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Vladimir79 [104]
2 years ago
8

There are two students Mark and John.

Mathematics
1 answer:
V125BC [204]2 years ago
6 0

Answer:

a

Step-by-step explanation:

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Find dy/dx. if y = 8u - 6 and u = 3x - 8.
Dmitriy789 [7]

Use the chain rule:

\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm dy}{\mathrm du}\dfrac{\mathrm du}{\mathrm dx}

We have

y=8u-6\implies\dfrac{\mathrm dy}{\mathrm du}=8

u=3x-8\implies\dfrac{\mathrm du}{\mathrm dx}=3

so we get

\dfrac{\mathrm dy}{\mathrm dx}=8\cdot3=\boxed{24}

Alternatively, you can substitute <em>u</em> in the definition of <em>y</em> and differentiate with respect to <em>x</em> :

y=8u-6=8(3x-8)=24x-64\implies\dfrac{\mathrm dy}{\mathrm dx}=24

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3 years ago
Find the area A of triangle JKL with the vertices J(5,8), K(0,7), and L(5,4)
saul85 [17]
You have to measure the triangle
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3 years ago
What do you think 6x9 is? ​
FinnZ [79.3K]

Answer:

54

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
You plan on purchasing a car in the next year. The car that you are interested in lists for $23,000 after taxes, license, and do
oksano4ka [1.4K]

Answer:

c. 8 months.

Step-by-step explanation:

First off let's get the current total of how much we have saved.

2/3 of $23,000 = 15,333.33.

Now we need to get our total salary to calculate for our Social Security and Medicare.

Total Salary : $1312.00 x 2 = $2,624.00

Social Security : 6.2% or 0.062 x 2,624 = $162.69

Medicare : 1.45 or 0.0145 x 2,624 = $38.05

Now that we have our Social Security and Medicare, we can then solve for our taxes.

Taxes: $53 + $101.35 = 154.35 x 2 = $308.7

Now we can add our monthly expenses to the other expenses.

Monthly Expenses : $1,150.12

1,150.12 + 162.69 + 38.05 + 308.7

= $1659.56 Total Expenses.

Now that we have our total expenses we simply subtract it to our monthly salary.

2624.00-1659.56

= $964.44 Extra Money Monthly

Now we proceed to solve for how much more we need to make the total payment.

23000 - 15,333.33

= 7666.67

Now that we have out total balance, we just need to divide the balance to our extra money monthly.

7666.67 / 964.44

= 7.949 Months or 8 Months

6 0
3 years ago
Why do you think the government charges high taxes on cigarettes?
Rom4ik [11]
The Government Charges A High Tax On Cigarettes And Gasoline Because These Are Things They Know People Will Want To Buy. Gas Is Something Most People Need As An Everyday Essential No Matter How High They Make The Tax Someone Will Pay For It Because Its Something They Need.

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3 years ago
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