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3 years ago

How many cubes are in rectangular prism

Mathematics

2 answers:

Alina [70]3 years ago

8 0

Answer:

5 cubes by 2 cubes

Step-by-step explanation:

Svet_ta [14]3 years ago

5 0

Answer:

Finding Volume of Prisms Using Unit Cubes

These cubes make up a rectangular prism. The cubes represent the volume of the prism. This prism is five cubes by two cubes by one cube. In other words, it is five cubes long, by two cubes high by one cube wide.

Step-by-step explanation:

hope this helps

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Please help me with these questions and show how u got them, i will mark you brainliest !

lianna [129]

Answer: 1) 25b 2) ac 3)ba

1) Since b is unknown, your answer will be 25b

2) Since both variables, a and c, are unknown, your answer will be ac

3) Since both are unknown here, it will be ba!

4 0

2 years ago

Only do 7. iii<br>I will mark you as brainliest.. I don't have time please fasttt

Sophie [7]

Answer:

Check my explanation

Step-by-step explanation:

(i) the area of the floor is 30m² (6m · 5m)

(ii) the perimeter of the floor is 22m (6m + 5m + 6m + 5m)

(iii) the area of the walls is:

24m² (for the 6m by 4m walls)

20m² (for the 5m by 4m walls)

88m² in total total

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3 years ago

Solve the following ODE's: c) y* - 9y' + 18y = t^2

Nastasia [14]

Answer:

y = $C_1e^{3t}+C_2e^{6t}$ + $\dfrac{1}{18}(t^2+\frac{2t}{6} + \frac{2}{36}+\frac{2t}{3}+\frac{2}{18}+\frac{2}{9})$

Step-by-step explanation:

y''- 9 y' + 18 y = t²

solution of ordinary differential equation

using characteristics equation

m² - 9 m + 18 = 0

m² - 3 m - 6 m+ 18 = 0

(m-3)(m-6) = 0

m = 3,6

C.F. = $C_1e^{3t}+C_2e^{6t}$

now calculating P.I.

$P.I. = \frac{t^2}{D^2 - 9D +18}$

$P.I. = \dfrac{t^2}{(D-3)(D-6)}\\P.I. =\dfrac{1}{18}(1-\frac{D}{3})^{-1}(1-\frac{D}{6})^{-1}(t^2)\\P.I. =\dfrac{1}{18}(1-\frac{D}{3})^{-1}(1+\frac{D}{6}+\frac{D^2}{36}+....)(t^2)\\P.I. =\dfrac{1}{18}(1-\frac{D}{3})^{-1}(t^2+\frac{2t}{6} + \frac{2}{36})\\P.I. =\dfrac{1}{18}(1+\frac{D}{3}+\frac{D^2}{9}+....)(t^2+\frac{2t}{6} + \frac{2}{36})\\P.I. =\dfrac{1}{18}(t^2+\frac{2t}{6} + \frac{2}{36}+\frac{2t}{3}+\frac{2}{18}+\frac{2}{9})$

hence the complete solution

y = C.F. + P.I.

y = $C_1e^{3t}+C_2e^{6t}$ + $\dfrac{1}{18}(t^2+\frac{2t}{6} + \frac{2}{36}+\frac{2t}{3}+\frac{2}{18}+\frac{2}{9})$

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2 years ago

16. John bought a used truck for $4,500. He made an agreement with the dealer to put $1,500 down and make payments of $350 for t

nikklg [1K]

10*350= 3500
Total amount paid- 1500+3500= 5000
So an amount of $5000 was paid to cover the cost of $4500 within the 10 month period.

So you answer is A. 33%

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3 years ago

Read 2 more answers

A carpenter has a piece of wood that is 10 yards long anda piece that is 5 feet long. how many feet of wood does the carpenter h

stellarik [79]

A piece of wood 10 yards long

and

A piece of wood 5 feet long

He has two pieces of wood. How much does he have in all?

5+10 = 15

15 feet of wood

6 0

2 years ago