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lisabon 2012 [21]
2 years ago
12

If 2, x,18 and 54 are in proportion then what is the value of x.​

Mathematics
1 answer:
Anettt [7]2 years ago
7 0
I think the answer to this question is 18
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I need someone who will answer all five questions correctly. Give out 100 bonus points for who will answer all 5 correctly
KATRIN_1 [288]

Answer:

The circumference of the yellow circle is 9\pi or 28.27cm^2 approximately, the circumference of the blue circle is 6\pi or 18.85m^2 approximately, the circumference of the green circle is 80\pi or 251.33mm^2 approximately, the circumference of the red circle is 5\pi or 15.71cm^2 approximately, and the circumference of the pink circle is 7\pi or 21.99cm^2 approximately.

Step-by-step explanation:

To find the circumference of a circle, you need to multiply the diameter of the circle and multiply it by \pi. In this case, the circumferences of the yellow circle are 9\pi or approximately 28.27cm^2, the circumference of the blue circle is 6\pi or approximately 18.85m^2, the circumference of the green circle is 80\pi or approximately 251.33mm^2, the circumference of the red circle is 5\pi or approximately 15.71cm^2, and the circumference of the pink circle is 7\pi or approximately 21.99cm^2.

8 0
3 years ago
Assume that there are two pairs of congruent triangles in the diagram
pychu [463]
False Happy Thanksgiving :)
3 0
2 years ago
I need help with 33 and 34
kenny6666 [7]
EDIT: Picture

33) When adding matrices, just add the numbers that are in the same spot. In this problem we are given A and C, and we are asked to find B if A + B = C

So B = C - A

\left[\begin{array}{ccc}2&-1&-3\\1&4&-2\\\end{array}\right] - \left[\begin{array}{ccc}4&9&-2\\-3&5&7\\\end{array}\right] = \left[\begin{array}{ccc}-2&-10&-1\\4&-1&-9\\\end{array}\right]

34) When multiplying matrices, the number of columns in the first matrix needs to be the same as the number of rows in the second matrix. Then the outcome will have the same number of rows as the first matrix and same number of columns as the second matrix. In this case, the result will be a 2x2.

6 0
3 years ago
Rearrange x = 3g + 2 to make g the subject.
Kisachek [45]

Answer:

g = \frac{x-2}{3}

Step-by-step explanation:

x = 3g + 2 ( subtract 2 from both sides )

x - 2 = 3g ( divide both sides by 3 )

\frac{x-2}{3} = g

5 0
1 year ago
Read 2 more answers
Can someone please help me with this
k0ka [10]

Answer: 3x^6+x^5-x^4-6x^3+x^2+3x-1

Step-by-step explanation:

 (3x^2+x-1)(x^4-2x+1)

=3x^6-6x^3+3x^2+x^5-2x^2+x-x^4+2x-1

=3x^6+x^5-x^4-6x^3+x^2+3x-1

Hope this helps!! :)

Please let me know if you have any question

5 0
2 years ago
Read 2 more answers
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