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iren2701 [21]
1 year ago
14

What is the value of the expression 12(m−23n) when m=32 and n=12 ?

Mathematics
1 answer:
Verizon [17]1 year ago
5 0

are those the options? something is wrong here and I'm not sure what. I'm sorry if this is wrong, I tried my best

Answer:

-2,928

Step-by-step explanation:

12 ( 32 - [ 23 • 12 ] )

order of operations PEMDAS ( parenthesis, exponents, multiplication/division, addition/subtraction )

23 • 12 = 276

12 ( 32 - 276 )

12 ( -244 )

-2,928

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The tread life of tires mounted on light-duty trucks follows the normal probability distribution with a population mean of 60,00
valentinak56 [21]

Answer:

0.0013

Step-by-step explanation:

To do this, we need to use a normal distribution table with Z score values, like the one I'm attaching here.

Now, the expression to calculate the Z value is the following:

Z = x - μ / (σ/√n)

Where:

μ: mean

σ: standard deviation

x: value required

n: sample population

Now that we have the data, let's calculate the Z value:

Z = 66,000 - 60,000 / (4000/√4)

Z = 3

Now, let's look at the table to get the value that belongs to this Z score. According to the table, it's 0.0013

Therefore, the likelihood would be 0.0013

3 0
2 years ago
22.Lenin is preparing dinner plates. He has 12 pieces of chicken and 16 rolls. If he wants to make all the plates identicalwitho
Nitella [24]

Answer: The greatest number of plates Lenin can prepare = 4

and there will be 3 chickens and 4 rolls in each plate.

Step-by-step explanation:

Given: Lenin is preparing dinner plates. He has 12 pieces of chicken and 16 rolls.

To make all the plates identical without any food left over, the greatest number of plates Lenin can prepare = G.C.D.(12,16)=4

The number of pieces of chicken in each plate = \dfrac{12}{4}=3

The number of pieces of rolls in each plate = \dfrac{16}{4}=4

So,  the greatest number of plates Lenin can prepare = 4

and there will be 3 chickens and 4 rolls in each plate.

7 0
1 year ago
John Johnson is forty-seven. He is purchasing twenty-year endowment insurance, with a face value of $20,000. What is his annual
Alenkinab [10]
The answer is Letter D - 939.80.

You can refer to the attachment for the rate. Since he is forty-seven years old, use that age to find his rate under a twenty-year endowment insurance. In this case, the rate is 46.99. Multiply that rate to 20 since he purchased a 20-year endowment insurance with a face value of $20,000. (20,000/1,000 = 20)

   46.99 x 20 = 939.80

4 0
2 years ago
Heloïse considered two types of printers for her office. Each printer needs some time to warm up before it starts printing at a
slava [35]

Answer:

1) a, the first printer

2) b, the second printer

Step-by-step explanation:

7 0
2 years ago
As an architect, you are designing a new house. a window has a height between 150  cm  and 160  cm and a width between 82  cm  a
dalvyx [7]
We can write the statement above using inequalities. Let's name:

x: The <span>height of a window (in cm)
y: The width of a window (in cm)

Then writing those statements as equations:

</span>150 \leq x \leq 160

70 \leq y \leq 82

So the area is given by the equation:

A=xy in cm^{2}

10500 \leq A \leq 13120

So there are a variety of figures we can choose as long as the area is between 10500cm^{2} and 13120cm^{2} 



3 0
2 years ago
Read 2 more answers
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