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2 years ago

The first three steps in determining the solution set of the system of equations algebraically are shown.

Mathematics

1 answer:

Ivenika [448]2 years ago

3 0

(2,-1), (-4,17).

Step-by-step explanation:

Equate the equation A and equation B

Convert the quadratic equation in factored form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

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

Rewrite as perfect squares

Square root both sides

Find the values of y

Substitute the value of x in the equation B

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Can anyone help for brainst and a thanks?

bekas [8.4K]

Answer:

$150.

Step-by-step explanation:

You would add to get the answer.

57 + 90 = 150.

Feel free to let me know if you need more help. :)

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2 years ago

Derive the equation of the parabola with a focus at (_5, 5) and a directrix of y = -1.

mars1129 [50]

Answer: Option D is correct.

Step-by-step explanation:

Since we have given that

focus = (-5,5)

and a directrix y= -1

Since, equation of parabola in this case will be

$(x-h)^2=4.a(y-k)$

Now, here

$y=k-a=-1\\\\\text { focus =(h,k+a)}\\\\\text{So,} k+a=5\\\\\text{ by solving these two equation , we get }\\\\a=3\text{ and } k=2$

So equation will be

$(x+5)^2=4\times 3(y-2)\\\\(x+5)^2=12(y-3)\\\\y=\frac{1}{12}(x+5)^2+2$

So, option D is correct .

4 0

2 years ago

Read 2 more answers

“the product of a number and 3 is the same as the sum of that number and sione half of a number is 8 less than the number itself

3241004551 [841]

Answer:

USE GOOGLE BEFORE COMING HERE

Step-by-step explanation:

7 0

2 years ago

A scarf needs ¾ of a yard of fabric. How many scarves can be made from 9 yards of fabric?

marissa [1.9K]

Answer:

exactly 12 !

Step-by-step explanation:

3/4 is the length need, times 12, which is the end result of scarves, equals 9, the yards of fabric !!

3/4 x 12 = 9

i hope this helped!!!!

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2 years ago

Find the perimeter of the window to the nearest hundredth.

Natalka [10]

7.71 feet is your answer.

6 0

1 year ago