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Greeley [361]
3 years ago
8

Write 21/25 as a percent. Please explain how to do it. Thanks!

Mathematics
2 answers:
Wewaii [24]3 years ago
6 0
0.84 is the answer u have to divide to get it I hope this helps
BabaBlast [244]3 years ago
3 0
21/25 as a percent. Well, I would change the 25 so its 100. But don't forget to also multiply the top and bottom by the same number. 
So multiply 21/25 by 4/4= 84/100. Since a percentage is out of a whole, you just take 84 and move it by itself: 84%
So 21/25 as a percent I think is 84%
Hope this helps! :D
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Elena drops her pencil in her cup and notices that it just fits diagonally. the pencil is 17cm long and the cup is 15cm tall. wh
Vadim26 [7]

Hence the answer is 480ml

Step-by-step explanation:

Given Elena wonders how much water it will take to fill her cup. She drops her pencil in the cup and notice it just fit diagonally. The pencil is 17cm long (hypotenes) and the cup is 15cm tall.

To find how much water it can hold

SOLUTION

s

\sqrt{x {} ^{ 2}  + x {}^{2}  + 15 {}^{2}  = 17 }

2x {}^{2}  = 64

x {}^{2}  = 32

x = 5.66

therefore volume of the cup

5.66 \times 5.66 \times 15cm|

480cm³= 480ml

4 0
2 years ago
What is the peremeter of this polygon? (With picture)
lyudmila [28]
Check the picture below.

so.. simply, use the distance formula, to get their length an add them up, and that's the perimeter of the polygon.


\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ -1}}\quad ,&{{ 2}})\quad 
%  (c,d)
&({{ 2}}\quad ,&{{ 4}})\\
&({{ 2}}\quad ,&{{ 4}})\quad 
%  (c,d)
&({{ 3}}\quad ,&{{ -2}})\\
&({{ 3}}\quad ,&{{ -2}})\quad 
%  (c,d)
&({{ -2}}\quad ,&{{ -3}})\\
&({{ -2}}\quad ,&{{ -3}})\quad 
%  (c,d)
&({{ -1}}\quad ,&{{ 2}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}

\bf -------------------------------\\\\
d=\sqrt{[2-(-1)]^2+(4-2)^2}\implies d=\sqrt{(2+1)^2+(2)^2}
\\\\\\
d=\sqrt{3^2+2^2}\implies \boxed{d=\sqrt{13}}\\\\
-------------------------------\\\\
d=\sqrt{(3-2)^2+(-2-4)^2}\implies d=\sqrt{1^2+(-6)^2}\implies \boxed{d=\sqrt{37}}\\\\
-------------------------------\\\\
d=\sqrt{(-2-3)^2+[-3-(-2)]^2}\implies d=\sqrt{(-5)^2+(-3+2)^2}
\\\\\\
d=\sqrt{(-5)^2+(-1)^2}\implies \boxed{d=\sqrt{26}}

\\\\
-------------------------------\\\\
d=\sqrt{[-1-(-2)]^2+[2-(-3)]^2}\implies d=\sqrt{(-1+2)^2+(2+3)^2}
\\\\\\
d=\sqrt{(1)^2+(5)^2}\implies \boxed{d=\sqrt{26}}

so, those are their lengths, sum them all up, that's the polygon's perimeter.

4 0
4 years ago
Can you please help me out on this​
Aloiza [94]

Answer:

B)

Step-by-step explanation:

because 45= 1(45)

the rest don't show it on the table

3 0
3 years ago
Read 2 more answers
The measure of angle H in degrees is?
ruslelena [56]

Answer:

m ∠H = 106°

Step-by-step explanation:

Sum of the angles in a triangle = 180

41° + 33°  + ∠H = 180°

  74° + m ∠H = 180°

       m ∠H = 106°

8 0
3 years ago
The horizontal distance of E is 9 units to the east of point F. Determine the coordinates of F if the coordinates of E are (3,8)
Vsevolod [243]

Answer:

(-6,8)

Step-by-step explanation:

By reading the question you can determine that point E is to the east, or the right, of point F by 9 units. This ultimately means you must subtract 9 units on the horizontal (x-axis) in order to get to point F.

6 0
3 years ago
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