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Reptile [31]
3 years ago
8

Please help me I can’t fail it

Mathematics
1 answer:
Hoochie [10]3 years ago
8 0

Answer:

Step-by-step explanation:

1.rational

2.irrational

3.rational

4.rational

5.rational

6.irrational

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Answer now pleaseee
ivolga24 [154]

Answer:

the two values that are a distance of 5 from 0 are -5 and 5.

Step-by-step explanation:

if you look at a number line, you will see that the number 0 is in the middle. if you count 5 from each side, it's -5 and 5. any other number would have a greater distance than 5 from 0. hope this helps.

3 0
3 years ago
Read 2 more answers
in a mix of red and white pebbles in a bag in the ratio of 3 to 7. Find the probability that if 3 pebbles are chosen from the mi
Kay [80]
The probability is 3 to 7.
8 0
3 years ago
mary is eighteen years older than her son. she was three times as old as he was one year ago.How old are they now?
zimovet [89]

Answer:

<h2>The son is 10 Mary is 28</h2>

Step-by-step explanation:

I hope dis helps

4 0
3 years ago
Find:
JulijaS [17]

Answer:

a) 15 ÷ 2/3=

=1 5 x 3/2=45/2

b) 3 × 1/8 × 6/9

=1/8 x 2(  Simplify 3 with 9 remainder 3, reduce

6 with 3 remainder 2)

=1/4

c) 3 3/5 ÷ 2 2/5

=18/5 : 12/5

=18/5 . 5/12

=3/2

d) 2 1/12 × 1 1/5

= 25/12 . 6/5

=5/2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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

c)

P'(4000)=194

P'(9500)=-268

Step-by-step explanation:

a)

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.

b)

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'.

c)

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
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