3 years ago

A claim is made that expression 1 and expression 2 are equivalent. A student is asked to provide proof that the claim is true.

Mathematics

2 answers:

Nezavi [6.7K]3 years ago

7 0

Answer:

The answer is B and A

Step-by-step explanation:

finlep [7]3 years ago

5 0

Answer:

The answer is B

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Find the measure of x.

Sunny_sXe [5.5K]

Answer:

$\large\boxed{x=2\sqrt{181}\approx26.91}$

Step-by-step explanation:

If AB is a tangent of a circle, then the angle B is right angle. Therefore the triangle ABC is a rigth triangle.

BC and x are the radius of a circle. Therefore BC = x.

Use the Pythagorean theorem:

$BC^2+BA^2=AC^2$

We have

$BC=x,\ BA=80,\ AC=82$

Substitute:

$x^2+80^2=82^2$

$x^2+6400=6724$ subtract 6400 from both sides

$x^2=724\to x=\sqrt{724}\\\\x=\sqrt{4\cdot181}\\\\x=\sqrt4\cdot\sqrt{181}\\\\x=2\sqrt{181}$

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4 years ago

What is the solution to this system of equations?

xeze [42]

(-8,-5) is the answer in coordinate pairs

4 0

3 years ago

Does someone mind helping me with this problem? Thank you!

Damm [24]

Using the Pythagorean theorem:

c = sqrt(8^2 + 7^2)

c = sqrt(64 + 49)

c = sqrt(113)

c = 10.6

7 0

2 years ago

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PQRS is a parallelogram with PQ=26cm and QR=20cm . If the distance between the longer-sides is 12.5cm , Find

Kay [80]

Answer:

Below.

Step-by-step explanation:

I am guessing you want the area of the parallelogram.

Take the longer side to be the base.

Area = base * distance between base and opposite side

= 26 * 12.5

= 325 cm^2.

6 0

3 years ago

Answer the questions in the picture.

Fudgin [204]

Answer:

MEDIAN = 6

Step-by-step explanation:

FORMULA = (n+1)÷2

4 0

3 years ago

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