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3 years ago

How many solutions are there to this equation?

Mathematics

2 answers:

Lelechka [254]3 years ago

6 0

There are 0 solutions

victus00 [196]3 years ago

6 0

Answer: the correct option is

(b) 0.

Step-by-step explanation: We are given to find the number of solutions for the following linear equation :

$9x-16=9x-23~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

To find the number of solutions of the given equation, we must try to solve the equation and find the value of x.

From equation (i), we have

$9x-16=9x-23\\\\\Rightarrow 9x-9x=-23+16\\\\\Rightarrow 0=-7,$

which can never be possible.

Thus, the given equation has NO solution.

Option (b) is CORRECT.

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photoshop1234 [79]

Substitute $u=x^2+4$ and $du=2x\,dx$ . Then the integral transforms to

$\displaystyle \int \frac{x\,dx}{(x^2+4)^3} = \frac12 \int \frac{du}{u^3}$

Apply the power rule.

$\displaystyle \int \frac{du}{u^3} = -\dfrac1{2u^2} + C$

Now put the result back in terms of $x$ .

$\displaystyle \int \frac{x\,dx}{(x^2+4)^3} = \frac12 \left(-\dfrac1{2u^2} + C\right) = -\dfrac1{4u^2} + C = \boxed{-\dfrac1{4(x^2+4)^2} + C}$

3 0

2 years ago

Find the length of BC.

Murrr4er [49]

Answer:

C, 53.68 units

Step-by-step explanation:

tan 54° = $\frac{x}{39}$

39 tan 54° = x

x= 53.6788949 (just plug it in a scientific or graphing calculator)

x≈53.68

4 0

2 years ago

10 POINTS IDENTIFY THE SLOPE, Y-INTERCEPT AND GRAPH.<br> 1. Y = 2x + 3<br> 2. Y = 3/4x - 2

Alenkasestr [34]

Answer for problem 1: slope = 2, y intercept = 3

Answer for problem 2: slope = 3/4, y intercept = -2

Explanation:

Both equations are in the form y = mx+b. This is known as slope intercept form. This is because we can read off the values of the slope and y intercept very quickly. We have y = 2x+3 match up with y = mx+b. The m is the slope and b is the y intercept. So m = 2 and b = 3 for this equation. A similar situation happens with the other equation as well. It might help to rewrite the second equation into y = (3/4)x + (-2).

4 0

3 years ago

Read 2 more answers

Write an= 8 + (n-1)(3) as a function

Citrus2011 [14]

Answer:

The answer to your question is 3n+5

5 0

3 years ago

Please look at picture attached! i will mark you brainlyest if right!

katrin2010 [14]

Amp is the number in front of sine so its 1/2 aka D :)

8 0

2 years ago