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Ksju [112]
2 years ago
10

Which of the two-dimensional cross sections listed below could be created by cutting a cube with a plane?

Mathematics
1 answer:
Anna71 [15]2 years ago
6 0
Rectangle and square
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CAN U GUYS PELASE ANSWER THE SIMULTANEOUS EQUATION QUESTION QUESTIONS ASAP. THIS IS EXTREMELY URGENT. Solve it by using the subs
prisoha [69]

Answer:

a ) y = 1 and x = -1

d) y = 5 and x = -1/2

Step-by-step explanation:

<h2><u>Substitution method</u></h2><h2><u>Question a</u></h2>

y = x+ 2

y = 2x + 3

<em>we can make the first formula in terms of x , so we can place in into the second formula</em>

y = x + 2

x = y -  2

now put y - 2 where x is in the second equation

y = 2x + 3

y = 2(y - 2) + 3

y = 2y - 4 +3

now solve

4 - 3 = 2y -y

y = 1

since y = 1 we can find what x is by putting into the first formula

y = x +2

x = y - 2

x = (1) -2

x = -1

<h3><u>hence y = 1 and x = -1 </u></h3><h3><u /></h3><h2><u>Question d</u></h2>

y = 2x + 6

y = 4 - 2x

<em>we can make the first formula in terms of x , so we can place in into the second formula</em>

y = 2x + 6

y - 6 = 2x

x = (y-6)/ 2

now place (y-6)/2 where x is in the second formula

y = 4 -2x

y = 4 - 2 (\frac{y - 6}{2})

now solve

the multiplication by 2 and division by 2 are cancelled out

hence making the simplified equation as:

y = 4 - y + 6

2y = 4 + 6

2y = 10

y = 5

now place this into the first equation

y = 2x + 6

y - 6 = 2x

x = (y-6)/ 2

x = (5-6)/2

x = -1/2

<h3><u>hence y = 5 and x = -1/2</u></h3>

6 0
3 years ago
Helpppppppppppppppppppppppp
pogonyaev

Answer:

I'm not sure about "11" but  12. is "by the definition of right angles", and 16. is "by the SAS(side angle side) congruency theorem"

3 0
3 years ago
What is the domain of the relation graphed below?
swat32
Since the only places where an x-ordinate exist are the closed circles, the domain will simply be:

D: { -5, -4, -3, 1, 2, 5 }
4 0
3 years ago
Read 2 more answers
What is 32×5/6 in simplest form
Rina8888 [55]
32/1x5/6=160/6
6 goes into 160 26 times, with an extra 4.
Your answer is 26 4/6, or 26 2/3.
Hope this helps :-)
7 0
3 years ago
Read 2 more answers
Can anyone pls help me fill in the blanks?
Oliga [24]

Answer:

irrational number

Step-by-step explanation:

It is a non-recurring continuous decimal number

7 0
3 years ago
Read 2 more answers
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