All categories

3 years ago

-24 - (2x + 7) - 11 - 3x

Mathematics

1 answer:

Debora [2.8K]3 years ago

3 0

The answer should be -42-5x

You might be interested in

Which equation represents a parabola with a focus of (0, 5) and a directrix of y=-1?

Anika [276]

Answer:

x^2 = 12 (y - 2)

Step-by-step explanation:

how to explian

7 0

3 years ago

Eliana has 40$. she plans to save $25 every week to buy a plane ticket that costs $365. how many weeks will it take her to save

SpyIntel [72]

Answer:

c. 13 weeks

Step-by-step explanation:

365-40=325 (to find what she needs to make)

325/25=13 (how long the amount she makes a week will take to finish the cost of the ticket.)

6 0

2 years ago

Read 2 more answers

If 62% of 80 classmates like hip-hop, but 70% of 60 relatives like hip-hop, which one is more?

SIZIF [17.4K]

62 percent of 80 is more

Step-by-step explanation:

the 62 percent of 80 comes out to 49.6 people and the other one comes out to 42 people

i dont know how to explain how to do it

8 0

2 years ago

Read 2 more answers

The rate of growth of profit (in millions) from an invention is approximated by Upper P prime (x )equals x e Superscript negati

Alecsey [184]

Answer:

The function is $P(x) = \frac{1}{2} e^{-x^2} +0.016$

Step-by-step explanation:

From the question we are told that

The rate of growth is $P'(x) = xe^{x} - x^2$

The total profit is $P(2) =$ $25,000

The time taken to make the profit is $x = 2 \ years$

From the question

$P'(x) = xe^{-x^2}$ is the rate of growth

Now here x represent the time taken

Now the total profit is mathematically represented as

$P(x) = \int\limits {P'(x)} \, = \int\limits {xe^{-x^2}} \,$

So using substitution method

We have that

$u = - x^2$

$du = 2xdx$

$p(x) = \int\limits {\frac{1}{2} e^{-u}} \, du$

$p(x) = {\frac{1}{2} [ e^{-u}} +c ]$

$p(x) = {\frac{1}{2} e^{-x^2}} + \frac{1}{2} c$ recall $u = - x^2$ and let $\frac{1}{2} c = Z$

At x = 2 years

$P(x) =$ $25,000

Since the profit rate is in million

$P(x) =$ $25,000 = $\frac{25000}{1000000} =$ $0.025 millon dollars

$0.025 = {\frac{1}{2} e^{-2^2}} + Z$

=> $Z = 0.025 - {\frac{1}{2} e^{-2^2}}$

$Z = 0.016$

So the profit function becomes

$P(x) = \frac{1}{2} e^{-x^2} +0.016$

5 0

3 years ago

A quarter back is sacked for a loss of 5 yards. On the next play, his team loses 15 yards. Then the team gains 12 yards on the t

Romashka [77]

The final amount of yards the team has is 8 yards.

5 0

3 years ago