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Artyom0805 [142]
4 years ago
10

Please help with surface area

Mathematics
2 answers:
Lyrx [107]4 years ago
8 0

Answer:

First you have to find the area of the triangles, and you do so by using the formula A = (B·H)/2, where the a represents area, b represents base, and h represents height. Assuming all of the triangles are the same, you multiply 7 by 11 and then divide by 2 which equals 38.5 and then multiply that by 4 which equals 154 and then you have the area of all four triangles combined. Then to find the area of the cube you simply square 7, which results in 49, and then add that to the area of the triangles, which leaves you at 203. <u>203 square inches is your answer. </u>

Step-by-step explanation:

mestny [16]4 years ago
6 0

Answer:

203 square inches.

Step-by-step explanation:

First you have to find the area of the triangles, and you do so by using the formula A = (B·H)/2, where the a represents area, b represents base, and h represents height. Assuming all of the triangles are the same, you multiply 7 by 11 and then divide by 2 (which equals 38.5) and then multiply that by 4 (which equals 154) and then you have the area of all four triangles combined. Then to find the area of the cube you simply square 7, which results in 49, and then add that to the area of the triangles, which leaves you at 203. 203 square inches is your answer.

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Let's first start off by making 2/10 the same denominator as 5/100. To do this you would need to multiply both sides of the fraction by 10. You wild end up with 20/100. Now we worry about the striped fish. There are 5/100 striped fish, since we have the same denominator we can add them together! 20+5=25 25/100 is reduced to 1/4!
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3 years ago
PLEASE SHOW ALL STEPS!!!!
sukhopar [10]

Answer:

Center (1,3) and radius 6

Step-by-step explanation:

We must complete the square to find the center and radius of the circle.

First make sure the x and y squared terms have 1 as their coefficients. We also make sure x and y terms together.

x^2-2x+y^2-6y=26

We now create space between the x and y terms with parenthesis.

(x^2-2x)+(y^2-6y)=26

We complete the square by taking the middle terms -2x and the -6y - divide each and square them.

\frac{-2}{2} =(-1)^{2} =1

\frac{-6}{2} =(-3)^{2} =9

We add the squares to both sides.

(x^2-2x+1)+(y^2-6y+9)=26+1+9

Simplify.

(x^2-2x+1)+(y^2-6y+9)=36

And write the quadratics in factored form.

(x-1)^{2} +(y-3)^{2} =36

The center is (h,k) or (1,3). The radius is the square root of 36 which is 6.

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Answer:

d ≤ 4

Step-by-step explanation:

4d + 7 ≤ 23

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4d ≤ 16

d ≤ 4


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