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Liono4ka [1.6K]
3 years ago
14

What's does log mean?

Mathematics
1 answer:
Rashid [163]3 years ago
4 0

Answer:

Logarithm

Step-by-step explanation:

Log is short for logarithm. Related terms include natural log or ln. There are many properties and equations that utilize the two and how to use them together to simplify and solve equations.

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What's the ANSWER to -5x+y+9-4x-8y+11
Elis [28]

Step-by-step explanation:

-5x+y+9-4x-8y+11

-9x-7y+20

5 0
3 years ago
37% of what number is 72?
tatiyna
The answer is 194.59

(72 x 100) / 37 = 194.59
4 0
3 years ago
Read 2 more answers
on two investments totalling 9000 Lydia lost 4% and earned 5%. if her net receipts were 351$ how much was each investment
mario62 [17]
She invested.. .say "a" amount on the 4% and "b" amount on the 5% one

now, she lost the 4% one or "a", so... that'd be a negative amount

now, we know both investments added together add up to 9000

and we also know the "net" receipts for the yield was 351, that simply means that whatever "b" and "a" yielded, ended up as 351

so.. what's 4% of a? well (4/100) * a or 0.04a
what's 5% of b? well (5/100) * b or 0.05b

since "a" was a loss(negative), then we know the net yield is =>  b - a = 351

thus     \bf \begin{cases}
b+a=9000\implies \boxed{a}=9000-b\\\\
0.05b - 0.04a = 351\\
----------\\
0.05b - 0.04\left(\boxed{ 9000-b }\right) = 351
\end{cases}

solve for "b", to see how much was invested at 5%

what about a?  well, a = 9000 - b
5 0
3 years ago
Annalise withdraws $22.50 each day from her account for a week. How can you represent the change in her account after 2 weeks?
nadya68 [22]

Answer: She would have $315

Because there are 7 days in a week so you multiply 22.50 by 7 and you get 157.5, Then because she does it for two weeks you multiply 157.5 by 2 and you get 315

Hope this helps

8 0
3 years ago
Read 2 more answers
Tìm căn bậc hai của số phức z=1+i√3
Anni [7]

Write <em>z</em> in polar form:

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Taking the square root gives two possible complex numbers,

√<em>z</em> = √2 exp(<em>i</em> (<em>π</em>/3 + 2<em>kπ</em>)/2)

with <em>k</em> = 0 and <em>k</em> = 1, so that

√<em>z</em> = √2 exp(<em>i</em> <em>π</em>/6) = √(3/2) + √(1/2) <em>i</em>

and

√<em>z</em> = √2 exp(<em>i</em> 7<em>π</em>/6) = -√(3/2) - √(1/2) <em>i</em>

5 0
3 years ago
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