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3 years ago

X^2 + 10x = 0 How do I solve for a completed square ?

Mathematics

2 answers:

sasho [114]3 years ago

8 0

Answer:

x = 0 x = -10

Step-by-step explanation:

First, use the AC method to figure out, what times what equals 0 and what adds up to equal 10, which would be 0 and 10.

Secondly, you would factor it out and be with

(x + 0)(x +10)=0

Third, you would set each one equal to 0

x + 10 = 0 x + 0 = 0

Solve from there to get your two x's

x = 0 and x = -10

Mekhanik [1.2K]3 years ago

6 0

Answer:

12x=0

Step-by-step explanation:

x=0 because it is

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Help PLEASE im stucckkkk!!!

noname [10]

Answer:

Surface area of the cube = $150\ cm^2$

Step-by-step explanation:

Given shape in figure 1:

Cube with edge length = 5 cm

To find the surface area of the cube.

Solution:

The surface area of a cube is given by the formula:

$Surface\ Area = 6a^2$

where $a$ represents the length of the edges of the cube.

For the given cube $a=5\ cm$

Plugging $a=5\ cm$ in the formula to find the surface area of the cube.

$Surface\ Area = 6(5)^2$

∴ $Surface\ Area = 6\times 25 = 150\ cm^2$

8 0

3 years ago

Hiyaa there ;)

ycow [4]

Originally, the diameter was 110 m, so the radius was 55 m. To get the area, you square the radius and multiply by π. That's 55^2 * π, making the original area 3025π m^2.

After, the diameter decreased to 107 m, making the radius 53.5 m. Again, you square the radius and multiply by π, making the new area 2862.25π m^2.

Subtract the 2862.25π from 3025π, giving you a total reduction of 162.75π square meters.

Rounded to the nearest hundredth, that's 511.29 square meters.

5 0

3 years ago

3. A fence is made up of eight 8 5/7-foot sections. How long is the fence? Write your answer as a mixed number in lowest terms.

rewona [7]

Answer:

Step-by-step explanation:

3)A fence is made up of eight 8 5/7-foot sections. This means the total number of feet's is 8 × 8 5/7. Expressing 8 5/7 as improper fraction, it will be 61/7 feet's

The total length of the fence =

8 × 61/7 = 488/7 feet's

Expressing as mixed fraction, it becomes

69 5/7 feets

4) Cynthia spent 3/4 of her time at the gym on the stair machine. She spent a total of 21 3/4 minutes on the stair machine. This means that the time she spent on the gym is 3/4 × 21 3/4 .

Converting 21 3/4 to improper fraction, it becomes 87/4

The time she spent on the gym

= 3/4 × 87/4 = 261/16

= 16 5/16 minutes

5) On Monday, Ryan jogged 1 ½ miles in ¼ hour. On Wednesday he jogged 2 1/3 miles in 1/3 hour. Converting to improper fractions,

the miles ran on Monday= 1 ½ miles = 3/2 miles

the miles jogged on wednesday = 2 1/3 miles = 7/3 miles

How much farther did Ryan jog on Wednesday than on Monday? This would be 7/3 - 3/2

= 5/6 miles

6) One requires 2/3 cup of flour, another requires 7/8 cup of flour, and the third require 3/4 cup of flour.

Total amount of flour that Josh will use is

2/3 +7/8 +3/4 = (16+21+18)/24

= 55/25 = 2 7/25 cups of flour

5 0

3 years ago

Can someone help me with this I’m confused

Setler79 [48]

Answer:B

Step-by-step explanation:

The question is saying that X has to be less than 4 because of the greater sign so the answer has to be less that 4 since the inly answer that is less that 4 is 0 that is your answer

6 0

3 years ago

(GEOMETRY HELP) Given right triangle JKL, what is the value of cos(L)?

Evgesh-ka [11]

The answer is 5
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13

6 0

4 years ago

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