Step-by-step explanation:
The first one will be:
7x^6 - 7x^5 +28x - 4x² - 60
And the second:
-9x⁴-3x²-4x²+5x
Find two points by giving x an y values and solving the equation:
y = -4/7x +1
1 = -4/7x +1, x =0
First point is (0,1)
5 = -4/7x +1, x = -7
Second point is (-7,5)
Now plot those two points on the graph and draw a line through them
See attached picture:
Answer:
28.3 cm
Step-by-step explanation:
Let x represent the length of one side of the square. Then, by the Pythagorean Theorem,
x^2 + x^2 = (40 cm)^2, or
2x^2 = 1600 cm^2.
Thus, x^2 = 800 cm2, and x, the length of one side, is √800, or 28.3 cm to the nearest tenth of a cm.
Number of t-shirts are represented by 't'
number of sweaters are represented by 's'
cost of 1t=10 and cost of 1s=20 so
10t+20s=2000 or (factor out the 10 if you want to simplify)
10(t+2s)=10(200)
divide both sides by 2
t+2s=200
