Q because it’s at a straight level
If the function is:
y=a cos( bx+c), or y=a sin(x+c)
then the period is T= 2π/b and if T=2:
2=2π/b
b=2π/2=π
Answer: B) y=3 cos πx
Answer:
y= (30-5x) /7
Step-by-step explanation:
We can make linear inequality if we have 2 variables to compare. Let's put y= number of tortilla chips while x= jars of cheese dips. Tortilla chips(y) cost $3.50 per bag while jars of cheese dips(x) cost $2.50 per jar. If total money Ant has is $15, the equation will be:
y * $3.50 + x* $2.50 = $15
3.5y= 15- 2.5x
7y= 30- 5x
y= (30-5x) /7
3gallons/ 2,100 ft = 7galloons/ X
3X= (2,100)(7)
X= (2,100)(7)/ 3
X= 4,900 ft^2
Plug in 31 where h is assuming that's what the variable h represents.
31 - 15 = 3.2t
16 = 3.2t
Divide both sides by 3.2
t = 5