3 years ago

Write an algebraic expression for the word expression. The product of 8 and z

Mathematics

1 answer:

Law Incorporation [45]3 years ago

5 0

Answer:

Step-by-step explanation:

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Coficient of x^2 in -4x^2

Pani-rosa [81]

Answer:

-4

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3 years ago

Circle Q is centered at the origin with radius r. Point P(x, y) lies on circle Q. Make a conjecture. How can you find an equatio

salantis [7]

Answer:

The relation $x^{2} +y^{2} =r^{2}$ is explained below.

Step-by-step explanation:

P(x, y) is a point on the circle. Q is the origin. Join PQ.

PQ is the radius.

Therefore, PQ = r

Draw PS perpendicular to the x-axis.

Now, ΔPQS is a right triangle.

By Pythagoros theorem,

$PQ^{2}=PS^{2} +QS^{2}$

$r^{2}=x^{2} +y^{2}$

$x^{2} +y^{2} =r^{2}$

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4 years ago

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A triangle is placed in a semicircle with a radius of 9 cm

julsineya [31]

Considering that the shaded area is the part of the semi circle outside the triangle:
Area of circle= Pi x radius2 (this means radius squared)
Area of triangle= 1/2 x base x height
1/2 (because it is a semi circle) x 3.14 (in replacement of pi as directed by question) x 9squared= 127.17

127.17 - (1/2 x 18 x 9) = 46.17cmsquared

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3 years ago

What is 8,489÷9.This is 50 points question

s2008m [1.1K]

943.222222222222222222 (the 2 repeats) and it is rounded to 943.

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4 years ago

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Type the correct answer in each box.

Fittoniya [83]

the answer would be 2.5

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3 years ago

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