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3 years ago

A rectangular prism that’s sides are all the same size is a cube. True or false?

2 answers:

7 0

True.

If you think about a square, all four sides are the same length
A cube is a 3d square, therefore all of its sides are the same

Hope I helped chu

matrenka [14]3 years ago

4 0

This is true. next one pls

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Slav-nsk [51]

Let k be the scale factor relating two similar prisms $P_{1}$ and $P_{2}$ , such that for corresponding parts of prisms $P_{1}$ and $P_{2}$ (for heights, in particular) we have $k= \frac{height\ of \ P_{1} }{height \ of\ P_{2} }$ . In our case $k= \frac{4}{10} = \frac{2}{5}$ .
For surfaces area we have $\frac{Surface \ area \ of \ P_{1} }{Surface \ area \ of \ P_{2}} = k^{2} =( \frac{2}{5} )^{2}= \frac{4}{25}$ .
So, the right answer is 4:25 (choice B)

4 0

3 years ago

Write down the 3rd term in the sequence given by: T(n) = n2 + n

Sergio [31]

The solution for the problem is:
I will first get the first five terms so that I could easily locate the third term of this problem:So, substituting the values:
T(1) = 1^2 = 1T(2) = 2^2 = 4T(3) = 3^2 = 9T(4) = 4^2 = 16T(5) = 5^2 =25
So the third terms is T(3) = 3^2 = 9

8 0

3 years ago

2(x - 2.6) + 2.91 = 7.71

Gennadij [26K]

I'll show a step-by-step. I'm not in the mood to explain right now lol.

2(x-2.6)+2.91=7.71

2x-5.2+2.91=7.71

+5.20 +5.20

2x+2.91=12.91

-2.91 -2.91

2x=10

/2 /2

x=5

---

hope it helps

sorry if it doesn't

3 0

3 years ago

In a survey of students , every student studies at least one of the three subjects Maths English and Science . The number of stu

Mandarinka [93]

Answer:

80x2=160 20x3=60 160+60=220

Step-by-step explanation:

5 0

2 years ago

WILL GIVE BRAINLIESTTTTTT

Andreyy89

Answer:that is a triangil

Step-by-step explanation:

8 0

2 years ago