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TiliK225 [7]
3 years ago
11

How do you solve x^2-16=0

Mathematics
2 answers:
kvasek [131]3 years ago
4 0

kamsned hardy jafru 1234

stiks02 [169]3 years ago
4 0

Answer:

x = 4, x = -4.

Step-by-step explanation:

We can start by adding 16 to both sides:

x^2 - 16 (+16) = 0 (+16).

This gives us x^2 = 16.

\sqrt{16} = 4 and -4, so that is our answer.

<u>Check:</u>

4^2 -16 = 0.

4^2 = 16:

16 -16 = 0.

OR:

(-4)^2 - 16 = 0.

(-4)^2 = 16.

16 - 16 = 0.

So, our answer could be 4 or -4.

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TRUE/FALSE. the lengths of the altitude of a hypotenuse is the geometric mean of the lengths of the segments of each of the legs
vitfil [10]

In Right Angled Triangle the lengths of the altitude of a hypotenuse is the geometric mean of the lengths of the segments of each of the legs is TRUE

What is a Right angled triangle?

A triangle is said to be right-angled if one of its angles is exactly 90 degrees. The total of the other two angles is 90 degrees. Perpendicular and the triangle's base are the sides that make up the right angle. The longest of the three sides, the third side is known as the hypotenuse.

The right triangle's three sides are interconnected. The Pythagorean Theorem explains this connection. This theorem states that the Hypotenuse2 = Perpendicular2 + Base2.

  • The right angle, or 90°, is always one angle.
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Let assume a right-angled triangle ABC, right-angled at A.

Let AD be the perpendicular drawn from vertex A on hypotenuse BC, intersecting BC at D.

Now, In right-angle triangle ABC,

By using Pythagoras Theorem, we have

AB^2 +AC^2 = BC^2

Now, In right-angle triangle ABD

Using Pythagoras Theorem, we have

AB^2 =AD^2 + BD^2

Now, In right-angle triangle ACD,

AC^2 = AD^2+CD^2

On adding equation (2) and (3), we get

AB^2 +AC^2 = 2AD^2+ BD^2 +CD^2

Now, using equation (1), the above equation can be rewritten as

2AD^2 +CD^2+BD^2 = BC^2

can be further rewritten as

2AD^2 +BD^2 +CD^2 = (CD+BD)^2\\\\BD^2 +CD^2 +2(BD)(CD)=2AD^2 +BD^2 +CD^2\\\\(BD)(CD)=AD^2

AD is geometric mean of BD and CD

Learn more about Right angled triangle from the link below

brainly.com/question/3770177

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Fittoniya [83]
D. Linear y= -x - 1

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In a certain urban are, the relationship between , number of students ,x, in thousands, and the number schools, y, has an x-inte
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