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3 years ago

Help me pleasee I need to turn it in tonightt

Mathematics

2 answers:

AveGali [126]3 years ago

7 0

Student 1 and student 3 are equivalent

Talja [164]3 years ago

3 0

Answer:

A. Students 1 and 3

Step-by-step explanation:

Student 3's equation is -5r + 3s - 1

Student 1's equation is -(5r - 3s + 1)

We distribute the negative like this: -5r + 3s - 1, which is the same as student 1.

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What's y / 4 equals -3

katovenus [111]

Y/4 = -3

Multiply both sides by 4

Y = -12

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3 years ago

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Combine the like terms to create an equivalent expression.<br> 4n+6+n-2

NemiM [27]

5n+4 seems to be the answer

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Virty [35]

Answer:

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2 years ago

Can anyone help me solve this?

12345 [234]

Step-by-step explanation:

a triangle,=180

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3 years ago

An object in the shape of a rectangular prism has a length of 5 inches, a width of 3 inches, and a height of 2 inches. The objec

belka [17]

Answer:

$4,080grams$

Step-by-step explanation:

the formula for density is:

$d=\frac{m}{V}$

where d is density, m is mass, and V is volume.

solving for m in the last equation:

$m=d*V$

so if we find the volume and multiply it by the density $d=8.3gr/cm^3$ we will get the mass of the object.

The volume of a rectangular prism is given by:

$V=l*w*h$

where $l$ is length, $w$ is width and $h$ is height:

$l=5in\\w=3in\\h=2in$

we substitute to find the volume:

$V=5in*3in*2in\\V=30in^3$

since the density has units of $cm^3$ we need the volume also in units of $cm^3$ , so we make the conversion using:

$1in^3=16.3871cm^3$

multiplying by 30:

$30in^3=491.612cm^3$

and now we find the mass with the equation:

$m=d*V$

substituting d and V:

$m=(8.3gr/cm^3)(491.612cm^2)\\m=4,080.36gr$

the nearest gram is: $4,080grams$

8 0

3 years ago