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nadya68 [22]
3 years ago
14

Given the equation 2x +4 = 4x -2, select the reasoning that correctly solves for x. A.add 2, subtract 2x, then divide by 2. B.ad

d 2, subtract 4x, then divide by -2. C. subtract 4, subtract 2x, then divide by -2. D. subtract 4, subtracts 4x, then divide by 2.
Mathematics
2 answers:
Over [174]3 years ago
8 0

Answer: A ) add 2 , subtract 2 x, then divide by 2

Anestetic [448]3 years ago
5 0
2 x + 4 = 4 x - 2
2 x + 4 + 2 = 4 x - 2 + 2
2 x + 6 = 4 x
2 x - 2 x + 6 = 4 x - 2 x
6 = 2 x
6 : 2 = 2 x : 2
x = 3
Answer: A ) add 2 , subtract 2 x, then divide by 2
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I need help. Whats 50(3)^20?
Alex

Answer:

174339220050

Step-by-step explanation:

50(3^20)

=(50)(3486784401)

=174339220050

8 0
3 years ago
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A company wants to evaluate its attrition rate, in other words, how long new hires with the company. Over the years, they have e
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Answer:

2.) 0.10 (3.) 0.10 (4.) 2.43

Step-by-step explanation:

Given that:

x p(x)

0 0.12

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2 0.30

3 0.15

4

5 0.10

6 0.05

X : __0__ 1 ___ 2 ___ 3 _____ 4 ____ 5 ____ 6

p(x):0.12_0.18_0.30_0.15__0.10___0.10 ___0.05

Σ of p(x) = 1

(0.12 + 0.18 + 0.30 + 0.15 + x + 0.10 + 0.05) = 1

0.9 + x = 1

x = 1 - 0.9

x = 0.1

2.)

P(x = 4) = 0.10

3.)

P(x = 5) = 0.10

4.)

Σ(x * p(x)) :

(0*0.12) + (1*0.18) + (2*0.3) + (3*0.15) + (4*0.1) + (5*0.1) + (6*0.05) = 2.43

7 0
2 years ago
Help asap, please! <3
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Answer:

a = 9

Step-by-step explanation:

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(2a + 8 - 5a + 15)/10 = 5

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5 0
2 years ago
Plz help ...............................
soldier1979 [14.2K]

Answer:

It is the right-angled triangle.

Step-by-step explanation:

According to the Pythagorean theorem, a^{2}+b^{2}=c^{2}, which c is the longest side of the triangle.

So, 27^{2}+36^{2}=45^{2} if the triangle is right angle.

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∵LHS=RHS

∴It is a right-angled triangle.

3 0
3 years ago
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What is the factored form of x2 − 4x − 5?
exis [7]

Answer:

\large\boxed{x^2-4x-5=(x+1)(x-5)}

Step-by-step explanation:

\text{The factored form:}\\\\ax^2+bx+c=a(x-x_1)(x-x_2)\\\\x_1,\ x_2-the\ zeros\\==============================\\\\\text{We have}\ x^2-4x-5:\\\\x^2-4x-5=x^2+x-5x-5=x(x+1)-5(x+1)\\\\x^2-4x-5=(x+1)(x-5)

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