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2 years ago

Evaluate the expression for. x = -10 and y = 100. problem: x²-y

Mathematics

1 answer:

olchik [2.2K]2 years ago

5 0

Answer:

The answer is 0

Step-by-step explanation:

Hope this helps:-)

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What is the greatest common factor of the numerator and denominator of the rational expression below? 5x-20/x^2-2x-8

OleMash [197]

Factories both equations:
5(x - 4) / (x + 2)(x - 4)

Then take out the common brackets:
5 / x + 2

Minus 2 from both sides:
3 / x

If you are looking for the greatest common factor of the numerator and denominator, the answer would be (x - 4)

8 0

3 years ago

The advertised size of a computer or television screen is actually the length of the diagonal of

andreyandreev [35.5K]

Answer:

37.5 cm

Step-by-step explanation:

See attached for reference.

let the diagonal be x,

By Pythagorean formula:

x² = (22.5)² + (30)²

x = √[(22.5)² + (30)²]

x = 37.5 cm

4 0

3 years ago

Can Someone Please Help With my homework

Arada [10]

Answer:

Step-by-step explanation:

She already has 75 points. 140-75 is 65. 65/6.5 is 10.

5 0

2 years ago

Find the area. The figure is not drawn to scale

poizon [28]

Answer:

96 square inches.

Step-by-step explanation:

From given picture we see that

BC=8 in

AD=10 in

Given that

AD=AB

Then AB=10 in

Apply Pythagorean theorem in triangle ABC to find AC

$(hypotenuse)^2=(base)^2+(perpendicular)^2$

$(AB)^2=(BC)^2+(AC)^2$

$(10)^2=(8)^2+(AC)^2$

$100=64+(AC)^2$

$100-64=(AC)^2$

$36=(AC)^2$

take square root

$6=AC$

Then area of triangle ABC $=\frac{1}{2}\left(base\right)\left(altitude\right)$

$=\frac{1}{2}\left(8\right)\left(6\right)=24$

There are total 4 congruent triangles.

Then total area of the given figure = 4(24)=96 square inches.

7 0

2 years ago

List the multiples of 4 starting from 40

Alexxandr [17]

40,44,48,52,56,60,64,68,72,76,80.........

4 0

2 years ago

Read 2 more answers