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Eddi Din [679]
3 years ago
7

I really need the answer to number 4

Mathematics
1 answer:
Soloha48 [4]3 years ago
7 0

500 is what you already have if it grows 2.75% a month you multiply it by the month and add it to 500

500+2.75%m

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Which is the complete factorization of this expression -25x-25
Annette [7]

Factor −25x−25

−25x−25

=−25(x+1)

Answer:

−25(x+1)

7 0
3 years ago
Suppose a radioactive substance has a half-life of 1000 years. What fraction will be left after 1000 years?
salantis [7]

Answer:

\frac{1}{2}

Step-by-step explanation:

The half life is the amount of time it takes a substance to decay to half of its original amount.

Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.

So, the fraction that will be left after 1000 years is \frac{1}{2}

3 0
3 years ago
Read 2 more answers
Plz help... 50 points and brainliest for correct answers
pogonyaev

Step-by-step explanation:

Hi,

For the first screenshot, your answer will be...

A) 1/10 + 1/4 ≤ 1

And for the second screenshot, your answer will be...

A) d ≤ -1/2n + 5

I hope this helps :)

7 0
3 years ago
which equation results from isolating a radical term and squaring both sides of the equation for the equation
damaskus [11]

Answer:

D) c - 2 = 25 + c + 10√c

Step-by-step explanation:

The given equation is \sqrt{c - 2} - \sqrt{c}  = 5

\sqrt{c -2} = 5 + \sqrt{c} \\

Taking square on both sides, we get

Here we used ( a+ b)^2 = a^2 + b^2 + 2ab formula.

c - 2 = 5^2 + (√c)^2 + 2(5)√c

c - 2 = 25 + c +10√c

Answer: D) c - 2 = 25 + c + 10√c

Thank you.

4 0
3 years ago
Read 2 more answers
Solve 2cos^2x+5cosx+2=0
Nuetrik [128]
2cos^2x+5cosx+2=0\\
x\in\\
\Delta=b^2-4ac\\
\Delta=9\\
\sqrt{\Delta}=3\\
cosx=1\\
or\\
cosx=-6\\
-6\notin\\

Then using trygonometric table or a graph we read that:
cosx=1\Leftrightarrow(x)=0

Period of cosinus function = 2π
So the last answer is x=0+2k\pi\\
6 0
3 years ago
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