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4 years ago

Please help me! Number 13 and 14

Mathematics

1 answer:

Lorico [155]4 years ago

4 0

Is not, proportional

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If a=2, b=-3, c=4<br> ab - bc =

Elza [17]

2(-3)-(-3)(4) = -6-(-12) = -6+12 = 6

5 0

2 years ago

Read 2 more answers

Which system of equations could be graphed to solve the equation below?

Taya2010 [7]

Answer:

$\left\{\begin{array}{l}y_1=\log (2x+1)\\ \\y_2=3x-2\end{array}\right.$

Step-by-step explanation:

Given the equation

$\log (2x+1)=3x-2$

This equation consists of two parts. In the left part, there is a logarithmic function $y=log (2x+1)$

In the right part, there is a linear function $y=3x-2$

To solve the equation graphically, you have to plot the graphs of these two functions and find the point of intersection of these graphs.

Hence, appropriate system is

$\left\{\begin{array}{l}y_1=\log (2x+1)\\ \\y_2=3x-2\end{array}\right.$

4 0

3 years ago

) Luci Lulu opened a cookie store in the mall. She found that the relationship between the price of a cookie, p, and the number

lozanna [386]

Answer:

The maximum revenue Luci can make selling cookies in one day is $4,004,000.

Step-by-step explanation:

Given;

x = −2000 p + 4000 ..................... (1)

Revenue = xp

Revenue = (−2000 p + 4000)p =

Revenue = −2000p^2 + 4000p .................... (2)

The price at which Luci will the maximum profit can be calculated by finding the derivative of equation (2), equating to 0, and then solve for p as follows:

−4000p + 4000 = 0

4000 = 4000p

p = 4000 / 4000

p = 1

This implies that the price at which Luci will the maximum profit is $1.

Substituting p = 1 into equation (2) to obtain the maximum revenue Luci can make selling cookies in one day, we have:

Revenue = (−2000 * 1)^2 + (4000 * 1)

Revenue = −2000^2 + 4000

Revenue = 4,000,000 + 4000

Revenue = 4,004,000

Therefore, the maximum revenue Luci can make selling cookies in one day is $4,004,000.

8 0

3 years ago

If a polynomial function f(x) has roots 8, 1, and 6i, what must also be a root of f(x)?

ohaa [14]

Answer:

Step-by-step explanation:

complex and irrational roots always occur in pairs.

so -6i is the second root.

4 0

4 years ago

So i'm confused.

ladessa [460]

Use order of operations... PEMDAS - the order you should attack all math problems.

Parentheses
exponents
multiplication
division
addition
subtraction

So you have to do the exponent THEN the multiplication

3a^2 =
3*8^2 =
3 * 64 =

192

4 0

3 years ago