they are many ways to substitute and solve the system of equations.
Answer:
A. score
Step-by-step explanation:
The correct option is (a) "Total path length". It cannot be negative or zero. Velocity of an object can be negative. If it move in the opposite direction of motion, then its velocity is negative. Acceleration can be negative.