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denis-greek [22]
3 years ago
10

Solve for x. -2 (7 - 4x) = 1/2 (4 + 16x) - 16

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0

Answer:

this may be wrong question

Step-by-step explanation:

-14+8x = 2+8x-16

-14+ 8x = -14 +8x

-14+14=8x-8x

0=0

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Hello can anyone please help me find the answer to this.
Law Incorporation [45]

Answer:

Step-by-step explanation:

No.  Starting out, Maria walks away from home at a constant speed (which we recognize because the graph is at first a straight line).  Then she stops  for  a little while, turns around and heads for home at the same speed as before (positively sloped graph), level graph, negatively sloped graph).

8 0
3 years ago
How do you do this question?
ElenaW [278]

x*y' + y = 8x

y' + y/x = 8 .... divide everything by x

dy/dx + y/x = 8

dy/dx + (1/x)*y = 8

We have something in the form

y' + P(x)*y = Q(x)

which is a first order ODE

The integrating factor is u(x) = e^{\int P(x)dx} = e^{\int (1/x) dx} = e^{\ln(x)} = x

Multiply both sides by the integrating factor (x) and we get the following:

dy/dx + (1/x)*y = 8

x*dy/dx + x*(1/x)*y = x*8

x*dy/dx + y = 8x

y + x*dy/dx = 8x

Note the left hand side is the result of using the product rule on xy. We technically didn't need the integrating factor since we already had the original equation in this format, but I wanted to use it anyway (since other ODE problems may not be as simple).

Since (xy)' turns into y + x*dy/dx, and vice versa, this means

y + x*dy/dx = 8x turns into (xy)' = 8x

Integrating both sides with respect to x leads to

xy = 4x^2 + C

y = (4x^2 + C)/x

y = (4x^2)/x + C/x

y = 4x + Cx^(-1)

where C is a constant. In this case, C = -5 leads to a solution

y = 4x - 5x^(-1)

you can check this answer by deriving both sides with respect to x

dy/dx = 4 + 5x^(-2)

Then plugging this along with y = 4x - 5x^(-1) into the ODE given, and you should find it satisfies that equation.

6 0
3 years ago
Page No<br>Date:<br>Convert (1020)5 to base ten numeral<br>​
pickupchik [31]
The answer is 204. Your well
8 0
2 years ago
-3 x 2(4-18) + 8 =<br> Solve the equation
Karolina [17]

we are given

-3 x 2(4-18) + 8 =

Firstly , we will solve inside parenthesis

-3 *2(4-18) + 8 =

-3 *2*-14 + 8 =

now, we can multiply

-6*-14 + 8 =

84 + 8 =

=92............Answer

6 0
2 years ago
Read 2 more answers
I NEED HELP ASAP I WILL MARK YOU THE BRAINLIEST
Nataliya [291]
Alternate Interior Angles. You’re welcome
7 0
2 years ago
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