What are you looking for?
The correct answer is (10,-20), because the equation already gives you the correct x value. Then, from there you just plug 10 in for x in the y equation. Giving you a -20, :)
If you would like to find the x-intercept of the line with the equation 4x + 2y = 12, you can do this using the following steps:
4x + 2y = 12
y = 0
4x + 2 * 0 = 12
4x = 12
x = 12/4 = 3
(x, y) = (3, 0)
The correct result would be <span>d. (3, 0).</span>
Answer:
the answer is 3xy
Step-by-step explanation:
2x can be combined with -5x and x because they have the same variables, but 3xy has the variable xy so it cannot be combined with the others
Answer:
5 meters
Step-by-step explanation:
The height of the lamppost above the person is twice the height of the person, so the distance between the lamppost and person is twice the length of the person's shadow. (A diagram can help you see this.)
The person's shadow is (10 m)/2 = 5 m long.
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<em>Check</em>
The tip of the shadow is 15 m from the lamppost, 2.5 times the height of the lamp. The tip of the shadow is also 5 m from the person, 2.5 times the height of the person. The triangles involved are similar.
