2 years ago

Find the surface area of the prism

Mathematics

1 answer:

scoray [572]2 years ago

3 0

Surface area of one face = 9x9 = 81
total no. of faces = 6
total surface area of prism = 81 x 6 = 486in.

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A napkin has an area of 5 square inch. what is the side length of the napkin

shutvik [7]

To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.

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3 years ago

Alberto ran a race at a speed of 9 meters per second. Omar had a 6 meter head start and ran at a speed of 7 meters per second. B

zloy xaker [14]

Answer: Alberto run 27 meters.

Time taken By Alberto=3 seconds

Step-by-step explanation:

Let d be the distance Alberto ran to catch Omar.

Then, distance ran by Omar=x-6

Also, $\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

Since, both started running at the same time.

Time taken By Alberto= $\frac{x}{9}$

Time taken By Omar= $\frac{x-6}{7}$

Now, at the point they meet time taken by both is equal.

$\frac{x}{9}=\frac{x-6}{7}\\\Rightarrow\ 7x=9(x-6)\\\Rightarrow7x=9x-54\\\Rightarrow9x-7x=54\\\Rightarrow\ 2x=54\\\Rightarrow\ x=27$

Hence, Alberto run 27 meters.

Time taken By Alberto= $\frac{27}{9}$ =3 seconds

6 0

3 years ago

Factor completely 3xy - 3x – 2y + 2

IgorLugansk [536]

Answer:

Step-by-step explanation:

$3xy-3x-2y+2\\(y-1)(3x-2)\\Check\\(y-1)(3x-2)\\Simplify\ and\ we\ get\ our\ question\\(y)(3x)+(y)(-2)+(-1)(3x)+(-1)(-2)\\3xy-2y-3x+2$

珠ɪᴢᴜᴍɪᴿᴬᴳᴱ

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2 years ago

What is the value of x when 6x-20+4x+20

const2013 [10]

Answer:

6x+4x-20+20

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2 years ago

How do you solve 3k+2(5k-3)=7

slamgirl [31]

3k+2(5k-3)=7

=>3k+10k-6=7

=>13k=13

=>k=13/13

Therefore, k=1

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3 years ago