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mixas84 [53]
3 years ago
12

Divide 5x^2+3x-2 by x + 1

Mathematics
1 answer:
marta [7]3 years ago
3 0

5x + 8

I used long division

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The variable is x. Find a equation with x with one of the numbers. Then the answer will be x=blank
Nataly_w [17]
X=54 you do 331-7=324 the do 324/6=54 the end hope this helps
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3 years ago
Need help with this problem
Ber [7]

\frac{2x}{x + 3}  - \frac{3}{x - 4}

The LCM of x+3 and x-4 is x² - x - 12

Working out gives;

\frac{2x^2 - 8x - 3x - 9}{x^2 - x - 12}  = \frac{2x^2 - 11x - 9}{x^2 - x - 12}

Simplify further using equations calculator to get the answer as attached below:

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3 years ago
Use the Pythagorean Theorem to find the missing length in the right triangle
Gelneren [198K]

Answer:

it depends

Step-by-step explanation:

If 17 is the hypotenuse

c=17\\\\b=12\\\\a=?\\\\c^{2} =a^2+b^2\\\\17^2=a^2+12^2\\\\17^2-12^2=a^2\\\\(17-12)(17+12)=a^2\\\\5(27)=a^2\\\\a=\sqrt{9*3*5} \\\\a=3\sqrt{15} \\\\a=11.6

if you are looking for the hypotenuse

a=17\\\\b=12\\\\c=?\\\\a^2+b^2=c^2\\\\17^2+12^2=c^2\\\\289+144=c^2\\\\433=c^2\\\\c=\sqrt{433} \\\\c=20.8

8 0
3 years ago
Need DESPERATE help! I'm taking a unit test for math (k12, 10th grade) I got 3 done already so here's the ones I missed: Questio
wlad13 [49]

Answer:

Step-by-step explanation:

Question 6)

sin Y= m

sin Y = m/1

So, hypotenuse is 1

Since sine is opposite over hypotenuse

So XZ= m and YZ = 1

Similarly, cos Y = k

cos Y = k/1

So adjacent side of angle Y is k

So XY = k

cos z - sin z = \frac{XZ }{YZ } - \frac{XY}{YZ}

cos z - sin z = \frac{m }{1 } - \frac{k}{1}

cos z - sin z = m - k

Question 7)

the relationship between sine, cosine, and tangent.

tan(x) = sin(x)/cos(x) = (11/61)/(60/61)

tan(x) = 11/60

Question 8)

Start with where the shorter leg is. It must be opposite the smallest angle.

In a 30 - 60 - 90 degree triangle you have the hypotenuse to be twice as long as the shortest side. You have to read that a couple of times to make sure you understand it. 

That being said, if the shortest side is x, the hypotenuse will be 2x.

Since in this case the shortest side is 11, the hypotenuse will be 2*11 = 22

The answer is 22

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3 years ago
What's five decimal 55 as a fraction
Gnom [1K]
5.55 = 5 55/100 = 555/100 = 111/20
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3 years ago
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