The answer is 40 because you have a ratio of 4:1 (16:4). If you multiply by ten, it becomes 40:10.
F(x) = x² - 1
f(2a) = 35
f(2a) = (2a)² - 1 = 35
4a² - 1 = 35
4a² = 35 + 1
4a² = 36
a² = 36/4
a² = 9
a = √9
a = +3 or -3.
Answer:
y=5x+42
subtract 5x from both sides
-5x+y=42
Step-by-step explanation:
subtract 5x from both sides
-5x+y=42
multiply by -1
5x-y=-42
In standard form, Ax+By=C, the variable A cannot be a negative. However, this is not an option so go with c.
Answer:
258.75km
Step-by-step explanation:
345/4=86.25
Can travel 86.25km an hour
86.25*3=258.75
Therefore it can travel 258.75 in 3 hours
Answer:
You first have to read on the coordinates where the curve and the straight line meet or cuts across
a.) 53
b.) 13
