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3 years ago

What's 3.7 in a fraction

Mathematics

2 answers:

Dmitry [639]3 years ago

8 0

Answer:

3.7 converted into a fraction is $\frac{37}{10}$

Step-by-step explanation:

Dima020 [189]3 years ago

7 0

Answer:

3 7/10

Hope that helped!

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(x+3)(3x² - 5x - 10) multiply polynomial

brilliants [131]

Answer:

$\boxed{\sf{3x^3+4x^2-25x-30}}$

Step-by-step explanation:

$\underline{\text{SOLUTION:}}$

To isolate the term of x from one side of the equation, you must multiply by a polynomial.

$\underline{\text{GIVEN:}}$

$:\Longrightarrow: \sf{(x+3)(3x^2 - 5x - 10)}$

You have to solve with parentheses first.

$:\Longrightarrow \sf{x\cdot \:3x^2+x\left(-5x\right)+x\left(-10\right)+3\cdot \:3x^2+3\left(-5x\right)+3\left(-10\right)}$

Solve.

$\sf{x*3x=3x^3}$

x(-5x)=-5x²

$\sf{x(-10)=-10x}$

3*3x²=9x²

3(-5x)=-15x

3(-10)=-30

Then, rewrite the problem down.

$\sf{3x^3-5x^2-10x+9x^2-15x-30}$

Combine like terms.

$\Longrightarrow: \sf{3x^3-5x^2+9x^2-10x-15x-30}$

Add/subtract the numbers from left to right.

-5x²+9x²=4x²

$\Longrightarrow: \sf{3x^3+4x^2-10x-15x-30}$

Solve.

$\sf{-10x-15x=-25x}$

Then rewrite the problem.

$\Longrightarrow: \boxed{\sf{3x^3+4x^2-25x-30}}$

Therefore, the correct answer is 3x³+4x²-25x-30.

I hope this helps! Let me know if you have any questions.

6 0

2 years ago

Read 2 more answers

Which represents the inverse of the function f(x) = 4x?

Cloud [144]

To find the inverse function simply replace "x" by "y", replace "y" by "x", and solve for y
f(x)=4x
y=4x
x=4y
y=x/4 or h(x)=(1/4)x

8 0

2 years ago

F(x)=3x-5 please help :>

Molodets [167]

Answer:

x= 5/3?????

Step-by-step explanation:

try using math

way

6 0

3 years ago

Calculate the average ratw of change of a function, f(x)=x^2 as x changes from 5 to 15

Sergeeva-Olga [200]

The answer for your problem is shown on the picture.

4 0

3 years ago

If x^2+2=3^2/3+3^-2/3 then prove that 3x^3+9x-8=0

gregori [183]

Answer:

See below.

Step-by-step explanation:

x^2 + 2 = 3^2/3 + 3^-2/3

x^2 = 3^2/3 + 3^-2/3 - 2

x = √(3^2/3 + 3^-2/3 - 2)

x = 0.748888296

Substitute for x in 3x^3 + 9x - 8:

3( 0.748888296)^3 + 9( 0.748888296) - 8 = 0.

So it is proved.

6 0

3 years ago

Read 2 more answers