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7nadin3 [17]
3 years ago
13

What's -18÷(1-4+-2-4) explain pls need help​

Mathematics
1 answer:
Mrac [35]3 years ago
4 0

Answer:

the answer is 2.

Step-by-step explanation:

i dont know how to explain sorry

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The basement of a large department store features discounted merchandise. Their policy is to reduce the previous month's price o
Marizza181 [45]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
 <span>P(t) = Po(1 - r)^t 

P(t) = price after t months --> S 
Po = initial price -- P 
r = rate as a decimal 

S = P(.9)^4 
-> = 100(.9)^4 
-> = 65.61 

(100 - 65.61)/100 
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5 0
3 years ago
If \\(z_1=3+2i\\) and \\(z_2=4+3i\\) and are complex numbers, find \\(z_1z_2\\)
Mice21 [21]

Answer:

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3 0
3 years ago
78 is what percent of 110
irinina [24]

Answer: 70.909090909091%

Step-by-step explanation: Reading through the problem we have <em>78 is</em>, that's 78 equals, <em>what percent</em>, x/100, <em>of 110</em>, times 110.

It's important to understand that <em>percent</em> means over 100 so what percent would simply mean <em>x/100</em> or any variable but I will be using x.

So we have the equation 78 = \frac{x}{100} *110

So cross canceling the 110 and 100 to 11 and 10, we have 78 = \frac{11x}{10}

Multiply both sides by 10 to get rid

of the fraction and we have 780 = 11x.

Now divide both sides by 11 and 70.909090909091 = x.

So, 78 is 70.909090909091% of 110.

Work is attached in the image provided.

8 0
3 years ago
2. Factorise: a - b - a + b2.square ​
marshall27 [118]
A - a removes both a’s from equation, then you’re left with b + bsquared, since they are unknown values you cannot combine them, even if it is the same letter, you can only add and subtract unknown values with their same letters together.
7 0
2 years ago
the temperature of an oven went through 330 degrees to 390 degrees what is the percentage increase in temperature
valentina_108 [34]
All you do is divide. 
330/390= 0.846
round it: 0.85 
Answer is about 85%
5 0
3 years ago
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