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Nata [24]
3 years ago
15

Simplify (2/5+3/7)^2. show your work

Mathematics
2 answers:
weqwewe [10]3 years ago
8 0
(2√5+3√7)²=(2√5)²+2*(2√5)*(3√7)+(3√7)²=4*5+12√35+9*7=20+12√35+63=
=83+12√35..
Misha Larkins [42]3 years ago
5 0
Pemdas Is Importent For This. Okay, 2*2*2*2*2 Is 32.  3*3*3*3*3*3*3 Is 2187. Now, We Add. 32+2187 Is 2219. There You Go. :)
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Which congruency theorem can be used to prove<br> that ABD =DCA?
Dimas [21]

Answer:

The answer is "SAS".

Step-by-step explanation:

In this question we assume two angle is given that are:

\ Two \ triangles \angle ABD \ and \angleDCA \\\\\ In \ this \ on \ angle \ is \ common \ that \ is, \\\\  AD=AD \\\\AB= CD \\\\\angle A \ is \ equal \ =  \angle A \ (\ which \ is \ given)\\\\

That's why SAS rule is correct.

6 0
3 years ago
Valerie is making identical quilts for herself and her sister. For each quilt she buys 5 yards of solid fabric and w yards of pr
Nadusha1986 [10]
Valerie bought 18yrds of fabric. If she used 9yrds of fabric on her quilt, she will use another 9yrds on her sister's. The total is 18yrds.
8 0
2 years ago
6,859 in standard form
sasho [114]

thats 6859, there is nothing wrong with it

3 0
3 years ago
Can someone pls i will give brainliest :)
satela [25.4K]

Answer:

149 degrees

Step-by-step explanation:

<u>Higher value: </u>

114

<u>Lower value:</u>

-35

<u>Finding the difference:</u>

114 - (-35)

114 + 35

149

6 0
2 years ago
Read 2 more answers
Explain the steps necessary for solving the following equation. x^2-8x-20=0
kirza4 [7]
First factor the equation
(x-10)(x+2) = 0
Then solve for (x-10) and (x+2)
x=10
x=-2
8 0
3 years ago
Read 2 more answers
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