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3 years ago

Explain how to solve this equation. -4n - Sn + 10 = 34

Mathematics

1 answer:

kicyunya [14]3 years ago

8 0

There go the answer

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Solve x2 − 12x + 5 = 0 using the completing-the-square method. x = six plus or minus the square root of five x = negative six pl

Andru [333]

we are given

$x^2-12x+5=0$

we have to solve it by completing square method

step-1: Move 5 on right side

$x^2-12x+5-5=0-5$

$x^2-12x=-5$

step-2: Break middle term

$x^2-2*6*x=-5$

step-3: Add 6^2 both sides

$x^2-2*6*x+(6)^2=-5+(6)^2$

$(x-6)^2=31$

step-3: Solve for x

$\sqrt{(x-6)^2} =\sqrt{31}$

we wil get two values

First value is

$x-6=\sqrt{31}$

add both sides 6

$x-6+6=6+\sqrt{31}$

$x=6+\sqrt{31}$

Second value is

$x-6=-\sqrt{31}$

add both sides 6

$x-6+6=6-\sqrt{31}$

$x=6-\sqrt{31}$

so, solutions are

$x=6+\sqrt{31}$

$x=6-\sqrt{31}$ .............Answer

5 0

3 years ago

Which of the following best describes the slope of the line below?

strojnjashka [21]

Answer:

the answer is D: undefined becous it's lies at Y-axis

3 0

3 years ago

Can someone help me with this please

e-lub [12.9K]

Answer: y=-2x+6

Step-by-step explanation:

$m=\frac{6-2}{0-2}=\frac{4}{-2}=-2$

So $y=2x+b$ . We can substitute (0, 6) to get:

6 = 2(0)+b

b=6.

Meaning y=-2x+6.

8 0

2 years ago

A-5-B when A=9 and B=-4

Fed [463]

Answer:

Step-by-step explanation:

(Refer to picture)

Plug in the value of A and the value of B into the expression

3 0

3 years ago

Find the area of the figure.

Hitman42 [59]

Answer:

Step-by-step explanation:

8x13=104-13=91 I have done this problem before on big ideas and it is either this or 87

5 0

3 years ago