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3 years ago

What expression is equivalent to 4(3x+3)

Mathematics

1 answer:

Leto [7]3 years ago

3 0

Answer:

when multiplied you get 12x+12

Step-by-step explanation:

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What is the range of y = -2.02 + 4 + 8?

Zigmanuir [339]

The range of y=-2.02+4+8 is 9.98 hope this helps:)!

5 0

2 years ago

The marginal cost of manufacturing an item when x thousand items are produced is dC/dx= 4x^3 - 6x + 5 dolars/item.Find the cost

Orlov [11]

Answer:

The cost function is $C(x)=x^4-3x^2+5x+550$ .

Step-by-step explanation:

It is given that the marginal cost of manufacturing an item when x thousand items are produced is

$\frac{dC}{dx}=4x^3-6x+5$

We need to find the cost function.

Multiply both sides by dx.

$dC=(4x^3-6x+5)dx$

Integrate both sides to find the cost function.

$\int dC=\int (4x^3-6x+5)dx$

$\int dC=4\int x^3dx-6\int xdx+5\int 1 dx$

$C(x)=4(\frac{x^4}{4})-6(\frac{x^2}{2})+5x+C$

where, C(x) is const function and C is a constant.

$C(x)=x^4-3x^2+5x+C$

It is given that C(0)=550. Substitute x=0 in the above function.

$C(0)=(0)^4-3(0)^2+5(0)+C$

$C(0)=C$

$550=C$

Therefore, the cost function is $C(x)=x^4-3x^2+5x+550$ .

6 0

3 years ago

Find the slope of the line through the pair of points. A(2, –3), P(2, 9)

laiz [17]

9- -3=12
2-2=0.
Slope is 12/0

5 0

4 years ago

Read 2 more answers

Chelsea completes 35 math problems in 7 min.

Andru [333]

Answer = 5 problems per minute

Because you do the number of problems divided by the minutes eg 35/7 = 5

3 0

4 years ago

I solve kinda a bit but its hard (Algebra 2)

melisa1 [442]

Answer:

x=9

Step-by-step explanation:

The goal is to combine our knowledge of geometry area and algebra skills to solve this problems.

We know area of rectangle is

$l \times w$

where l is the length and w is the width. We know that one side is 3 less than the other side. We can use L or W but let use L. Let x replace L

One side is x, while the other side is

$x - 3$

Both multiply to 54.

$x(x - 3) = 54$

${x}^{2} - 3x = 54$

${x}^{2} - 3x - 54 = 0$

$(x - 9)(x + 6)$

$x = 9$

$x = - 6$

Distance. is positive so x=9

8 0

3 years ago