Answer:
B. x = -1 and x = 3
Step-by-step explanation:
The zeros of a quadratic function are where the lines insect the x-axis. This means that the y value will always be 0 and the x value will be any real number
3:8 is the original ratio
multiple both sides by 3 to make it 3 times greater
the answer would be 9:24
hope this helps!!
Her final payment is 78$. Just do 50+52+54+56+58... and so on until you get up into the 1,100's. Then subtract that last number you got from 1200. The answer is 78.
Given:
monthly budget = 155.60
cost of movies = x
cost of video games = 2.5x
movies + vidgames < budget
x + 2.5x < 155.60
3.5x < 155.60 *expression of inequality
3.5x < 155.60
<u>÷3.5 ÷3.5</u>
x < 44.46
Travis should spend less than 44.46 on movies.
Assuming movie cost 44.
x + 2.5x < 155.60
44 + 2.5(44) < 155.60
44 + 110 < 155.60
154 < 155.60
Answer:
∠ ABC ≈ 137.9°
Step-by-step explanation:
Using the Cosine rule in Δ ABC
cos B =
with a = 89, b = 144, c = 65
cos B = = = , thus
B = ( - ) ≈ 137.9° ( to the nearest tenth )