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3 years ago

What is the value of the expression: x - 3y

Mathematics

1 answer:

Softa [21]3 years ago

3 0

Answer:

x-3y

=6-(3×12)

=6-36

=-30

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F(-4); f(x) = x2 + x - 4

Ugo [173]

Answer: 8

Step-by-step explanation: In this problem,

we're asked to find f(-4) or the value of the function when x = -4.

To find the value of the function when x = -4,we simply plug in a -4 for

the x in our function and we have (-4)² + (-4) - 4 or 16 + -4 - 4 which is 8.

So f(-4) = 8.

4 0

3 years ago

Convert the following fraction to decimal <br><br><br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B13%7D%7B20%7D%20" id="TexFo

Rus_ich [418]

Answer:

0.65

Step-by-step explanation:

13/20 * 5 = 65/100 = 0.65

4 0

3 years ago

Read 2 more answers

How many decimeters are = to 73 meter

goldfiish [28.3K]

Answer:

73 meters = 730 decimeters

Step-by-step explanation:

there are 10 decimeters in one meter so 73 × 10 = 730

4 0

4 years ago

Read 2 more answers

What is the equation of 30-20

serious [3.7K]

If you would like to calculate x = 30 - 20, you can do this like this:

x = 30 - 20
x = 10

The correct result would be x = 10.

7 0

3 years ago

The annual demand for a product is 16,400 units. The weekly demand is 315 units with a standard deviation of 90 units. The cost

shutvik [7]

Answer:

a) The reorder point necessary to provide a 95 percent service probability is 1557 units.

b) The Z value of 0.74 corresponds to 77% service probability.

Step-by-step explanation:

Average weekly demand (d) = 315 units

The standard deviation of weekly demand (\sigmad) = 90 units

Lead time (L) = 4 weeks

At 95% service level value of Z = 1.65

Reorder point = d x L + safety stock

$= d \times L + (Z \times \sigma d \times \sqrt L)\\\\= 315 x 4 + (1.65 x 90 x \sqrt 4)\\\\= 1260 +(1.65 x 90 x 2)\\\\= 1260 + 297\\\\= 1557 units$

b) Earlier the safety stock was 297 units(calculated in part a)

Now the safety stock is reduced to 55%.so,55% of 297 = 163.35 units

So the new safety stock = 297 - 163.35 = 133.65

$Safety stock = Z \times \sigma d \times \sqrt L\\133.65 = Z x 90 x 2\\133.65 = 180Z\\ Z = 133.65/180\\Z = 0.74$

The Z value of 0.74 corresponds to 77% service probability.

4 0

3 years ago