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AleksandrR [38]

3 years ago

6

If using the method of completing the square to solve the quadratic equation x^2+8x-4=0 ,which number would have to be added to

"complete the square"?

1 answer:

Licemer1 [7]3 years ago

5 0

Answer:

yes

Step-by-step explanation:

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here is free ponits beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

rewona [7]

Answer:

Hi

Step-by-step explanation:

Yo, I'm doing a genius hour project, and I'd like to hear your opinion.

Just tell me in 3-5 sentences how you think about life. Then tell me what could we change to make it better. Be sure to add how would it affect everyone.

3 0

3 years ago

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Find the value of the variable that results in congruent triangles. Explain. SAS (Side, Angle, Side) or ASA (Angle, Side, Angle)

Mamont248 [21]

well, let's keep in mind that the SAS postulate, so if one Side and the Angle next to it and the following Side after the angle are equal on both triangles, both triangles are congruent. Now, we have the angle 30° with sides and 9 and 2x and sides 9 and x + 4, well, the 9's are equal, dohh, you know, if only the 2x = x + 4, we'd be golden

$2x = x + 4\implies 2x - x = 4\implies \boxed{x = 4}$

7 0

3 years ago

Lorenzo built a rectangular brick patio. He is putting a stone border around the patio. The patio is 12 feet long and 14 feet wi

anzhelika [568]

To find the perimeter of Lorenzo's patio, you need to understand that perimeter is a measurement of distance around a sided figure.

We know the side lengths are 12 feet, 14 feet, 12 feet, and 14 feet because it is a rectangle.

Add all these together to find the total distance around.

12 + 12 + 14 + 14 or (12 x 2) + (14 x 2) = 52 feet

The perimeter of Lorenzo's patio is 52 feet.

3 0

3 years ago

PLS HELP QUICK, I HAVE A TEST, more points

bezimeni [28]

Answer:

Options (1), (3), (5) and (6)

Step-by-step explanation:

Option (1)

Both the circles M and H are same in shape. Therefore, both are similar.

True

Option (2)

MH = MS = [Radii of a circle]

MH = MO + OH

MH = ME + OH [Since, MO = ME]

MH = 10 + 25 = 35 cm

Area of circle M = πr²

= π(35)²

= 1225π

Area of circle H = π(25)²

= 625π

$\frac{\text{Area of M}}{\text{Area of H}}=\frac{1225\pi }{625\pi }$

Area of M = 1.96(Area of H)

False

Option 3

OH + MS = 25 + 35

= 60 cm

True

Option 4

m∠HMS = 90°

Can't be figured out with the given informations

False

Option 5

Diameter of circle H = 2(radius)

= 2(25)

= 50 cm

True

Option 6

Circumference of circle S = 2πr

= 2π(ES)

Circumference of circle M = 2π(MS)

Ratio of the circumference of circle S and M = $\frac{2\pi (ES)}{2\pi (MS)}$

= $\frac{ES}{MS}$

True.

Options (1), (3), (5) and (6) are correct.

3 0

3 years ago

Kayla says that the point labeled C in the diagram below is the center. Raymond says that point C is the radius.

frutty [35]

Answer:

Kayla is correct The center is a fixed point in the middle of the sphere

Step-by-step explanation:

In mathematics we have certain habit of rules for notation of points, coordinates, segments, angles and so on.

Usually we denote points, by letters even more we denote with the first letter of the object we are denoting

Occasionally, we also denote segments as radius in a circle and in a sphere, with letters, that is r stands for radius, h stands for height, in most cases we denote point for capital letters ( in a segment)

When we denote radius, with small letter it should be placed at the center or over the segment we are traying to denote.

For points we only need to place the letter close to the to the point we want to denote.

Therefore Kayla is correct when says that c stand for " the center of the sphere"

8 0

3 years ago

Read 2 more answers