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2 years ago

Please solve as fast as possible...No spams please......

Mathematics

1 answer:

lisabon 2012 [21]2 years ago

8 0

Answer:

In ∆ABD and ∆ACD

<BAD =<CAD ( each are half of <A )

<D=<D ( each equal to 90°)

AD = AD ( common)

So ∆ ABD is congruent to ∆ ACD.

Then AB =AC (by C.P.C.T)

Hence,∆ABC is an iso - sceles triangle.

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Find the solution of the given initial value problems in explicit form. Determine the interval where the solutions are defined.

natali 33 [55]

Answer:

The solution of the given initial value problems in explicit form is $y=x-x^2-2$ and the solutions are defined for all real numbers.

Step-by-step explanation:

The given differential equation is

$y'=1-2x$

It can be written as

$\frac{dy}{dx}=1-2x$

Use variable separable method to solve this differential equation.

$dy=(1-2x)dx$

Integrate both the sides.

$\int dy=\int (1-2x)dx$

$y=x-2(\frac{x^2}{2})+C$ $[\because \int x^n=\frac{x^{n+1}}{n+1}]$

$y=x-x^2+C$ ... (1)

It is given that y(1) = -2. Substitute x=1 and y=-2 to find the value of C.

$-2=1-(1)^2+C$

$-2=1-1+C$

$-2=C$

The value of C is -2. Substitute C=-2 in equation (1).

$y=x-x^2-2$

Therefore the solution of the given initial value problems in explicit form is $y=x-x^2-2$ .

The solution is quadratic function, so it is defined for all real values.

Therefore the solutions are defined for all real numbers.

4 0

2 years ago

Please help me on this question as soon as possible

lbvjy [14]

First move the 14 over so 1/3s = 12 then do 12 divided by 1/3, that would be 36 so s=36

7 0

3 years ago

If f(x)=2x and g(x)=x−3, then find f(x)·g(x).

Serhud [2]

Answer:

f(x)g(x) = 2x² - 6x

General Formulas and Concepts:

Algebra I

Expand by FOIL-ing (First, Outside, Inside, Last)

Step-by-step explanation:

Step 1: Define

f(x) = 2x

g(x) = x - 3

Step 2: Find f(x)g(x)

Substitute: f(x)g(x) = 2x(x - 3)
Distribute 2x: f(x)g(x) = 2x² - 6x

4 0

2 years ago

1/4x - 5 = 3/4x - 12

Makovka662 [10]

Answer:

Solve for x

x=14

Step-by-step explanation:

by simplifying both sides of the equation, then isolating the variable.

3 0

2 years ago

Help me please I have to pass

valina [46]

Answer:

Step-by-step explanation:

15% of 400

15/100*400

15*400/100

6000/100

therefore ur answer is 60

8 0

3 years ago

Read 2 more answers

Please solve as fast as possible...No spams please......​

Please solve as fast as possible...No spams please......