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ioda
3 years ago
5

Which of the following is NOT a rational expression?

Mathematics
1 answer:
galben [10]3 years ago
7 0

the answer is the last one

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find the volume of metal required to make a closed box of thickness 1 cm with external measurements 12 cm × 7 cm × 10​
noname [10]

Answer:

The volume of the metal is:

V_{t}=548\: cm^{3}

Step-by-step explanation:

First, let's find the volume of the front face of the square:

V_{1}=12*7*1=84\: cm^{3}

The back face is the same, so we have:  

V_{2}=84\: cm^{3}

The volume of the side faces will be:

V_{3}=7*10*1=70\: cm^{3}

V_{4}=70\: cm^{3}

And finally, the volume of the top and bottom side faces of the box will be:

V_{5}=12*10*1=120\: cm^{3}

V_{6}=120\: cm^{3}

The total volume of the metal will be:

V_{t}=V_{1}+V_{2}+V_{3}+V_{4}+V_{5}+V_{6}

V_{t}=2(84)+2(70)+2(120)

V_{t}=548\: cm^{3}

I hope it helps you!

7 0
3 years ago
Pete Jones is adding a fireplace to his home in Boston at a cost of $3,350. Contractors tell him adding the fireplace will retur
vichka [17]
$3,350 x 38% = $127,300 / 100% = $1,273 < 38% return so it would increase $3,350 + $1,273 = $4,623 value increase
8 0
4 years ago
On the beach, a cable is attached to the pier. The line formed by the cable has a slope of 3/5. Is the triangle formed by the pi
otez555 [7]

Answer:

I'm so sorry

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The area of a parallelogram is six square units. Both the height and the length of the base are whole numbers. What are the poss
nexus9112 [7]

well, the area of a parallelogram is simply A = bh.

we know that "b" and "h" are whole numbers or namely integers, and we know the area is 6, doing a quick prime factoring of 6 we simply get

6 = 2 * 3

2 and 3 are both prime, in how many ways can we arrange them? just 2 and 3 or 3 and 2, so those are the only possible values for "b" and "h".

4 0
3 years ago
Francis earned the following scores on his math quizzes: 86, 84, 90. Jillian earned the following scores on her math quizzes: 84
vitfil [10]

Answer:

3

(

2

+

5

)

=

−

7

(

2

−

1

0

)

+

5

{\color{#c92786}{3(2x+5)}}=-7(2x-10)+5

3(2x+5)=−7(2x−10)+5

6

+

1

5

=

−

7

(

2

−

1

0

)

+

5

Step-by-step explanation:

7 0
3 years ago
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