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lyudmila [28]
3 years ago
14

Solve for x in the equation x squared minus 10 x + 25 = 35.

Mathematics
2 answers:
atroni [7]3 years ago
7 0

Answer:

x = 5 ± \sqrt{35}

Step-by-step explanation:

Given

x² - 10x + 25 = 35 ( subtract 25 from both sides )

x² - 10x = 10

Using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 5)x + 25 = 10 + 25

(x - 5)² = 35 ( take the square root of both sides )

x - 5 = ± \sqrt{35} ( add 5 to both sides )

x = 5 ± \sqrt{35}

That is the second option on list

pav-90 [236]3 years ago
5 0

Answer: x = 5 ± \sqrt{35}

Step-by-step explanation:

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How many inches are in 14 feet, 8 inches? Enter only the number. Do not include units
blagie [28]

Answer:

176

Step-by-step explanation:

14x12 = 168 + 8 = 176

8 0
3 years ago
What is the difference in the surface area of two cubes, one with edge 15 and one with an edge of 12
Lilit [14]

Remark

A cube has six sides, all of them equal. The formula for 1 side is s^2. The formula for all six = 6s^2.


Step One

Find the surface area of the larger cube.

Area = 6 *s^2

s = 15

Area = 6 *15^2

Area = 6 * 225

Area = 1350


Step Two

Find the area of the smaller cube

Area = 6s^2

Area = 6 * 12^2

Area = 6 * 144

Area = 864


Step Three

Find the difference

Area1 - Area2 = difference

1350 - 864 = 486

The difference is area = 486 units^2 <<<<< Answer


There is a slightly shorter way. Take out the common factor of 6

Difference = 6 * (15^2 - 12^2)

Difference = 6 * (225 - 144)

Difference = 6 * (81)

Difference = 486

6 0
3 years ago
Please help me immediately​
marshall27 [118]

Answer:

zero of a polynomial can be defined as the points where the polynomial become 0 as a whole.

An equation formed with variables, exponents and coefficient together with operation and an equal sign is called polynomial equation.

I hope this will help you

5 0
3 years ago
Pls help me with this
Julli [10]

Answer:

8125, im pretty sure this is right

Step-by-step explanation:

4 0
3 years ago
Arthur Jackson can run 1,500 meters in about 3 1/2 minutes. How many meters per minute is this?
Nimfa-mama [501]

(1500 meters) / (about 3.5 minutes) =

(1500/about 3.5) (meters/minute) =

<em>about 428.6 meters/minute</em>

6 0
3 years ago
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