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nekit [7.7K]
3 years ago
5

Do the ratios 20:8 and 7:3 form a proportion?

Mathematics
2 answers:
zimovet [89]3 years ago
6 0

Answer:

No, the ratios 20:8 and 7:3 do not form a proportion.

Step-by-step explanation:

If it is 20:8 to 7:2.8 then it would form a proportion.

Hope this helps.

antiseptic1488 [7]3 years ago
4 0
No this does not form a proportion
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If UW = 9x – 9, what is UW in units?
Tju [1.3M]
I will answer this question to the best of my ability, because you have not provided a value of x to plug in.


UW is always equal to 9x-9 or 9(x-1) whenever x is a real number.  By plugging in x, we can get the value.  For example, if x was 4, we plug in x, giving us 9*4-9=36-9=27 units or 9(4-1)=9(3)=27 units
Don't forget to include units when you complete your answer!

Hope this helps!  I did as much as I could!
5 0
4 years ago
What is the surface area of the right cone below?<br>​
olga55 [171]

Answer:

54 is anwer.

please mark me brainliest and follow me my friend.

because 54 is correct answer.

4 0
3 years ago
If i=√-1 , what is i^2 equal to ?
Alja [10]

Answer:

-1

Step-by-step explanation:

If i = √-1, then i^2 = -1.

5 0
3 years ago
How would you solve this? help.
Eddi Din [679]

Answer:

<em>Center: (3,3)</em>

<em>Radius: </em>2\sqrt{5}<em />

Step-by-step explanation:

<u>Midpoint and Distance Between two Points</u>

Given two points A(x1,y1) and B(x2,y2), the midpoint M(xm,ym) between A and B has the following coordinates:

\displaystyle x_m=\frac{x_1+x_2}{2}

\displaystyle y_m=\frac{y_1+y_2}{2}

The distance between both points is given by:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Point (5,7) is the center of circle A, and point (1,-1) is the center of the circle B. Given both points belong to circle C, the center of C must be the midpoint from A to B:

\displaystyle x_m=\frac{5+1}{2}=\frac{6}{2}=3

\displaystyle y_m=\frac{7-1}{2}=\frac{6}{2}=3

Center of circle C: (3,3)

The radius of C is half the distance between A and B:

d=\sqrt{(1-5)^2+(-1-7)^2}

d=\sqrt{16+64}=\sqrt{80}=\sqrt{16*5}=4\sqrt{5}

The radius of C is d/2:

r =4\sqrt{5}/2 = 2\sqrt{5}

Center: (3,3)

Radius: 2\sqrt{5}

8 0
3 years ago
-0.26<br> 0.5<br> Select one:<br> -0.052<br> 0.052<br> -0.52<br> -0.51
erik [133]

Answer:

-0.51

Step-by-step explanation:

4 0
3 years ago
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