10+ (-3)=10-3=7 is the answer
Answer:
27,0 the distance away from the school
Step-by-step explanation:
Apply the formula for equation of a straight line;
y=mx+c where c is the y intercept , and m is the gradient
From the graph, the slope is negative where speed decreases with increase in time
Find the gradient by applying the formula;

Taking y₁=24, y₂=20, x₁=9, x₂=12
Then;

write the equation of the function as ;
y=mx+c, c=36( the y-intercept when x=0) hence the equation is;

To get x-intercept, substitute value of y with 0

This means that the x-intercept is 27 ,and this means you will require 27 minutes to cover the whole distance to the school.
Answer:
$0.0756 for 18 oz
$0.0634 for 32 oz
Step-by-step explanation:
The number of solutions of a quadratic equation
ax^2+bx+c=0
Depends on its discriminant
/Delta=b^2-4ac
If /Delta>0 there are two distinct solutions
If /Delta=0 there are two coincident solutions
If /Delta<0 there are no solutions.
We know that there are two real solutions (I assume you mean distinct solutions), so we know that the discriminant is positive:
The number of solutions of a quadratic equation
Depends on its discriminant
If there are two distinct solutions
If there are two coincident solutions
If there are no solutions.
We know that there are two real solutions (I assume you mean distinct solutions), so we know that the discriminant is positive:
b^2-4ac=9+28t>0\iff t>-\dfrac[9][28]
Answer:The answer is 10.8167. The picture explains the answer
Step-by-step explanation: