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Mashcka [7]
3 years ago
14

Solve the equation x² = 5. (must show equality properties in work so I can earn full credit)

Mathematics
2 answers:
natita [175]3 years ago
8 0
X² = 5
take root to both side to clear the square

√x² = ±√5

X = ±√5
yulyashka [42]3 years ago
4 0
The awnser is c. I really hope this helps
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PLEASE HELP. I'LL GIVE BRAINLIEST.
vova2212 [387]
<h2>Answer:</h2>

The answer is 16.

<h2>Step-by-step explanation:</h2>

Since the 8x is positive, the equation  must have y as a positive number.

Let's see this!

An easy way to complete the square if you have the constants for x2 and

But not the non-variable number is to divide the x constant, and then square it.

Example:

\frac{8x}{2} \\\\4^2=16\\

The last number must be 16. Let's check it.

(x+4)^2=x^2+8x+16

6 0
2 years ago
For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 20 N acts on
jeka94

The acceleration of the object will be 10 m/s²

Step-by-step explanation:

Direct variation is a relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other

  • If y varies directly with x, then y ∝ x
  • y = k x, where k is the constant of variation

For a moving object, the force acting on the object varies directly with the object's acceleration.

Assume that the force is F and the acceleration is a

∵ F ∝ a

∴ F = k a

∵ F = 20 newtons

∵ a = 4 m/s²

- Substitute these values in the equation above to find k

∵ 20 = k (4)

∴ 20 = 4 k

- Divide both sides by 4

∴ k = 5

- Substitute the value of k in the equation

∴ F = 5 a ⇒ equation of variation

∵ F = 50 Newtons

∵ F = 5 a

∴ 50 = 5 a

- Divide both sides by 5

∴ 10 = a

∴ a = 10 m/s²

The acceleration of the object will be 10 m/s²

Learn more:

You can learn more about variation in brainly.com/question/10708697

#LearnwithBrainly

7 0
3 years ago
It is not A. or B. I will give brainliest
mars1129 [50]

Answer:

2m + 4 = 5

Step-by-step explanation:

Cross multiply.

2(m + 2) = 5 * 1

2m + 4 = 5

Answer: 2m + 4 = 5

3 0
3 years ago
Read 2 more answers
I need heelp solving plzz
Nonamiya [84]

Answer:

The anser is 5 hop this helps sorry if it is wrong

Step-by-step explanation:

3 0
3 years ago
Kinsey has a plan to save $60 a month for 16 months so that she can purchase a new television. After 11 months Kinsey has saved
kirza4 [7]

Answer:

b. Kinsey must save $72 per month to achieve her goal.

Step-by-step explanation:

<em>Goal over 16 months:</em> $60 x 16 = $960

<em>Collected after 11 months:</em> $600

  • $360 still needed
  • 5 months lefts

$360 ÷ 5 = $72

4 0
3 years ago
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