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yarga [219]
3 years ago
10

-5x + 10y =40 Solve intercept form

Mathematics
1 answer:
Tema [17]3 years ago
5 0
I thought I knew the answer but I don’t Srry I need points
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Can this please be worked out so I can have a better understanding?
larisa86 [58]

Step-by-step explanation:

no, no, you use the equation to identify a, b and c.

then you use the formula with these values to get the solutions to the equation (the values of x for which the equation delivers 0).

always remember, a quadratic equation always has 2 solutions. sometimes at least one of them are not a real number, sometimes the 2 springs are equal, ...

x² - 4x - 2 = 0

a, b, c are the factors of the terms in x and the constant term.

so,

a = 1

b = -4

c = -2

x = (-b ± sqrt(b² - 4ac))/(2a)

x = (4 ± sqrt((-4)² - 4×1×-2))/(2×1) =

= (4 ± sqrt(16 + 8))/2 = (4 ± sqrt(24))/2 =

= (4 ± sqrt(4×6))/2 = (4 ± 2×sqrt(6)) / 2 =

= 2 ± sqrt(6)

x1 = 2 + sqrt(6)

x2 = 2 - sqrt(6)

6 0
2 years ago
Read 2 more answers
What is the Least Common Multiple for 6 and 8?
VladimirAG [237]

Answer:

24

Step-by-step explanation:

The multiples of 8 are 8,16,24,32 etc. and the multiples of 6 are 6,12,18,24,30, ect. The answer is 24 because it is the lowest multiple of 6 that crosses with multiples of 8.

7 0
3 years ago
Lisa swam 6 less than four times as many laps as Amanda. Brynne swam eight more than twice as many laps as Amanda. If Lisa and B
Ganezh [65]

Answer:

22 laps

Step-by-step explanation:

Lisa swam 6 fewer laps than four times of Amanda's laps.

Hence, L = 4A - 6

Again, Brynne swam eight more than twice as many laps as Amanda.

Hence, B =2A + 8

If Lisa and Brynne swam the same amount of laps, then  

L = B  

⇒ 4A - 6 = 2A + 8

⇒ 2A = 14

⇒ A = 7 laps

So, B = 2A + 8 = 2(7) + 8 = 22 laps

Therefore, Brynne swam 22 laps. (Answer)

3 0
4 years ago
Apply the Distributive Property.<br> -3(4y-9)
olganol [36]
-12y + 27

So what you do is take the numbers outside the (parentheses) which in this case is -3 and then multiply it to positive 4y and -9 to get your answer!
8 0
3 years ago
Read 2 more answers
What is the slope of a line parallel to the line whose equation is 9x+3y=-27
GREYUIT [131]

Answer:

One example would be y = -3x

Step-by-step explanation:

We can more easily find a line parallel to the given equation if it is put in slope intercept form.

3y = -27 - 9x

y = -3x - 9

So the slope is -3. You can choose any line also with a slope of -3.

5 0
3 years ago
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