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3 years ago

Find the difference: (4y^2+2y−8)−(7y^2+4−y)

Mathematics

1 answer:

Anon25 [30]3 years ago

6 0

Answer:

−3y^2+3y−12

Step-by-step explanation:

Simplify the equation.

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What is 8.675 as a mixed number in simplified formation

7nadin3 [17]

8 675/1000

8 27/40

hope this helps

4 0

3 years ago

Shelby is starting a business selling handmade necklaces. She has decided to invest an initial amount of $172 for advertising, a

8_murik_8 [283]

Answer:

-43 necklaces.

-total expenses=Sales=$473

Step-by-step explanation:

The breakeven point is the point where the sales revenue equals the expenditure.

-The fixed expenses is $172

-Let x be the number of necklaces sold, the breakeven point is expressed as:

$Sales= Expenses\\\\11x=7x+172\\\\4x=172\\\\x=43$

Hence, Shelby has to sell 43 necklaces to breakeven.

#The expenses at the breakeven point is:

$E=7x+172\\\\=7\times43+172\\\\=473$

Hence, expenses at breakevent point is $473

#Sales is equal to expenses at this point, hence, sales of $473

4 0

3 years ago

The population of Adamsville grew from 6000 to 13000 in 7 years. Assuming uninhibited exponential growth, what is the expected p

IgorLugansk [536]

Answer:

18107.32

Step-by-step explanation:

Set up the exponential function in the form:

$P = P_0(R)^t$

so P is the new population, $P_0$ is the original population, R is the rate of increase in population, and t is the time in years.

You have to use the information given to find the rate that the population is increasing and then use that rate to find the new population after more time passes.

$13000 = 6000(R)^7\\\\\\frac{13000}{6000} = R^7\\\\\sqrt[7]{\frac{13000}{6000} } = R\\\\\\ R = 1.116786872$

Now that you found the rate, you can use the function to find the population after another 3 years.

$P = 13000(1.116786872)^3\\P = 18107.32317\\$

So the population is 18107, rounded to the nearest whole number.

4 0

4 years ago

What does volume equal

UNO [17]

Volume equals mass divided by density.

Hope this helps,

kwrob

5 0

3 years ago

Read 2 more answers

Select all the points that are on the graph of the line 2x + 4y=20 a.)(0.5) b. (0,10) c. (1,2) d.) (1,4) e.) (5,0) f. (10,0)

zmey [24]

Answer:

(0,5) and (10,0)

Step-by-step explanation:

The equation of the straight line is given by 2x + 4y = 20 .......... (1)

Now, point (0,5) satisfies the equation (1) as putting x = 0, we will get y = 5.

Now, point (0,10) does not satisfy the equation (1) as putiing x = 0, we get y = 5 ≠ 10

Again, point (1,2) does not satisfy the equation (1) as putiing x = 1, we get y = 4.5 ≠ 2

Now, point (1,4) does not satisfy the equation (1) as putiing x = 1, we get y = 4.5 ≠ 4

Again, point (5,0) does not satisfy the equation (1) as putiing y = 0, we get x = 10 ≠ 5

Finally, point (10,0) satisfies the equation (1) as putiing y = 0, we get x = 10 .

Therefore, only points (0,5) and (10,0) are on the graph of the line 2x + 4y = 20 (Answer)

8 0

3 years ago

Find the difference: (4y^2+2y−8)−(​7y^2+4−y)

Find the difference: (4y^2+2y−8)−(7y^2+4−y)