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kifflom [539]
3 years ago
6

Match the following figure ​

Mathematics
1 answer:
grigory [225]3 years ago
5 0

Answer:

#4 Would be rectangular prism

#5 would form into a cone

#3. A cylinder

I could be wrong but I hope this helps for a start , it's hard to see the picture  but it's what i could make out. I suggest you look up pics of a cylinder, cone, etc on google images to help more.

Step-by-step explanation:

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. Identify the like terms in the expression x + 2x + y + 1
torisob [31]

Answer:

The like terms are x + 2x which is 3x

and the rest you cant combine

Step-by-step explanation:

3 0
3 years ago
Solve<br> 3(2x - 5) = 9(10 - x)
alisha [4.7K]

Answer:

x=7

Step-by-step explanation:

3(2x - 5) = 9(10 - x)

6x-15=90-9x

6x+9x=90+15

15x=105

x=7

4 0
3 years ago
Read 2 more answers
An inlet pipe on a swimming pool can be used to fill the pool in 2020 hours. The drain pipe can be used to empty the pool in 212
boyakko [2]

Answer:

If the pool is 2/3 filled and then the inlet pipe and drain pipe are opened, it will take 140 hours to fill the pool

Step-by-step explanation:

An inlet pipe can fill the pool in hours = 20

Inlet pipe 1 hour work = \frac{1}{20}

A drain pipe can empty the pool in 21 hours

Drain pipe 1 hour work =\frac{1}{21}

Inlet pipe and drain pipe 1 hour together work = \frac{1}{20}-\frac{1}{21}=\frac{1}{420}

Now we are given that the pool is 2/3 filled

So, remaining portion to be filled =1 - \frac{2}{3} = \frac{1}{3}

So, Inlet pipe and drain pipe fill \frac{1}{420} in hours = 1

So, they can fill 1/3 in hours = \frac{1}{\frac{1}{420}} \times \frac{1}{3} =140 hours

Hence If the pool is 2/3 filled and then the inlet pipe and drain pipe are opened, it will take 140 hours to fill the pool

6 0
4 years ago
Write the inverse of f(x) = 3^x - 1
NeTakaya

The inverse of this function would be f(x) = \frac{Log(x - 1)}{Log3}.


You can find the value of any inverse function by switching the f(x) and the x value. Then you can solve for the new f(x) value. The end result will be your new inverse function. The step-by-step process is below.


f(x) = 3^{x} - 1 ----> Switch f(x) and x


x = 3^{f(x)} - 1 ----> Add 1 to both sides


x + 1 = 3^{f(x)} -----> Take the logarithm of both sides in order to get the f(x) out of the exponent


Log(x + 1) = f(x)Log3 ----> Now divide both sides by Log3


\frac{Log(x - 1)}{Log3} = f(x) ----> And switch the order for formatting purposes.


f(x) = \frac{Log(x - 1)}{Log3}


And that would be your new inverse function.

8 0
4 years ago
Evaluate f(-2) if f(x)=-3x^2-1
Pani-rosa [81]

f(x)=-3x^2-1

f(-2)= -3(-2)²-1=-3·4-1= - 13

4 0
4 years ago
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