3 years ago

I really need helppppppp on yhis wb homework

Mathematics

1 answer:

Slav-nsk [51]3 years ago

4 0

You'll have to do 9.33 plus 1.32 seconds

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A triangle has sides with lengths of 9 yards, 12 yards, and 15 yards. Is it a right triangle?

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Answer:

Yes

Step-by-step explanation:

Plug your values into the Pythagorean Theorem to check if they make sense

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3 years ago

What is the solution to the following 21+x=13

Hitman42 [59]

Answer:x=-8

Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8

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Assume two radar stations which are 39 miles apart are both tracking a plane. At a given moment, the angle between station 1 and

SpyIntel [72]

Answer:

37.3 miles

Step-by-step explanation:

180 - 59.83 - 55.54 = 64.63°

39/sin64.63 = X/sin59.83

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3 years ago

Write the quadratic equation that has roots -1-rt2/3 and -1+rt2/3 if its coefficient with x^2 is equal to 1

weeeeeb [17]

The equation of the quadratic function is f(x) = x²+ 2/3x - 1/9

<h3>How to determine the quadratic equation?</h3>

From the question, the given parameters are:

Roots = (-1 - √2)/3 and (-1 + √2)/3

The quadratic equation is then calculated as

f(x) = The products of (x - roots)

Substitute the known values in the above equation

So, we have the following equation

$f(x) = (x - \frac{-1-\sqrt{2}}{3})(x - \frac{-1+\sqrt{2}}{3})$

This gives

$f(x) = (x + \frac{1+\sqrt{2}}{3})(x + \frac{1-\sqrt{2}}{3})$

Evaluate the products

$f(x) = (x^2 + \frac{1+\sqrt{2}}{3}x + \frac{1-\sqrt{2}}{3}x + (\frac{1-\sqrt{2}}{3})(\frac{1+\sqrt{2}}{3})$

Evaluate the like terms

$f(x) = x^2 + \frac{2}{3}x - \frac{1}{9}$

So, we have

f(x) = x²+ 2/3x - 1/9

Read more about quadratic equations at

brainly.com/question/1214333

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1 year ago

How do you know whether an equation is an identity?

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?????????????????????????????

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3 years ago