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2 years ago

R, S, Q and P are the midpoints of OC, CB, BA and OA respectively.

Mathematics

1 answer:

Stolb23 [73]2 years ago

3 0

Answer:

See below.

Step-by-step explanation:

Draw segment OB.

In triangle OBC, points R and S are the midpoints of sides OC and BC, respectively. That makes RS parallel to OB.

In triangle OBA, points P and Q are the midpoints of sides OA and BA, respectively. That makes PQ parallel to OB.

Since segments RS and PQ are parallel to segment OB, then RS and PQ are parallel to each other.

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Answer:

A triangle and an octagon

Step-by-step explanation:

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2 years ago

Find the area. Simplify your answer.<br> 3x-3<br> 3x+6

maw [93]

Answer:

3x^2 + 7x - 18

Step-by-step explanation:

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3 years ago

Find the center and radius of the circle whose equation is x 2 + y 2 + 10x − 1

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we conclude that the center of the circle is the point (-5, 0).

<h3>How to find the center of the circle equation?</h3>

The equation of a circle with a center (a, b) and a radius R is given by:

$(x - a)^2 + (y - b)^2 = R^2$

Here we are given the equation:

$x^2 + y^2 + 10x - 1 = 0$

Completing squares, we get:

$x^2 + 10x + y^2 = 1$

Now we can add and subtract 25 to get:

$x^2 + 10x + 25 - 25 + y^2 = 1\\\\(x + 5)^2 -25 + y^2 = 1\\\\(x + 5)^2 + (y - 0)^2 = 26$

Comparing that with the general circle equation, we conclude that the center of the circle is the point (-5, 0).

If you want to learn more about circles:

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2 years ago

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Sergio [31]

Answer:

6 2/7

Step-by-step explanation:

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2 years ago

Joe bought a box of laundry detergent that contains 195 scoops.

7nadin3 [17]

Answer:

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Step-by-step explanation:

If the box contains 195 scoops and at once he uses 2 1/2 you have to divide 195 by 2 1/2 and you get 78.

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2 years ago