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3 years ago

Help me pls on this question k12 6th grade

Mathematics

2 answers:

Maksim231197 [3]3 years ago

8 0

Answer:

-21.5cm /\3

Step-by-step explanation:

To find the volume of a rectangular prism, you need to multiply length x width x height, which is 4 1/2 x 4 1/2 x 6 which equals 121 1/2. Then you subtract 121 1/2 by 143 which equals -21 1/2

zysi [14]3 years ago

4 0

Answer:

21.5cm^3

Step-by-step explanation:

find area of rectangular prism

4.5*4.5*6= 121.5

subtract from storage container

143-121.5=21.5cm^3

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Not sure how to approach this one, any help would be appreciated!

iren2701 [21]

The continuity of $f'$ and its limiting behavior guarantees that $f'$ is Riemann integrable, so you can write

$\displaystyle\int_0^\infty f'(x)\,\mathrm dx=uv\bigg|_{x=0}^{x\to\infty}-\int_0^\infty v\,\mathrm du$

where $u=1\implies\mathrm du=0\,\mathrm dx$ and $\mathrm dv=f'(x)\,\mathrm dx\implies v=f(x)$ , so that

$\displaystyle\int_0^\infty f'(x)\,\mathrm dx=f(x)\bigg|_{x=0}^{x\to\infty}=\lim_{x\to\infty}f(x)-f(0)=-f(0)$

8 0

4 years ago

What is the reciprocal of 0.025 (not -0.025)

DochEvi [55]

Answer:

1000/25 or 40

Step-by-step explanation:

~ A reciprocal is the fraction's reverse

For example 2/3=3/2

.025 is also 25/1000

The reverse of 25/1000 is 1000/25

Simplified into 40 wholes

6 0

3 years ago

Read 2 more answers

The number 75 can be written as the sum of the squares of 3 different positive integers. what is the sum of these 3 integers?

muminat

The square numbers smaller than 75 are 1, 4, 9, 16, 25, 36, 49, 64
1+49+25=75 seems to be the only set possible.
1+7+5=13
the answer is 13

8 0

3 years ago

Please help me do question 21, 22 and 23. I am in 6th grade.

Pachacha [2.7K]

Question 21: 24 minutes

$\frac{3}{\frac{3}{2} } = \frac{x}{12}$

x = $(\frac{3}{\frac{3}{2} })(12)$

x = 24

Question 22: 20 centimeters

x = one side of the square

x² = 25

x = 5

4x = perimeter

4(5) = perimeter

20 = perimeter

Question 23: 17 sides

Hexagon = 6 sides

Octagon = 8 sides

Triangle = 3 sides

Total amount of sides = 6 + 8 + 3

Total amount of sides = 17

6 0

3 years ago

Why are the flat surfaces on a rectangular prism called faces

Amanda [17]

Because they act like a face that provides recognition to the shape.

5 0

3 years ago