Answer:
x = -3, y = 5
Step-by-step explanation:
first, take the 3x + 17 = y and put it in place for the y in the second equation.
-3x=4x+17+4
then, solve the equation.
-3x=4x+21
-3x-4x=4x-4x+21
-7x=21
-7/-7x=21/-7
x = -3
substitute in other equation
4(-3) + 17 = y
-12 + 17 = y
y = 5
answers are x = -3 and y = 5
Since the equation is:
<span>P(x)=-5x^2+40x-300
Solving the equation by using the calculator, the values for x are:
x = 4.72
Therefore, the company must sell 8 items per week to maximize the profit.
</span>I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
Answer:
log₂(3) = 1.585 ≠ 1.5
Her thinking is not valid because the technique of average is valid only if the graph of the function is a straight line, but the graph of the log function is not a straight line.
Therefore the values cannot be taken by average
Step-by-step explanation:
Given:
log₂(2) = 1
log₂(4) = 2
To evaluate : log₂(3)
Now,
we know that
logₓ(y) = 
(Here the log has same base in the numerator and the denominator i.e 10)
therefore,
log₂(3) = 
also,
log(2) = 0.3010
log(3) = 0.4771
thus,
log₂(3) = 
or
log₂(3) = 1.585 ≠ 1.5
Her thinking is not valid because the technique of average is valid only if the graph of the function is a straight line, but the graph of the log function is not a straight line.
Therefore the values cannot be taken by average
Answer:
3/7
Step-by-step explanation:
12 ÷ 4
28 ÷ 4
<span>Factor completely: 3x2 + 9x − 3
</span><span>3x2 + 9x − 3 (a 3 can be divided from each number)
</span>3(x2+3x-1)
can <span>x2+3x-1 be factored out anymore? <span>no
</span></span><span>3(x2+3x-1) is the answer</span><span>
</span>
