3(a+b)=a+2 make a subject of the formula​

Answer:

m= [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

use this formula if you're having two points or a graph

Answer:

Equation A is factoring, x=9 and x=0

Equation B is the square root, x=3

The equation A:  x² - 9 = 0 can be solved by square root method

The equation B: x²  -  9x = 0 can only be solved by factoring

The given equations are:

Equation A:    x²  -  9x = 0

Equation B:    x²  -  9 = 0

The equation x² - 9 can be rewritten as:

x²  -  3² = 0

This is a difference of two squares which can be further expressed as:

(x  -  3)(x + 3) = 0

x  - 3  =  0

x  =  3

x  +  3  = 0

x  =  -3

This shows that the equation x² - 9 = 0 has two roots x = -3 and x = 3

Also, from x² - 9 = 0

[tex]x = \pm\sqrt{9} \\\\x = \pm3[/tex]

For the equation x²  -  9x = 0

This can be factored as x(x - 9) = 0

x  = 0,  x = 9

This is not solved by the square root method.

Therefore, the equation x² - 9 = 0 can be solved by square root method

Learn more here: https://brainly.com/question/18088242

Answer:

x

4

+9y

2

u

200

b−3x

2

y

2

Step-by-step explanation:

Answer:

A.$6.44

B.$8.05

Step-by-step explanation:

A.$6.90/15%=$0.46-$6.90=$6.44

B.$6.44*25%=$1.61+$6.44=$8.05

Answer:

answer for 6.90/15%= 6

answer for 25%= 7.5

Step-by-step explanation: These are answer is all correct there are no mistakes

Answer:

D

Step-by-step explanation:

Answer:

Always true

Step-by-step explanation:

Here, we want to evaluate if the given statement is true

The discriminant D can be calculated using the formula;

b^2 - 4ac

if D is greater than 0, then we will have only real roots

In a case where a and c are of opposite signs;

then -4ac will always give a positive value which can be added to b^2

This positive value will ensure that D is greater than zero and hence we can have only real roots

So this assertion is always true if a and c are of opposite signs

Answer:

4.116 × 108

Step-by-step explanation:

I simply used a Scientific Notation Converter

Answer:

The answer would be 4.116 x 10 exponent of 8

Step-by-step explanation:

In scientific notation, the answer has to be between 1-10, so to make this number between one and ten, you must create a decimal behind the number in the one's place and move it until you get to the first number (in this case, you would move it eight times, so your equation would be 4.116 x 10 to the eight power (exponent of eight). If you need to round the number to the tenth place, it's 4.1 x 10^8

Hope this helps!

Answer:

104

Step-by-step explanation:

13x8=104

Answer:

0

Step-by-step explanation:

Answer:

Step-by-step explanation:

rip

Answer: the ratio 2:5

Step-by-step explanation:

I think thats the answer,

Answer:9

Step-by-step explanation:

basically what you do is 1equal 1 divided by 8 2 68 equals one so yea

Answer: 6.5 cm

Step-by-step explanation:

1 km= 1000000 cm

130 km / 2,000,000 = 6.5

Answer:

x intercept: (-9,0)

Y intercept: (0,3)

Answer:

A

Step-by-step explanation:

slope is (y2-y1)/(x2-x1)

anyhow that comes out to -3/2

the only place that actually applies is in A

Answer:

A

Step-by-step explanation:

6=-3/2×-2+3

6=3+3

6=6

-3=-3/2×4 + 3

-3=-6+3

-3=-3

Answer:

{8,14,-19}=R

..................

Answer:

x=14 y=37

Step-by-step explanation:

Answer:a-20miles

b-5miles

C-35 miles

Step-by-step explanation:

Answer: 1.1

1.01 x 1.1 = 1.111

I hope this is good enough:

Answer:

x = 8

Step-by-step explanation:

Given

- 2(- 3x + 3) + 2x = 58 ← distribute and simplify left side

6x - 6 + 2x = 58

8x - 6 = 58 ( add 6 to both sides )

8x = 64 ( divide both sides by 8 )

x = 8

Answer:

-25

Step-by-step explanation:

Answer:

Step-by-step explanation:

660 flat salary

2000*4%= 80

13000*6%=780

660+80+780= 1520

Answer:

660+80+780= 1520

Step-by-step explanation:

Hope that helps

lemme know

Answer:

22w + 115 = 325           w = about 10 weeks

Step-by-step explanation:

The first part of this inequaltiy is 22w. Since he/she will set aside $22 a week, you would put a variable because the number of weeks you will need to set aside $22 is unknown therefore you put a variable that makes sense. I put w because you can say that w=weeks. The next part of the inequality is adding $115 because he/she has already saved $115 so we add that to 22w. Finally 22w+115 has to equal $325 because that is how much the necklace costs. Hope this helps!

Answer:

3x + 3x + 3x = 3x . but as 1 x + 1x equals 7/8, but 7 x 4 - 3 x 6 = 100002.0389487384, where as dim + dim = ddiimm

Step-by-step explanation:

Answer:

Step-by-step explanation:

∠A + ∠B = 180

where ∠A = 6x - 18

           ∠B = 14x + 38

first step is to solve for x:

6x - 18 + 14x + 38 = 180

6x + 14x = 180 + 18 - 38

20x = 160

x = 160 / 20

x = 8

now substitute x=8 into angle A

∠A = 6x - 18

∠A = 6(8) - 18

∠A = 30°

Answer:

4x^4yz^2(3-2xy^2)

Step-by-step explanation:

take common fitst

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[tex]12 {x}^{4} y {z}^{2} - 8 {x}^{3} {y}^{3} {z}^{2} [/tex]

Factoring 4x³yz²

[tex]4 {x}^{3} y {z}^{2}(3x - 2 {y}^{2} )[/tex]

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Answer:

1024

Step-by-step explanation:

You could put 4^5 into your calculator. It’s 4*4*4*4*4= 1024

Answer:

4

Step-by-step explanation:

because 32 divided by 8 = 4

Answer: 6,440

                                                2

Step-by-step explanation:    230

                                               x 28

                                            ————-

                                            1

                                              1,840

                                            + 4,600

                                           —————

                                              6,440