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Tomtit [17]
3 years ago
8

Solve quadratic equations by completing the square x^{2}+13x+22=0

Mathematics
1 answer:
Leno4ka [110]3 years ago
7 0
I hope this helps you



x^2+13x+22=0



(x+11)(x+2)=0



x= -11


x= -2
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17.003 - 0.374 please show work
asambeis [7]

Answer:

16.629

Step-by-step explanation:

Start by setting up the numbers like the first picture. The borrow. To borrow we have to go the whole way over to the 7 since you can't borrow from 0. So the 7 becomes a 6 and the 0 becomes  10. Then the 10 becomes a 9 and the 0 becomes a 10. Then the 10 becomes a 9 and the 3 becomes a 13. Then subtract. Just bring the decimal point down.

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In the given right triangle, find the missing length to the nearest tenth.
Jlenok [28]

Answer:

D. 25 ft.

Step-by-step explanation:

To find the missing length of any right triangle, you can use the Pythagorean Theorem (A^2+B^2=C^2) to solve. A and B represent the legs (which we do have) and C represents the hypotenuse (which we are trying to find). Insert our known values into the theorem, and we will get 24^2+7^2=C^2. Now we just do the basic math for the numbers that we have (24^2 is 576<em>;</em><em> </em>7^2 is 49), and that added up would equal to 625. Now, since C is being squared on the other side, we now have to root both sides. On the side where C is, the radical and the square will cancel out each other, leaving us with just C. But, on the side where 625 is, it should root to 25. Since C is by itself now, the number on the other side (25) will be our answer. Therefore, the missing side is 25 feet long.

8 0
3 years ago
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Solve for w<br><br> -w + 181 = 128<br><br> w = ____
JulsSmile [24]
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Solution:

<u>A few definitions...</u>

  • Rational number - Any integer, fraction, terminating decimal, or repeating decimal is classified as a rational number
  • Irrational number - All the real numbers which are not rational numbers.

<u>Option A - Rational or Irrational?</u>

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Since both are known as fractions, they are rational numbers.

<u>Option B - Rational or Irrational?</u>

  • √2 + 5/2

√2 is classified as an Irrational number because if it is simplified, it does not result in any integer, fraction, terminating decimal, or repeating decimal.

<u>Option C - Rational or Irrational?</u>

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  • => 1/2 + 7/2
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Since this is an integer, this is rational.

<u>Option D - Rational or Irrational?</u>

  • √9 + √4
  • => √3 x 3 + √2 x 2
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Since this is an integer, this is rational.

In conclusion...

Option B is correct.

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Answer:

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Step-by-step explanation:

From this, we can set up the equation

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We can solve for m in order to find out how many minutes Abdul spoke for

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