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2 years ago

What is 9x-8=0 help pls

Mathematics

2 answers:

Tamiku [17]2 years ago

8 0

Answer:

$\large\boxed{x=\dfrac{8}{9}}$

Step-by-step explanation:

$9x-8=0$ add 8 to both sides

$9x-8+8=0+8$

$9x=8$ divide both sides by 9

$\dfrac{9x}{9}=\dfrac{8}{9}\\\\x=\dfrac{8}{9}$

hichkok12 [17]2 years ago

4 0

Answer:

x =8/9

Step-by-step explanation:

9x-8+8=0+8

9x=8

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X^2-x+2=0 Please use the quadratic formula

Ainat [17]

Answer:

$\boxed{\sf x=\cfrac{1\pm \sqrt{-7} }{2}}$

Step-by-step explanation:

$\sf x^2-x+2=0$

Use quadratic formula:

$\boxed{\sf \frac{-b\pm \sqrt{b^2-4ac}}{2a}}$

$\sf a=1, b=-1, c=2$

___________________________

$\sf x_1,_2=\cfrac{-\left(-1\right)\pm \sqrt{\left(-1\right)^2-4\times \:1\times \:2}}{2\times \:1}$

$\sf \sqrt{\left(-1\right)^2-4\times \:1\times \:2}$

$\sf =\sqrt{-7}$

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$\sf x_1,_2\cfrac{-\left(-1\right)\pm \sqrt{-7}}{2\times \:1}$

$\sf -(-1)=1$

$2\times 1=2$

$\sf x_1,_2=\cfrac{1\pm \sqrt{-7} }{2}$

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Learn more: brainly.com/question/22286698

4 0

2 years ago

Last weekend nina mowed 4 lawns and received $60 this weekend she mowed 6 lawns and received $90 what is the constant of proport

frozen [14]

Answer: nina is getting $15 for 1 lawn.

Step-by-step explanation:

1 $15

2 $30

3 $45

4 $60

5 0

3 years ago

The opposite of the fraction one third

lozanna [386]

The opposite of the fraction one third would be negative one third. To be opposite, they must have differing signs. One number should be positive and the other number should be negative. It is different from reciprocal. To be a reciprocal, one number should be the flipped fraction, or upside down version, of the other number.

3 0

3 years ago

Given that(4,6) is on the graph of f(x) find the corresponding point for the function f(-4x)

Len [333]

Answer:

(-1,6)

Step-by-step explanation:

Given that(4,6) is on the graph of f(x)

f(-4x) means x is multiplied by -4

When x is multiplied by -1 then there will be reflection over y axis

We multiply every point by -1. so multiply the x values of the given point (4,6) by -1

New point is (-4,6)

If any number is multiplied with x then there will be a horizontal compression or stretch.

4 is multiplied with x , so there will be horizontal compression because 4 is greater than 1

To get new point, we divide the x values by 4 for compression

we already got (-4,6) after multiplying by -1

Now we divide the x coordinate -4 by 4 = -1

So corresponding point for the function f(-4x) is (-1,6)

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2 years ago

Sarah has 25 coins that are dimes and nickels. Together they total $2.00. How many of each type does she have?

Ivanshal [37]

Answer:

15 dimes and 10 nickels

Step-by-step explanation:

15 dimes because 15 multiplied by 10 cents is $1.50

10 nickels because 10 multiplied by 5 cents is $0.50

15 x 0.10 = 1.50 10 x 0.50 = 0.50

0.50 + 1.50 = 2.00

8 0

2 years ago

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