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alina1380 [7]
3 years ago
5

Helpp pleasee! 2/9!!!!!

Mathematics
1 answer:
liubo4ka [24]3 years ago
3 0

Answer:

Happy birthday invite gar ta

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What is the exact value of the expression the square root of 20. + the square root of 24. - the square root 54.? simplify if pos
aksik [14]
\sqrt{20} =  \sqrt{4}  \sqrt{5}  = 2 \sqrt{5}
\sqrt{24} =  \sqrt{4} \sqrt{6} = 2 \sqrt{6}
\sqrt{54} =  \sqrt{9} \sqrt{6} = 3 \sqrt{6}

Because you can only add and subtract radicals with the same radicand,
you get 2\sqrt{5} -  \sqrt{6}
that is the simplified answer but if you want it in decimals, 2.022 is what you get.
4 0
3 years ago
Read 2 more answers
I’m the parallelogram above, what is the value of x+y <br><br> Help please
olga2289 [7]

Answer:

248°

Step-by-step explanation:

y = 180°- 56°

  = 124°

x = 124° because opposite angles of a parallelogram are equal

x + y = 124° + 124°

        = 248°

6 0
2 years ago
Read 2 more answers
Please can somebody find the gradient and the coordinates of the y-intercept for the graph:
-Dominant- [34]
The equation is already is slope intercept form where you can easily point out the gradient, or the slope, and the y intercept.
y=mx+b where m is the gradient, and b is the y intercept. 
Since there is no m, the gradient is 1.
The y intercept had x=0 and y=b
b in this case is 6 
the y intercept= (0,6)
8 0
3 years ago
Solve for x<br> 2800 = 400.210x
dusya [7]

Answer:

2800=400.21x

x = 6.996327

3 0
3 years ago
1. Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 24. How old is each
Andre45 [30]

Answer:

a) Let Kim's age be k, then Kim's sister's age is k/2

k+\frac{k}{2}=24

b) k+\frac{k}{2}=24

1\frac{1}{2}k=24

k=16

\frac{k}{2}=8

Kim's age is 16 while her sister's age is 8.

5 0
3 years ago
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