4 years ago

O earn a profit of $25, what percent does the store need to markup the item

Mathematics

1 answer:

irina1246 [14]4 years ago

7 0

Is the that the entire question?

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Solve for x.<br><br> y=4+bx^2

kicyunya [14]

$y=4+bx^2$

$bx^2 = y - 4$

$x^2 = \dfrac{y-4}{b}$

$x = \pm \sqrt{ \dfrac{y-4}{b} }$

3 0

4 years ago

If (x) =7-3x, determine the value of x when f(x)=16.

melomori [17]

Answer:

f=16/7.3x

Step-by-step explanation:

Lets solve for f:

f(7.3)=16

Step 1:Divide both sides by 7.3x

7.3f/7.3x=16/17.3x

f=16/7.3x

3 0

3 years ago

The total current of a parallel circuit is 9+j2 amps and the current of one component of the circuit is 3−j5 amps. What is the c

stealth61 [152]

Apply law of total resistance in parallel circuit

$\\ \tt\hookrightarrow \dfrac{1}{R}=\dfrac{1}{R_1}+\dfrac{1}{R_2}$

$\\ \tt\hookrightarrow \dfrac{1}{9+2J}=\dfrac{1}{3-5j}+\dfrac{1}{R_2}$

$\\ \tt\hookrightarrow \dfrac{1}{R_2}=\dfrac{1}{9+2J}-\dfrac{1}{3-5J}$

$\\ \tt\hookrightarrow \dfrac{1}{R_2}=\dfrac{3-5J-9-2J}{(9+2J)(3-5J)}$

$\\ \tt\hookrightarrow R_2=\dfrac{(9+2J)(3-5J)}{-6-7J}$

4 0

3 years ago

Domain: {4, 0} range: (-2, 0, 2}

Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

4 0

3 years ago

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PLEASE HELP ME OUT..........

Vlad1618 [11]

Here is your answer

$\bold{x=12}$

REASON:

$Concept used$ : The opposite sides of a parallelogram are equal.

So, in above given figure

$3x+7=5x-17$ (measures of opposite sides)

$5x-3x= 17+7$

$2x= 24$

$x= 24/2$

$x= 12$

HOPE IT IS USEFUL

6 0

3 years ago

Read 2 more answers