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3 years ago

6

Paul has a paperweight shaped like the square pyramid shown. what is the total surface area of paul's paperweight in square cent

imeters

1 answer:

Sergio039 [100]3 years ago

8 0

Answer:

64cm^2

Step-by-step explanation:

PLZ MARK ME AS BRAINLIEST!!!

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Write the general equation for the circle that passes through the points (1, 1), (1, 3), and (9, 2).

Burka [1]

Step-by-step explanation:

As we know that

The circle center is equidistant from all three points, the distance being the circle radius.

Any point equidistant from two points must lie on the perpendicular bisector of the line segment which join those two points.

Which is, on the line through the midpoint of the line segment, perpendicular to the line segment.

The perpendicular bisector of the line segment joining the points (1, 1) and (1, 3) will be:

$\:y=\:\frac{1+3}{2}=\frac{4}{2}=2$

The perpendicular bisector of the line segment joining the points (1, 3), and (9, 2) will be:

$x=\:\frac{1+9}{2}=\frac{10}{2}=5$

These intersect at the center of the circle (5, 2).

The distance between (1, 1) and (5, 2) will be:

$\mathrm{Compute\:the\:distance\:between\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}$

$\mathrm{The\:distance\:between\:}\left(1,\:1\right)\mathrm{\:and\:}\left(5,\:2\right)\mathrm{\:is\:}$

$=\sqrt{\left(5-1\right)^2+\left(2-1\right)^2}$

$=\sqrt{4^2+1}$

$=\sqrt{16+1}$

$=\sqrt{17}$

So the equation of the circle can be written as:

$\left(x-5\right)^2+\left(y-2\right)^2=17$

$x^2-10x+y^2+29-4y=17$

$x^2-10x+y^2-4y+12\:=0$

$x^2+y^2-10x-4y+12=0$

8 0

3 years ago

ANY HELPPPPP PLZ<br> I WILL AMRK YOU BRILLLLLLLLL

Stella [2.4K]

Answer:

The correct answer is 27

Step-by-step explanation:

- 5a - b

- 5(-6) - 3

30 - 3

= 27

5 0

3 years ago

which Two labels could you place on a Triangle with no sides equal in length and one obtuse angle? 1 obtuse and acute 2 obtuse a

Pachacha [2.7K]

Answer: 3, "obtuse and scalene".

Step-by-step explanation:

Equilateral has all sides equal, eliminate 5.

Isosceles has two sides equal, eliminate 4.

Haven't seen the word scalene since 1966...

Sum of angles is 180°, right angle is 90°, obtuse angle is more than 90°, so there is no such thing as a right and obtuse triangle, eliminate 2. Think |_/.

Similarly, only one angle can be obtuse, think \_/, so every obtuse triangle has two acute angles. But I'm pretty sure "acute triangle" is defined to exclude triangles with an obtuse angle. In that case, "obtuse and acute" is contradictory. Eliminate 1.

That leaves 3, "obtuse and scalene." So now I remember a scalene triangle is one with all three sides different.

Wondering if that means all three angles are different. Yes, because if two angles are equal, the triangle has to be isosceles with base between the equal angles, roughly /_\, so two sides are equal.

7 0

3 years ago

Bridget has swimming lessons every fifth day and diving lessons every third day. If she had a swimming lesson and a diving lesso

Klio2033 [76]

May 20th

hope this helps

4 0

3 years ago

HELPPP PLEASE OR I WONT BE ABLE TO PLAY ANY GAMESSS

Sindrei [870]

Answer:

A. 18.4

Step-by-step explanation:

The mean is the average. In order to find the answer you must add all the values of the variables and divide them by the number of variables. Simply just add 14, 15, 18, 20, and 25, and then divide it by 5 (the number of variables). Then you get your answer.

14+15+18+20+25=92

92/5=18.4

A. 18.4

5 0

3 years ago

Read 2 more answers