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3 years ago

ExplainFind all the values of x for which the statement is true, |x^2+9|=x^2+9

Mathematics

1 answer:

Tju [1.3M]3 years ago

6 0

The 2 statements are identical even if one has absolute value

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You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?

joja [24]

If you get 9 text messages in 12 min, you can get the answer by multiplying the amount of message with 60 minutes (as the time unit is in minute) so and then divide it by 12 as shown below.
9×60÷12 = 45 text messages

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3 years ago

Find the slope of the line

olga55 [171]

Answer:

slope or m = -1

Step-by-step explanation:

The slope formula is:

y2-y1 -3 - 1 -4 -4

-------- = -------------- = --------- = ----- = -1

x2-x1 1 - (-3) 1+3 4

So, the slope is -1 XD YAY!!

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3 years ago

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50% of 80 solve pls show working pls I know it just try working it

Eduardwww [97]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{40}}}}}$

Step-by-step explanation:

$\sf{50 \: \% \: of \: 80}$

To convert the percent into a fraction , divide it by 190 and remove the % symbol. Then , Simplify the fraction to its lowest term.

⇒ $\sf{ \frac{50}{100} \times 80}$

⇒ $\sf{ \frac{1}{2} \times 80}$

Divide 80 by 2

⇒ $\sf{40}$

Hope I helped!

Best regards!!

5 0

3 years ago

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What is the equation of a line with a slope of -2 that passes through the point (6,8)

kakasveta [241]

Answer:

Step-by-step explanation:

hello :

the point-slope formula is :

y - y_1 = m(x - x_1) the point is A(x_1 , y_1 ) , m : the slope

in this exercice : x_1 = 6 y_1 = 8 m = -2

so : y - 8 = -2(x - 6) ...an equation for this line .

3 0

3 years ago

Read 2 more answers

Pleaseeeeeee help mee

BlackZzzverrR [31]

Answer:

The solution of the given trigonometric equation

$x = \frac{\pi }{6}$

Step-by-step explanation:

Step(i):-

Given

$cos( 3x - \frac{\pi }{3} ) = \frac{\sqrt{3} }{2}$

$cos( 3x - \frac{\pi }{3} ) = cos (\frac{\pi }{6} )$

$3x - \frac{\pi }{3} = \frac{\pi }{6}$

$3x - \frac{\pi }{3 } + \frac{\pi }{3} = \frac{\pi }{6} + \frac{\pi }{3}$

$3x = \frac{2\pi +\pi }{6} = \frac{3\pi }{6} = \frac{\pi }{2}$

$x = \frac{\pi }{6}$

Step(ii):-

The solution of the given trigonometric equation

$x = \frac{\pi }{6}$

verification :-

$cos( 3x - \frac{\pi }{3} ) = \frac{\sqrt{3} }{2}$

put $x = \frac{\pi }{6}$

$cos( 3(\frac{\pi }{6}) - \frac{\pi }{3} ) = \frac{\sqrt{3} }{2}$

$cos (\frac{\pi }{6} ) = \frac{\sqrt{3} }{2} \\\\\frac{\sqrt{3} }{2} = \frac{\sqrt{3} }{2}$

Both are equal

∴The solution of the given trigonometric equation

$x = \frac{\pi }{6}$

4 0

3 years ago

ExplainFind all the values of x for which the statement is true, |x^2+9|=x^2+9​

ExplainFind all the values of x for which the statement is true, |x^2+9|=x^2+9