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stich3 [128]
3 years ago
10

Write an equivalent expression for 4(2x+5

Mathematics
2 answers:
Verizon [17]3 years ago
8 0
4(2x +5) = (8x + 20) 

8x =20 is an equivalent expression
 

lord [1]3 years ago
4 0

Answer:

the equivalent expression would be 8x+20.

Hope this helps!

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Write a polynomial function that has the zeros -3, 1, -1 and has a leading coefficient of 1.
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Answer:

x3+3x2-x-3

Step-by-step explanation:

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Sam drew sticks and circles to solve this problem. Explain how he added. Then write the total.
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The local supermarket buys lettuce each day to ensure really fresh produce. Each morning any lettuce that is left from the previ
jekas [21]

Given Information:

Cost price = $4

Selling price = $10

Salvage value = $1.50

Average demand = μ = 250 boxes

Standard deviation = σ = 34 boxes

Required Information:

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Answer:

The supermarket should purchase 268 boxes  of lettuce

Step-by-step explanation:

The required number of lettuce boxes that supermarket should purchase is given by

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p = C_us/(C_us + C_os)

The z-score corresponding to probability p will be obtained.

The cost of under stocking is given by

C_us = Selling price - Cost price

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C_us = $6

The cost of over stocking is given by

C_os = Cost price - Salvage value

C_os = $4 - $1.50

C_os = $2.50

p = C_us/(C_us + C_os)

p = 6/(6 + 2.50)

p = 0.7058

p  = 70.58%

The z-score corresponding to 70.58% probability is approximately 0.54

Number of lettuce boxes = μ + (z*σ)

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Number of lettuce boxes = 268.36

Number of lettuce boxes ≈ 268

Therefore, the supermarket should purchase 268 boxes of lettuce.

How to use z-table?

Step 1:

In the z-table, find the probability you are looking for and note down the two-digit number of the given row. (e.g 0.5, 2.2, 0.5 etc.)

Step 2:

Then look up at the top of z-table and note down the value in the column for the remaining decimal point in the range of 0.00 to 0.09.

Step 3:

Finally, add the numbers obtained from step 1 and step 2.

8 0
3 years ago
Fractions and integer operations practice, I need help please.
olga2289 [7]
40/11 = 3.63
hope this helps
3 0
3 years ago
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