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2 years ago

6

for 15 hours of work a plumber charges $330 if he charges the same amount for each hour of work which table shows the correct re

lationship between what he charges and the number of hours he works

2 answers:

kompoz [17]2 years ago

6 0

Answer:

the 2 table

Step-by-step explanation:

330 ÷ 15 = 22 and in the 2 table is showing that

Oliga [24]2 years ago

3 0

22 should be the answer

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A wire 4 1/2 feet long is being cut into smaller pieces of wire, each. 1 1/4 ft long what is the max number of smaller pieces of

ivolga24 [154]

4.5 divided by 1.25 is 3.6

for peices in total it is 4.

for peices the right length it is 3

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2 years ago

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Which of the following will generate a graph that is 3 units to the left of y = x3?

Mamont248 [21]

Answer:

(3) y=(x+3)

Step-by-step explanation:

I'm not sure what is the parent function, but in most graphs if you will shift it to the left or right (negative sign or positive sign, respectively), it will be inside a parenthesis and the opposite sign is the real movement.

For a cubic function these will be the movements:

f(x)=(x+/-h)^3+/-k

Only the opposite sign of h will be the real movement, while k's sign will automatically indicate the correct movement.

h= x-axis movement (horizontal, inside of the parenthesis in the equation)

k= y-axis movement (vertical, outside of the parenthesis in the equation)

Hope it helps

4 0

2 years ago

Solve: -3= 12x-5(2x-7)

leonid [27]

Answer:

x = -19

Step-by-step explanation:

-3= 12x-5(2x-7)

Distribute

-3= 12x-10x+35

Combine like terms

-3 = 2x +35

Subtract 35 from each side

-3-35 = 2x+35-35

-38 = 2x

Divide each side by 2

-38/2 = 2x/2

-19 =x

7 0

3 years ago

A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 220 feet of f

MrRa [10]

Answer:

6050 square feet

Step-by-step explanation:

Based on the diagram attached, the area which the available fencing can enclose will measure X x Y feet. As the total length of fencing available is 220 feet, the fenced perimeter must equal 220 feet

$Y + 2X = 220$

$Y = 220 - 2X$

Area of a rectangle is determined by multiplying the length of perpendicular sides:

$Area = X*Y$

$Area = X(220 - 2X)$

$Area = 220X - 2X^{2}$

The derivative of an equation determines the slope at any given point of that equation. At the maximum or minimum point of the equation, the slope will be zero. Therefore, differentiating the equation for area and equating it to zero will give the value of X where the area is maximum.

A simple variable can be differentiated using below concept:

$f(a) = a^{b}$

$f'(a) = ba^{b-1}$

Using the above concepts to differentiate Area and calculate X will give:

$Area = 220X - 2X^{2}$

$Area' = 220 - 4X = 0$

$X = 55$

Calculating Y:

$Y = 220 - 2X$

$Y = 220 - 2(55)$

$Y = 110$

Calculating Area:

$Area = X*Y$

$Area = 55*110$

$Area = 6050\sqfeet$

8 0

2 years ago

Can someone please help me it would mean a lot thank you.

Lubov Fominskaja [6]

Answer:

1: 0

2: 2

3: 8

4: 0

5: -19

6: 6

7: -9

8: -4

9: 10

10: 1

11: -9

12: 20

13: -29

14: 17

15: 29

16: 29

Step-by-step explanation:

They are all in order.

6 0

2 years ago

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