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kolezko [41]
3 years ago
9

How many faces does the polyhedron have? _ faces How many vertices does the polyhedron have? _vertices How many edges does the p

olyhedron have? _edges

Mathematics
1 answer:
Sindrei [870]3 years ago
5 0

The polyhedron has:

6 Faces, 8 vertices and 12 edges <u>in</u><u> </u><u>total</u><u>.</u>

But

3 Faces, 7 vertices and 7 edges <u>are</u><u> </u><u>visible</u><u>.</u>

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In the system of equations, r and s are constants. If the system has infinitely many solutions, what is the value of rs?
exis [7]

Answer:  B) -48

Step-by-step explanation:

If the system of two linear equations a_1x+b_1y=c_1\ \&\ a_2+b_2y=c_2 has infinitely many solutions , then

\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}=k

For the given system of linear equations : rx-sy=26\\4x+3y=13

We , will have

\dfrac{r}{4}=\dfrac{-s}{3}=\dfrac{26}{13}=2\\\\\Rightarrow\ r= 4\times2=8\ \ \&\ \ s=2\times-3=-6

The value of rs=(8)\times-6=-48

Hence, the value of rs is -48.

Thus , the correct option is B) -48.

6 0
3 years ago
Which are the like terms in 5x3 + 3x2 – x + x3?
Elza [17]
<span>5x3 and x3
hope this helps

</span>
4 0
4 years ago
3. At a local restaurant, the health inspector visits every 7 days, and the fire inspector visits every 12 days. (a) Make a tabl
tangare [24]
(a)______________________
             |   1   |   2   |   3   |   4   |
-------------------------------------------
Health   |   7   |  14  |  21  |  28  |
Fire       |  12  |  24  |  36  |  48  |
------------------------------------------
(b) In 84 days, both inspectors will visit on the same day, because the LCM (least common multiple) of 7 and 12 is 84
8 0
3 years ago
Which of the following are true statements about a 30-60-90 triangle?<br> Lan
yulyashka [42]

Answer:

C and F

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please please do these please help another human being.
GREYUIT [131]

Answer:

2. 1

Step-by-step explanation:

f(0) = 2(0) + 1

To solve these types of equations you just put the number where the variables are.

6 0
3 years ago
Read 2 more answers
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