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raketka [301]
4 years ago
10

Help i will rate you brainliest please help

Mathematics
1 answer:
Lena [83]4 years ago
7 0

For part A, there are 4 equal lengths put together and the sum of them is 36. So dividing 36/4 gives us 9.

So the length of each edge is <u>9 cm</u>!

For part B, finding surface area means the total area of the cube on its six faces.

So for one face of the cube, the area is

9 × 9 = 81 cm^2

There are 6 faces so we multiply 81 by 6 and get 486 cm^2.

Hope this helps!

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Which of these expressions is equivalent to 8p3 + 27?
kipiarov [429]

Answer:

Hey there!

(2p - 3)(4p2 + 6p + 9) is equal to 8p^3+27. This is just a sum of cubes!

Let me know if this helps :)

3 0
3 years ago
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GIVING BRAINLIEST easy question
garri49 [273]
Taking the point directly under the center of the bridge as the origin,
x = 20t, y = 15t, z = 10
let s be thedistance between them at time t,
s^2 = (20t)^2 + (15t)^2 + 10^2 = 625t^2 + 100
2s ds/dt = 1250t
ds/dt = 625t/s

when t = 3, s = √(625*9+100) = 75.6637
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3 years ago
WILL GIVE BRAINLIEST PLEASE HELP!!!
laiz [17]

Answer:

its the top right answer choice

you'd simply just need to subtract 80 from 210 since its 10 per visit, and after 8 visits well its self explanatory

Step-by-step explanation:

its the top right answer choice

you'd simply just need to subtract 80 from 210 since its 10 per visit, and after 8 visits well its self explanatory

5 0
3 years ago
Find the area of the rectangle below by multiplying its length and width.
wariber [46]

Hello!

When multiply binomials together, we should use the FOIL method.

The FOIL method is an acronym for First, Outer, Inner, and Last.

First, let's set up the expression.

(7x - 1)(3x - 2)

Now, we can multiply in accordance with the FOIL method.

First: 7x · 3x = 21x²

Outer: 7x · -2 = -14x

Inner: -1 · 3x = -3x

Last: -1 · -2 = 2

Now, we simplify the inner terms.

21x² - 14x - 3x + 2

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Therefore, the area of the rectangle is 21x² - 17x + 2.

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|x-4|=2 solve the absolute value equation ​
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Answer:

x=6 or x=2

Step-by-step explanation:

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