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stellarik [79]
3 years ago
14

(4+5)²-(-2)²×(13+7) ayúdenme es para hoy​

Mathematics
2 answers:
ser-zykov [4K]3 years ago
8 0
(9)^2 - (-4) • (20)
81 - (-80)
161
ExtremeBDS [4]3 years ago
7 0
The answer is 1 i think
You might be interested in
Help me with 24,26,28, and 30 please.
Novay_Z [31]
24)
The number 1/10 can be expressed as a decimal by dividing the top number by the bottom.
1/10=0.1
0.8>0.1
0.8>1/10

26)
The number 3/5 can also be expressed as a decimal, using the method I described for 24.
3/5=0.6
0.6>0.35
3/5>0.35

28)
The number 2/5 can also be expressed as a decimal.
2/5=0.4
0.4>0.3
2/5>0.3

30)
The number 1/6 cannot be expressed as a decimal. So, express 0.2 as a fraction.
0.2=2/10=1/5
1/5=6/30
1/6=5/30
6/30>5/30
0.2>1/6

Hope this helps!
8 0
3 years ago
What number must be added to both sides of this equation in order to "complete the square"?
Arte-miy333 [17]

Answer:

D 9 is the correct answer

4 0
3 years ago
What's the additive inverse of 0.75.
Sophie [7]

Answer:

additive \: inverse =  - 0.75

6 0
3 years ago
Shelly a 4.2 oz of Trail Mix Marsh Marshall ate 4.25 oz of Trail Mix how much more trail mix did Marshall eat
dimulka [17.4K]

With just some easy subtraction we can see that he ate 0.05 more trail mix than shelly. please mark brainliesy if correct, hope this helps!

8 0
3 years ago
Read 2 more answers
Simplify.<br> 4/x^2-35 - 1/x+5
Oksana_A [137]
If I understand your question well, I suppose you mean \frac{4}{ x^{2} -35} -  \frac{1}{x+5}
\frac{4}{ x^{2} -35} - \frac{1}{x+5} =  \frac{4}{(x+5)(x-7)}- \frac{1}{x+5} \\ = \frac{1}{x+5}( \frac{4}{x-7}-1) \\ = \frac{1}{x+5}( \frac{4}{x-7}- \frac{x-7}{x-7}) \\ = \frac{1}{x+5}( \frac{4-x+7}{x-7}) \\ = \frac{1}{x+5}( \frac{11-x}{x-7}) \\ = \frac{11-x}{ x^{2} -35}
6 0
3 years ago
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