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sveta [45]
3 years ago
9

Can anyone please help me with this?

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

Answer:

8

Step-by-step explanation:

2/3·12=24/3=8

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Solve u^2 = -4, where u is a real number. Simplify your answer as much as possible.
alexdok [17]

Answer:

2i and -2i

Step-by-step explanation:

I'll change u to x to be easier to understand.

x^2 = -4

sqrt(x^2) = sqrt(-4)

sqrt(-4) = 2i, or -2i

8 0
2 years ago
The plot below shows the graphs of three functions, f, g, and h, all of which determine the population of three different cities
monitta

So, here we have an exponential function.

Remember that an exponential function has the form:

y=a(b)^x=a(1\pm\frac{r}{100})^x

Where a represents an initial amount, and r is the rate of this amount to change. (Increase, or decrease).

So, given that the population of City A in 2000 was 40 thousand people and the population increased by 13% each year, we can say that

\begin{gathered} a=40 \\ b=1+\frac{13}{100}=1.13 \end{gathered}

So,

f(x)=40(1.13)^x

For city B:

\begin{gathered} a=40 \\ b=1+\frac{16}{100}=1.16 \\ g(x)=40(1.16)^x \end{gathered}

But something different happens with city C. This is not an exponential function, this is a linear function.

So,

h(x)=40+10x

7 0
1 year ago
The curved surface area of a solid<br> cylinder is 660 cm2. what is a curved surface area
boyakko [2]

Answer:it’s ok if your not ok

Step-by-step explanation:

5 0
3 years ago
Ted, the postman, has 110 letters to deliver. If Ted can deliver 10 letters in 5 minutes,
valina [46]

Answer:

55

Step-by-step explanation:

There are 11 tens in 110, so 11 times 5 is 55.

8 0
3 years ago
Please answer answer question
Alex787 [66]

Answer:

c=13.42

Step-by-step explanation:

A^2+B^2=C^2\\6^2+14^2=C^2\\C^2=144+36\\C^2=180\\\sqrt{c^2}=\sqrt{180}  \\c=13.42

6 0
3 years ago
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