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3 years ago

PLEASE ANSWER ALL QUESTIONS PLEASE??

Mathematics

2 answers:

Vaselesa [24]3 years ago

7 0

5) step 1 2^3 = 8
step 2 8 x 3 = 24
step 3 24 +4 =30
6) step 1 4^2 = 16
step 2 16/2=8

MrRa [10]3 years ago

6 0

The answers are 28 because 2 to the 3rd is 8. 8 times 3 is 24. 24 + 4 is 28
The next answer is 8 because 4 to the 2nd is 16. 16 divided by 2 is 8
Then the answer is Darren because Barb did not add the 4
Then I don't know #8
Then #9 is around the 5 - 2 because that would make it 4+3 to the second x (5-2)
you evaluate by doing 5-2 first because they are in parenthesis which is 3.That makes the equation 4 + 3 to the second x 3 .Then you do 3 to the second because it is an exponent that is 9. Which makes the equation 4+9x3. Then you multiply. So you multiply 9 x 3 to get 27. Which leaves you with 4+27 and because there is no division or subtraction you add 4 and 27 to get 31.

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robert slices a large loaf of bread to make 12 sandwiches. he makes 3 turkey sandwiches and 5 veggle sandwiches. the rest are ha

sdas [7]

Step-by-step explanation:

first, add 3 and 5 together to get the sandwiches robert already made. so you should get 8.

Now, subtract 12 and 8 to get the ham sandwiches (the rest). you should get 4.

So, 4 ( the ham ) should be fractured by 12 ( all kinds of sandwiches robert already made. now your final answer should be :

4/12

How do you write it:

3 + 5

= 8

= 12 - 8

= 4

= 4/12 #

now, 4/12 is already correct. however, you may have to simplify the equation. so now, your final answer should be:

1/3

(my english is not so good so i hope you can understand my explanation well enough.)

7 0

1 year ago

Acrosonic's production department estimates that the total cost (in dollars) incurred in manufacturing x ElectroStat speaker sys

il63 [147K]

Answer:

a) $P(x)=-0.042x^2+530x-18000$

b) $P'(x)=-0.084x+530$

$P'(4000)=194$

$P'(9500)=-268$

Step-by-step explanation:

We know that Revenue is our total income and cost is our total cost. Thus, profit is what's left after cost is subtracted from Income (revenue). Thus, we can say:

P(x) = R(x) - C(x)

Finding Profit Function (P(x)):

$P(x) = R(x) - C(x)\\P(x) = -0.042x^2+800x-(270x+18000)\\P(x)=-0.042x^2+800x-270x-18000\\P(x)=-0.042x^2+530x-18000$

This is the profit function.

The marginal profit is the profit earned when ONE ADDITIONAL UNIT of the product is sold. This is basically the rate of change of profit per unit. We find this by finding the DERIVATIVE of the Profit Function.

Remember the power rule for differentiation shown below:

$\frac{d}{dx}(x^n)=nx^{n-1}$

Now, we differentiate the profit function to get the marginal profit function (P'):

$P(x)=-0.042x^2+530x-18000\\P'(x)=2(-0.042)x^1+530x^0-0\\P'(x)=-0.084x+530$

This is the marginal profit function , P'.

We need to find P'(4000) and P'(9500). So we basically put "4000" and "9500" in the marginal profit function's "x". The value is shown below:

$P'(x)=-0.084x+530\\P'(4000)=-0.084(4000)+530\\P'(4000)=194$

and

$P'(x)=-0.084x+530\\P'(9500)=-0.084(9500)+530\\P'(9500)=-268$

6 0

3 years ago

What is the irrational number in This set: 12.89, square root of 12 and 12/144 ?

kifflom [539]

Good night,

Irrational numbers are those that can't be expressed as a fraction:

12.89 can be expressed as: $\frac{1289}{100}$

$\frac{12}{144}= \frac{1}{12}$

The above numbers can be expressed as a fraction, then the logical answer is: $\sqrt{12}$

But we will check the answer:

$\sqrt{12}= \sqrt{2^{2}*3 } =2* \sqrt{3} =3.4641016...$

As you can see we can't express that number as a fraction, so that is te correct answer.

6 0

3 years ago

7. Is the simplified form of 2 square root of 3 ⋅ 2 square root of 6 rational? (1 point)

Lynna [10]

Answer:

Yes

Step-by-step explanation:

I've done this before.

6 0

3 years ago

If a = 5, b = 4, and c = 7, find the value for 3(b + a) = c. 10 15 34 20

Debora [2.8K]

Answer:

Step-by-step explanation:

3 (b + a) = c

3 (4 + 5) = 7

12 + 15 = 7

27 = 7

27 - 7

7 0

3 years ago

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