What multiplies to be 9 and adds to be 0

Answers

Answer 1

Answer: is it 9 or -9 ;
But if it's -9, the answer will be 3,-3.

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Solve x2 − 3x = −8.x equals quantity of 3 plus or minus I square root of 29 all over 2

x equals quantity of 3 plus or minus I square root of 23 all over 2

x equals quantity of negative 3 plus or minus I square root of 29 all over 2

x equals quantity of negative 3 plus or minus I square root of 23 all over 2

Answers

we have

$x^(2) -3x=-8$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^(2) -3x+1.5^(2)=-8+1.5^(2)$

$x^(2) -3x+1.5^(2)=-5.75$

Rewrite as perfect squares

$(x-1.5)^(2)=-5.75$

Square Root both sides

$x-1.5=(+/-)√(-5.75)$

Remember that

$√(-1)=i$

$√(5.75)= \sqrt{(23)/(4)}=(√(23))/(2)$

Substitute

$x-1.5=(+/-)i(√(23))/(2)$

$x=1.5(+/-)i(√(23))/(2)$

$x=(3/2)(+/-)i(√(23))/(2)$

$x=(3/2)+i(√(23))/(2)=(3+i√(23))/(2)$

$x=(3/2)-i(√(23))/(2)=(3-i√(23))/(2)$

therefore

the answer is

x equals quantity of 3 plus or minus I square root of 23 all over 2

Answer:

x equals 3 plus or minus i square root of 23 all over 2

Step-by-step explanation:

I got it right on the test.

How do I evaluate the expression 2* the square root 36+9

Answers

36+9=45

6^2 + 3^2 += 45

The expression 2 * √36 + 9 evaluates to 21.

The expression 2 * √36 + 9 evaluates to 21 when you follow the order of operations known as BODMAS. You first calculate the square root of 36, then multiply the result by 2 and finally add 9.

To evaluate the given mathematical expression, we must first understand the order of operations, also known as BODMAS.

The acronym BODMAS stands for Brackets, Orders, Division/Multiplication (from left to right), Addition/Subtraction (from left to right). It represents the sequence in performing mathematical operations.

Let's apply this to the question: 2 * √36 + 9?

First, consider the 'Order', which is the square root (√). The square root of 36 is 6.

Next, apply the 'Multiplication'. So, 2 multiplied by 6 equals 12.

Finally, apply the 'Addition'. 12 plus 9 equals 21.

So, the expression 2 * √36 + 9 evaluates to 21.

Learn more about BODMAS here:

brainly.com/question/29756765

#SPJ2

Solve the following system of equations by substitution and select the correct answer below: 4x − 6y = 28 8x − 4y = 24

Answers

Answer:

the solution is the point $(1,-4)$

Step-by-step explanation:

we have

$4x-6y=28$

isolate the variable x

$4x=28+6y$

$x=7+1.5y$ -----> equation A

$8x-4y=24$ -----> equation B

substitute the equation A in equation B

$8(7+1.5y)-4y=24$

$56+12y-4y=24$

$12y-4y=24-56$

$8y=-32$

$y=-4$

Find the value of x

$x=7+1.5(-4)=1$

the solution is the point $(1,-4)$

According to my calculation it should be C: x= 1 and y = - 4
NOTE: I had it right on my online class.

Simplify the expression (2x − 9)(x + 6).

Answers

( 2x - 9 ) ( x + 6 )

( 2x ) ( x ) + ( 2x ) ( 6 ) + ( - 9 ) ( x ) + ( - 9 ) ( 6 )

2x² + 12x - 9x - 54

2x² + 3x - 54.

(2x-9)•(x+6)

2x•x+2x•6-9•x-9•6

2x²+12x-9x-54
2x²+(12-9)•x -54
2x²+3x-54

Which describes how the parent function, f(x) = |x|, is transformed to show the function f(x) = 0.1|x – 3|? A.It is wider and shifted 3 units to the left.
b. It is wider and shifted 3 units to the right.
c. It is narrower and shifted 3 units to the left.
d It is narrower and shifted 3 units to the right.

Answers

Transformation involves changing the position of a function.

The true statement is: (b) It is wider and shifted 3 units to the right.

The function is given as:

$\mathbf{f(x) = |x|}$

First, the function is translated right by 3 units.

So, we have:

$\mathbf{f'(x) = |x - 3|}$

Next, the function is enlarged horizontally by a factor of 0.1.

So, we have:

$\mathbf{f$

The above highlights mean that:

$\mathbf{f$ will be wider than $\mathbf{f(x) = |x|}$

Hence, the correct option is (b)

Read more about function transformations at:

brainly.com/question/13810353

Since u are solving
For f(x) u would be moving to the right being that it is a decimal times to a negative number so the answer would be B

Year 9 students from a school were asked to choose one language to study this table shows information on their choices.language number of students
french 17
german 35
itallian 38

Answers

Answer:

Step-by-step explanation:

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