Answer:
The answer to your question is 1.- (-3, 4) 2.- (3, 1) None of the choices
Step-by-step explanation:
1.- The solution of a system of equation by the graph method is the point in which the lines cross. In this graph we observe that this point is approximately
(-3, 4).
2.-
Equation 1 x + y = 4
Equation 2 x - y = 2
Solve by the combination method
x + y = 4
x - y = 2
2x 0 = 6
2x = 6
Solve for x
x = 6/2
x = 3
Substitute x in equation 1 to find y
3 + y = 4
Solve for y
y = 4 - 3
y = 1
Solution (3, 1)
If she rides twice the amount of 2 3/10 miles, then she rides 2.3 miles × 2, so that is 4.6 miles, which is 4 6/10 miles, which becomes 4 3/5 miles once simplified. The ending answer is that Marissa rode her bike 4 3/5 miles in all.
Answer: 1.118
Step-by-step explanation:
Factor x Factor = Product
0.26(Factor) x 4.3(Factor) = 1.118(Product)
To check your work, divide the product by one of the factors and the result you should get is the other factor.
1.118(Product) ÷ 4.3(Factor) = 0.26(Factor)
-or-
1.118(Product) ÷ 0.26(Factor) = 4.3(Factor)
To show work:
.26
<u> x4.3</u>
.078
<u>+1.040</u>
1.118
Answer:
Graph D
Step-by-step explanation:
(h)t = -16t^2 + 80
At time t = 0 the screwdriver is at 0+80 =80 ft
As time increases the height will decrease so we can eliminate graph B
We know this is a downward parabola by the - in front of the t^2 so we can eliminate graph A
We need to find where it meets the x axis
0 = -16t^2 + 80
-80 = -16t^2
5 = t^2
t = sqrt(5)
t =2.23
This is Graph D