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3 years ago

Find the missing length

Mathematics

1 answer:

sashaice [31]3 years ago

7 0

The figure is a large right triangle and therefore the pythagorean theorem can be applied. According to the pythagorean theorem, a right triangle can have legs that are three and four units with a five unit hypotenuse.
In this example, one leg is 15 units so the other must be 20 units with a 25 unit hypotenuse. The hypotenuse is equal to x plus 9 so the value of x must be 16.
final answer x=16

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V125BC [204]

Answer:

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3 years ago

Solve -7x^2+x+9=-6x quadratic formula

myrzilka [38]

Answer:

$-7x^2+x+9=-6x$

$-7x^2+x+9+6x=-6x+6x$

$-7x^2+7x+9=0$

$quadratic\: formula$

$x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}$

$\sqrt{-7^{2} -4(-7)\times9} =\sqrt{301}$

$x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}$

$\frac{-7+\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7+\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7+\sqrt{301}}{-14}$

$\frac{-7-\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7-\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7-\sqrt{301}}{-14}$

$answer=\frac{7+\sqrt{301}}{14}$

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7 0

3 years ago

Si en una empresa hay 120 trabajadores 3/8 son españoles y el resto europeos. Cuántos europeos hay?

Kobotan [32]

Answer:

75 Europeos

Step-by-step explanation:

3/8 X 120= 360/8 = 45

120-45= 75

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3 years ago

What is the area of this triangle?

Aleonysh [2.5K]

I think the area of this triangle is 27.1 square cm. Hope it help!

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3 years ago

Is 6.3 > 6.04 reasonable yes or no Explain

Brums [2.3K]

Answer:

Yes

Step-by-step explanation:

By rounding to the 10ths place, we can easily see that 6.3 is greater than 6.04. 6.3 is already rounded to the 10ths place, but 6.04 rounded to the 10ths place is 6.0.

6.3 is clearly more than 6.0, therefore 6.3 is greater than 6.04.

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2 years ago