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Andre45 [30]
3 years ago
11

2: Which equation does not belong with the other three? Explain. Thank you so much in advance.

Mathematics
2 answers:
Shkiper50 [21]3 years ago
5 0

y = x² + 6

the equation of a line in slope-intercept form is

y = mx + c ( m is the slope and c the y-intercept )

y = 0.5x - 0.2, y = 4x + 3 and y = \frac{3}{4} x + \frac{1}{3}

are all in slope- intercept form and represent equations of straight lines

y = x² + 6 is not in this form and is not a straight line equation.

In fact it is the equation of a parabola


zmey [24]3 years ago
4 0

Answer:

y=x² +6

Step-by-step explanation:

This is the only 2nd-degree equation in the group: y = x² + 6. The others are linear equations.

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A grocer bought 25 bags of flour from a wholesaler. He marked up the
qwelly [4]

Answer:

$ 1.50 x 25= 37.50

Step-by-step explanation:

Subtract that from $ 87.50 you get remainder $ 50.00.

Therefore grocer paid $ 50.00 for 25 bags. $ 50.00 divided by 25= $ 2.00 per bag.

8 0
3 years ago
There are n machines in a factory, each of them has defective rate of 0.01. Some maintainers are hired to help machines working.
frosja888 [35]

Answer:

a) 1 - ∑²⁰ˣ_k=0 ((e^-λ) × λ^k) / k!

b) 1 - ∑^(80x/d)_k=0 ((e^-λ) × λ^k) / k!

c) ∑²⁰ˣ_k=0 (3^k)/k! = 0.99e³

Step-by-step explanation:  

Given that;

if n ⇒ ∞

p ⇒ 0

⇒ np = Constant = λ,  we can apply poisson approximation

⇒ Here 'p' is small ( p=0.01)

⇒ if (n=large) we can approximate it as prior distribution

⇒ let the number of defective items be d

so p(d) = ((e^-λ) × λ) / d!

NOW

a)

Let there be x number of repairs, So they will repair 20x machines on time. So if the number of defective machine is greater than 20x they can not repair it on time.

λ[n0.01]

p[ d > 20x ] = 1 - [ d ≤ 20x ]

= 1 - ∑²⁰ˣ_k=0 ((e^-λ) × λ^k) / k!

b)

Similarly in this case if number of machines d > 80x/3;

Then it can not be repaired in time

p[ d > 80x/3 ]

1 - ∑^(80x/d)_k=0 ((e^-λ) × λ^k) / k!

c)

n = 300, lets do it for first case i.e;

p [ d > 20x } ≤ 0.01

1 - ∑²⁰ˣ_k=0 ((e^-λ) × λ^k) / k! = 0.01

⇒ ∑²⁰ˣ_k=0 ((e^-λ) × λ^k) / k! = 0.99

⇒ ∑²⁰ˣ_k=0 (λ^k)/k! = 0.99e^λ

∑²⁰ˣ_k=0 (3^k)/k! = 0.99e³

8 0
2 years ago
If I needed to write in this format (A U B) how would i write it
MAXImum [283]

Answer:

n(AUB)=n(A)+n(B)–n(AnB)

n(AUB)=n⁰(A)+n⁰(B)+n(AnB)

Step-by-step explanation:

This is the formula i have learned. Hope this will help u. U can use them according the question type.

7 0
3 years ago
Heres the picture, thank you!
Arte-miy333 [17]
Leg * /2 = hypotenuse
Hypotenuse divided by /2 = leg

12 divided by /2

Rationalize denominator:
12 * /2 divided by by /2 * /2

Simplify denominator:
12 * /2 divided by 2

Simplify:
6 * /2 or 4.24

Both x and y because it’s a 45-45-90 triangle
7 0
3 years ago
Read 2 more answers
M-15=9 inverse operation
zheka24 [161]

Answer: 24

Step-by-step explanation:

m - 15 + 15 = 9 + 15

m = 24

6 0
2 years ago
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