All categories

2 years ago

Find the zeros of y = x2 - 6x- 4 by completing the square.

Mathematics

2 answers:

Schach [20]2 years ago

8 0

Answer:

x= 3 plus the square root of 13 or x= 3 minus the square root of 13.

Step-by-step explanation:

Hope this helps!

Ilya [14]2 years ago

4 0

X=+3 cuz you need to find factors of -4 to add up to -6

You might be interested in

How can you show that two objects are proportional with a table?

vredina [299]

So this is our table:

-----------------
x-values | a b c d e f |
-----------------
y-values | g h i j k l |
-----------------

You can know that the values in the table are proportional if:

$\frac{a}{g}=\frac{b}{h} =\frac{c}{i}=\frac{d}{j}=\frac{e}{k}=\frac{f}{l}$

Hope that helps :)

5 0

2 years ago

The length of a rectangle is 5 times larger than x. The width is 4 cm less than the length. The perimeter is at least 96 cm. Wha

Ede4ka [16]

We know that the perimeter of a rectangle = 2(l + w)

l = length

w = width

In our problem,

l = 5x

w = 5x - 4

Let's create an inequality to help us solve this problem.

2(5x + (5x - 4)) ≥ 96

Let's start off by simplifying the terms inside the parentheses.

2(10x - 4) ≥ 96

Distribute the 2

20x - 8 ≥ 96

Add 8 to both sides.

20x ≥ 104

Divide both sides by 20

x ≥ 5.2

Let's plug 5.2 into x for our length and width.

Length = 5x = 5(5.2) = 26 cm

Width = 5x - 4 = 5(5.2) - 4 = 26 - 4 = 22 cm

The smallest possible dimensions for the rectangle are, length = 26 cm and width = 22 cm

6 0

3 years ago

Read 2 more answers

Simplify the equation 9xy^2-11xy^2

devlian [24]

$9xy^2-11xy^2=(9-11)xy^2=-2xy^2$

3 0

2 years ago

3. Determine the values of x and y for the parallelograr<br> (3x + 15)°<br> (y +30)°<br> (3x – 15)°

nataly862011 [7]

Answer:

stupid

Step-by-step explanation:

rat

6 0

2 years ago

Which quadrilaterals do you think can be decomposed into two identical triangles using only one line?

andriy [413]

Answer:

a, b, c, d, f these all can be done with one line

6 0

2 years ago