Find the surface area of this rectangle prism

Answer:

(x + 3)² - 12

Step-by-step explanation:

x²+6x-3

=  x²+ 6x + 9 - 12

= (x + 3)² - 12

The form of x² - 6x + 3 can be written as (x-3)² - 6.

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We are given that;

Equation= x² - 6x + 3

Now,

To write x² - 6x + 3 in the form (x-a)²+ b, we can use the method of completing the square. This involves adding and subtracting a constant term to make the expression a perfect square trinomial. Here are the steps:

Write x² - 6x + 3 as x² - 6x + ___ - ___ + 3, leaving two blanks for the constant term.

To find the constant term, divide the coefficient of x by 2 and square it. In this case, -6/2 = -3 and (-3)² = 9. So we fill in the blanks with 9 and get x² - 6x + 9 - 9 + 3.

Factor the first three terms as a perfect square: (x - 3)² - 9 + 3.

Simplify the last two terms: (x - 3)² - 6.

Compare with the form (x-a)²+ b and identify a and b. In this case, a = 3 and b = -6.

Therefore, by the given equation the answer will be (x-3)² - 6.

Learn more about quadratic equations;

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Answer:

Where is the figure

Step-by-step explanation:

Where is the figure

Answer:

B i think

Step-by-step explanation:

I am nit sure but j think do

Answer:

9

Step-by-step explanation:

Answer:

It could be 14M.

Step-by-step explanation:

A to B is similar length, so that is why it could be 14M.

Answer:

k= 20

Step-by-step explanation:

You start with this equation:

k-16=4

Add 16 on both sides.

k=4+16

Simply.

k=20

If you want to check your answer, you can just plug 20 into where k is back into the equation:)

Hope this helps!

Hey there!

k - 16 = 4

ADD 16 to BOTH SIDES

k - 16 + 16 = 4 + 16

CANCEL out: -16 + 16 because it give you 1

KEEP: 4 + 16 because it give you the x-value

NEW EQUATION:

k = 4 + 16

k = 16 + 4

SIMPLIFY IT!

k = 20

Therefore, your answer is: k = 20

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

If 24 juice boxes=12$

Then one box=24÷12=2

One box is 2$

Step-by-step explanation:

:)

Answer:

3w - 5

Step-by-step explanation:

Break it down to small steps

product means multiply

3timesw = 3w

now the minus

3w -

and finally 5

3w - 5

Answer:

Step-by-step explanation:

As given ,

-5*(a+3) =-55

(-5*a)+(-5*3)= -55

-5a-15= -55

-5a= -55 +15

-5a = -40

a = 8

Answer:

its half of 8 so 8/2=4

Step-by-step explanation:

Answer:

4cm

Step-by-step explanation:

The diameter is double the radius of a circle.

Here, the diameter is 8cm so the radius will be half of it (8/2)=4.

Hope this helps you :)

Answer:

d=-8

Step-by-step explanation:

-8 × -4=+32 ....always remember a positive number and negative number equals a negative number and negative number times a negative number is a positive number

Answer:

-8

Step-by-step explanation:

Answer:

is it proper question I am sorry I canot understand

Answer:

6n + 19 = 29 + n

n = 2

Step-by-step explanation:

your number = n

multiplied by n by 6 (6 * n or 6n)

6n then add 19 (6n +19)

29 more than my number = 29 + n

add it all together:

6n + 19 = 29 + n

when you solve, n = 2

Answer:

-5/3

Step-by-step explanation:

To solve this just plug in 7 wherever you see an x

we have

3/(7+2)-sqrt(7-3)

3/9-sqrt(4)

.3333-2= -5/3

what do u need help with?

Step-by-step explanation:

I'm in confusion

¯\(°_o)/¯

Answer:

The cost of the t-shirt would be $19.20 with a 20% discount and the amount discounted is $4.80

Step-by-step explanation:

24*0.8 = $19.20

Answer:

Step-by-step explanation:

The discount is:

price × discount

We can substitute the discount of 20% for 0.2 and multiply to find the amount of money taken away which gives us the remaining amount or the amount you pay.

$19.20

Answer:

75720cm or 757.2m

Step-by-step explanation:

300m = 30000cm

78m & 60cm=7860cm

perimeter of rectangle = 2(length) + 2(width)

2(30000) + 2(7860) = 75720cm or 757.2m

Answer:

20

Step-by-step explanation:

Answer:

19.35?

Step-by-step explanation:

Answer:

Grams

Step-by-step explanation:

Meters is for measuring height

Litres are for measuring water

Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

5/1-3/8= 4 5/8

4 5/8- 5/8= 4

Answer:

question 5) 43

question 6) 38

question 3) 107

question 4) 82

Step-by-step explanation:

question 5 and 6 add up to 90 so 90-47=43

and questions 3 and 4 add up to 180 so, 180-73=107

qnd 52+46 =98 so 180-98=82

Answer:

1

Step-by-step explanation:

You would have to do A=lwh which is 2x1x1/2=1

Answer:

563.55

Step-by-step explanation:

85/100*663=563.55

Answer:

The answer is A

Step-by-step explanation:

Happy valentines

Answer:

Choice 2

Step-by-step explanation:

The downward sloping line has a y intercept of +1 and a slope of -2, hence its equation is y=-2x+1.  Since the shaded region includes some points on the line and above the line, we know that the relation must be >=.  Thus, one of the inequalities must be

y>=-2x+1

The upward sloping line has a y intercept of -2 and a slope of +1, hence its equation is y=x-2.  Since the shaded region includes some points on the line and below the line, we know that the relation must be <=.  Thus, the other inequality must be

y<=x-2

Answer: I think its, Algebraic expression​

Step-by-step explanation:

A mathematical phrase involving at least one variable and sometimes numbers and operation symbols.

Answer:

The answer to this question is algebraic expression.

Step-by-step explanation:

Got it right on edge 2020!!!

Hope this helps!!!