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aev [14]
3 years ago
14

Expand and simplify (2x - 3)(3x + 4)

Mathematics
2 answers:
sp2606 [1]3 years ago
8 0
(2x*3x)+2x*4-3(3x)-3(4)

6x^2+8x-9x-12

6x^2-x-12


Ket [755]3 years ago
8 0
The answer to your question is : 6x^2 + 8x -12
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(a) Use Euler's method with step size 0.2 to estimate y(1.4), where y(x) is the solution of the initial-value problem y' = 4x −
Verizon [17]

Answer:

y\left(1.4\right)=0.992.

Step-by-step explanation:

The Euler's method states that y_{n+1}=y_n+h \cdot f \left(x_n, y_n \right), where x_{n+1}=x_n + h.

To find y\left(1.4 \right) for y'=- 4 x y + 4 x when y\left(1 \right)=0, with step size h=0.2 using the Euler's method you must:

We have that h=0.2=\frac{1}{5}, x_0=1, y_0=0, f(x,y)=- 4 x y + 4 x.

Step 1.

x_{1}=x_{0}+h=1+\frac{1}{5}=\frac{6}{5}

y\left(x_{1}\right)=y\left( \frac{6}{5} \right)=y_{1}=y_{0}+h \cdot f \left(x_{0}, y_{0} \right)=0+h \cdot f \left(1, 0 \right)=0 + \frac{1}{5} \cdot \left(4.0 \right)=0.8

Step 2.

x_{2}=x_{1}+h=\frac{6}{5}+\frac{1}{5}=\frac{7}{5}=1.4

y\left(x_{2}\right)=y\left( \frac{7}{5} \right)=y_{2}=y_{1}+h \cdot f \left(x_{1}, y_{1} \right)=0.8+h \cdot f \left(\frac{6}{5}, 0.8 \right)=0.8 + \frac{1}{5} \cdot \left(0.96 \right)=0.992

The answer is y\left(1.4\right)=0.992

3 0
3 years ago
Find Y
djverab [1.8K]

Answer:

\sin(30)  =  \frac{y}{2 \sqrt{2} }  \\  \\  <  =  >  \frac{1}{2}  =  \frac{y}{2 \sqrt{2} }  \\  <  =  > y =  \frac{2 \sqrt{2} }{2}  \\  \\  <  =  > y =  \sqrt{2}

8 0
2 years ago
Read 2 more answers
What is 1/5 of 11????????????
Helga [31]
Multiply 1/5 by 11 to get 2.2, to check, multiply 2.2 by 5. The answer though, is 2.2.
7 0
3 years ago
What is my weighted grade please explain how it's done.
salantis [7]

That's not enough information to calculate your grade from.

-- You've told us the scores you have in things that go together
to make up (35 + 5 + 25) = 65%  of your grade.

-- We don't know your scores in the things that make up the other
35% of your grade.

4 0
3 years ago
What is 2/5 as a percent?
Kitty [74]
2/5 multiply the top and bottom number by 20 you get 40/100 which is the same as 40%
3 0
3 years ago
Read 2 more answers
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