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3 years ago

13

L Pretest: Unit 3

2 answers:

tamaranim1 [39]3 years ago

7 0

B

Explanation:
4x-3-(x+4)
4x-3-x-4
3x-7

Alona [7]3 years ago

3 0

B, if you would just work it out

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A cube had a volume of 1/512 cubic meter. What is the length of each side of the cube using the formula "volume=Length×Width×Hig

MrRa [10]

Answer:

The length of each side of the cube is $\frac{1}{8}\ m$

Step-by-step explanation:

we know that

The volume of a cube is equal to

$V=LWH$

but remember that in a cube

Length, width and height have the same value

so

Let

b-----> the length side of the cube

$L=W=H=b$

substitute in the formula

$V=(b)(b)(b)=b^{3}$

In this problem we have

$V=\frac{1}{512}\ m^{3}$

substitute and solve for b

$b^{3}=\frac{1}{512}$

$b=\sqrt[3]{\frac{1}{512}}\\ \\b=\frac{1}{8}\ m$

therefore

The length of each side of the cube is $\frac{1}{8}\ m$

4 0

4 years ago

Frank also has an eraser. It has a mass of 3g, and volume of 1cm3.what is it’s density

sergeinik [125]

Here

mass = 3g

volume = 1 cm³

we know

density = mass/ volume

3/1 = 3g/cm³

8 0

3 years ago

I need help with this

hoa [83]

Answer:

B would be my best answer, not sure tho

8 0

2 years ago

I need help with this did I get this right

Roman55 [17]

I think the answer is C

6 0

3 years ago

The regular price of a camera is $500. The camera is on sale for 25% off the regular price. What is the sale price of the camera

Bond [772]

Answer:

375

Step-by-step explanation:

500-125(25% of 500)=375

6 0

3 years ago