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4 years ago

Complete the square so that the left side of x2 + 8x − 3 = 0 becomes a binomial squared. (x +_)2 = _

Mathematics

1 answer:

Eva8 [605]4 years ago

6 0

Answer:

(x + 4)2 = 19

4 and 19 is the answer.

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Can someone help me with this question

Nonamiya [84]

Answer:

A 50

B 10

C 12/5

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3 years ago

A line passes through (3, -2) and (6,2). Write an equation for the line in point-slope form.

snow_lady [41]

Answer:

4x - 3y -18 = 0 or y = 4x/3 - 6

Step-by-step explanation:

We will have to find the slope of the line first

The formula for slope:

$m =\frac{y_{2}- y_{1} }{x_{2} -x_{1} } \\m= \frac{-2-2}{3-6}\\ =\frac{-4}{-3}\\ =\frac{4}{3}$

The standard form of equation of a line is:

y = mx + b

We know m,

So the equation will be:

$y= \frac{4}{3}x+b$

We have to find the value of b, for that we will put any one of the point in the equation

So, putting (6,2)

2 = 4/3 * 6 + b

2 = 8 +b

b = -6

Putting the value of m and b in the standard form of equation of line,

$y = mx + b\\y = \frac{4}{3}x+(-6)\\y = \frac{4}{3} x - 6\\Multiplying\ both\ sides\ by\ 3\\3y = 4x - 18\\4x - 3y -18 = 0$ ..

7 0

3 years ago

Does addition in the whole numbers have the cancellation property.

Ivanshal [37]

Answer:

Although the cancellation law holds for addition, subtraction, multiplication and division of real and complex numbers (with the single exception of multiplication by zero and division of zero by another number), there are a number of algebraic structures where the cancellation law is not valid.

7 0

2 years ago

Assume that 0 < x < pi/2 0 < y < pi/2 Find the exact value of cos(x - y) * if * cos x = 3/5 and cos y = 4/5

jasenka [17]

Answer:C

Step-by-step explanation: It’s C because I guessed that $h1t and looked back and I got it right. When in doubt always pick C my dudes.

8 0

3 years ago

The sum of ten and the quotient of a number 2 and 6.

elixir [45]

Answer:

10+(n/2)=6

Step-by-step explanation:

Let the number be n

Quotient of n and 2 is (n/2)

Sum of this and 10 is

10+(n/2)=6

8 0

3 years ago

Complete the square so that the left side of x2 + 8x − 3 = 0 becomes a binomial squared. (x +___)2 = ___

Complete the square so that the left side of x2 + 8x − 3 = 0 becomes a binomial squared. (x +_)2 = _