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.