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EastWind [94]
3 years ago
11

PLEASE HELP ASAP PLEASE!! WILL GIVE BRAINLEST PLEASE​

Mathematics
2 answers:
photoshop1234 [79]3 years ago
7 0

Answer:

105

Step-by-step explanation:

To find the surface area, we need to find the area of all the sides. There are five sides, but four of them are exactly the same.

To find the area of a triangle, you need to do width x height / 2. The width is five and the height is eight. 5 x 8 / 2 = 20. There are three more sides that have the exact same area as this. Since there are four sides that have a surface area of twenty, we do 20 x 4 = 80. Then, we find the area of the bottom piece. To find the area of a square, you need to do length x width. 5 x 5 = 25. Then, we add our two areas to get the final result. 80 + 25 = 105. Therefore, 105 is the surface area of the pyramid.

Hope this helps! Thanks for brainliest! :D

Ksivusya [100]3 years ago
6 0

Answer:

what is 5x5x8

Step-by-step explanation:

5x5=25

25x8=200

so your awnser is 200

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Factor completely 16x^2 – 64
jeka57 [31]

Answer:

16(x-2)(x+2)

Step-by-step explanation:

8 0
3 years ago
Find the product of (x + 9i)^2<br> Find the product of (x+(3+5i))^2
Ket [755]
Remember that
i =  \sqrt{1}
so
{i}^{2}  =  - 1  \:  \: and \:  \: {i}^{3} =  - i \:  \:  \: and  \:  \:  {i}^{4}  = 1
(a+ b)^2 = a^2 + 2ab + b^2

1. x^2 + 2x*9i + (9i)^2 = x^2 + 18xi - 81

2. x^2 + 2x*(3+5i)+ (3+5i)^2 = x^2 + 6x + 10xi+ 9+30i-25 = x^2 - 16 + 30i + 6x + 10xi
3 0
3 years ago
Please help me is for my homework​
oksian1 [2.3K]

I hope this help you

7 0
3 years ago
Please help answer these question​ I will give you brainliest
ozzi

Answer:

1) \frac{6+\sqrt{6} }{2}       2) -3 + \sqrt{12}

Step-by-step explanation:

Please ignore the squiggle in the middle of the page.

Please mark brainliest when you’re able :)  

8 0
3 years ago
Read 2 more answers
Rectangle PQRS is rotated 90 counterclockwise about the origin what are the coordinates of point Q
inna [77]
You have not provided the diagram/coordinates for point Q, therefore, I cannot provide an exact answer.
However, I can help you with the concept.

When rotating a point 90° counter clock-wise, the following happens:
coordinates of the original point: (x,y)
coordinates of the image point: (-y,x)

Examples:
point (2,5) when rotated 90° counter clock-wise, the coordinates of the image would be (-5,2)

point (1,9) when rotated 90° counter clock-wise, the coordinates of the image would be (-9,1)

point (7,4) when rotated 90° counter clock-wise, the coordinates of the image would be (-4,7)

Therefore, for the given point Q, all you have to do to get the coordinates of the image is apply the transformation:
(x,y) .............> are changed into.............> (-y,x)

Hope this helps :)
5 0
3 years ago
Read 2 more answers
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