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otez555 [7]
3 years ago
7

What is the difference? mc005-1.jpg

Mathematics
2 answers:
IRINA_888 [86]3 years ago
8 0
Im pretty sure its B
sp2606 [1]3 years ago
6 0
<h2>Answer</h2>

\frac{x^2+4x-1}{x(x+2)}

<h2>Explanation </h2>

Remember that to subtract fractions we need to find the common denominator first.

To find it, the first thing we need to do is factor the denominator of the second term:

\frac{x+5}{x+2} -\frac{x+1}{x^2+2x}

\frac{x+5}{x+2} -\frac{x+1}{x(x+2}

Since x+2 is a common factor in both denominators, the common denominator of both fractions is x(x+2)

Now, we can express both fraction with the common denominator and simplify:

\frac{x+5}{x+2} -\frac{x+1}{x(x+2}

\frac{x(x+5)-(x+1)}{x(x+2)}

\frac{x^2+5x-x-1}{x(x+2)}

\frac{x^2+4x-1}{x(x+2)}

We can conclude that the correct answer is the first choice.

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9 is what percent of 50
il63 [147K]

Answer:

18

Step-by-step explanation:

9/50=18/100

3 0
3 years ago
The vertices of a triangle are located at X(-2,-1), Y(2,5) and Z(4,3). What is the perimeter of this triangle?
Lana71 [14]
If you plot the points you will find you have to use the distance formula. Pick out 2 pairs label them (x1,y1) (x2,y2) then plug it into the distance formula. The repeat for the other sides. So you should get (2,5) (4,3) plug into distance formula what is get it distance between those two points, then (4,3) (-2,-1) plug into distance formula to get an answer, lastly (-2,-1) (2,5) plug in. Now you have three answers add all together and here is your perimeter of a triangle.
3 0
3 years ago
1. Calculate the simple interest over an amount of N$ 2500 that is invested for 3 years and 6 months at a rate of 7% pa.​
Umnica [9.8K]

Answer:

N$  612.5

Step by step explaination:

Given,

Principal or'P'=N$2500

Time or'n'=3 years & 6 months or 3.5 years

Rate of profit or 'r'=7% or 7/100

Profit or 'I'=?

_____________________________________

We know,

I=P*n*r

I=2500*3.5*7/100

I=612.5

So,simple interest is N$  612.5.

3 0
3 years ago
What is the value of 110% of 1/2 of 1/4 of 64.
Alex787 [66]

Step-by-step explanation:

110/1000*1/2*1/4*64/1

110*1*1*64=7040

1000*2*4*1=8000

7040/8000

704/800

3 0
3 years ago
Please help me with this question
san4es73 [151]

Step-by-step explanation:

Given: f'(x) = x^2e^{2x^3} and f(0) = 0

We can solve for f(x) by writing

\displaystyle f(x) = \int f'(x)dx=\int x^2e^{2x^3}dx

Let u = 2x^3

\:\:\:\:du=6x^2dx

Then

\displaystyle f(x) = \int x^2e^{2x^3}dx = \dfrac{1}{6}\int e^u du

\displaystyle \:\:\:\:\:\:\:=\frac{1}{6}e^{2x^3} + k

We know that f(0) = 0 so we can find the value for k:

f(0) = \frac{1}{6}(1) + k \Rightarrow k = -\frac{1}{6}

Therefore,

\displaystyle f(x) = \frac{1}{6} \left(e^{2x^3} - 1 \right)

5 0
3 years ago
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