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3 years ago

Plz help me get the right answer for these I hate math -.-

Mathematics

1 answer:

Snezhnost [94]3 years ago

4 0

Answer:

The answer C. y=60x+120

Step-by-step explanation:

By using desmos, you can see the plotted points and what goes correctly into the line.

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In a home theater system, the probability that the video components need repair within 1 year is 0.02, the probability that the

earnstyle [38]

Answer:

(a) The probability that at least one of these components will need repair within 1 year is 0.0278.

(b) The probability that exactly one of these component will need repair within 1 year is 0.0277.

Step-by-step explanation:

Denote the events as follows:

A = video components need repair within 1 year

B = electronic components need repair within 1 year

C = audio components need repair within 1 year

The information provided is:

P (A) = 0.02

P (B) = 0.007

P (C) = 0.001

The events A, B and C are independent.

(a)

Compute the probability that at least one of these components will need repair within 1 year as follows:

P (At least 1 component needs repair)

= 1 - P (No component needs repair)

$=1-P(A^{c}\cap B^{c}\cap C^{c})\\=1-[P(A^{c})\times P(B^{c})\times P(C^{c})]\\=1-[(1-0.02)\times (1-0.007)\times (1-0.001)]\\=1-0.97216686\\=0.02783314\\\approx 0.0278$

Thus, the probability that at least one of these components will need repair within 1 year is 0.0278.

(b)

Compute the probability that exactly one of these component will need repair within 1 year as follows:

P (Exactly 1 component needs repair)

= P (A or B or C)

$=P(A\cap B^{c}\cap C^{c})+P(A^{c}\cap B\cap C^{c})+P(A^{c}\cap B^{c}\cap C)\\=[0.02\times (1-0.007)\times (1-0.001)]+[(1-0.02)\times 0.007\times (1-0.001)]\\+[(1-0.02)\times (1-0.007)\times 0.001]\\=0.02766642\\\approx 0.0277$

Thus, the probability that exactly one of these component will need repair within 1 year is 0.0277.

7 0

3 years ago

6k²+16k=0 x²-5x= 0 ANSWer these noeww!

pentagon [3]

Answer:

1) k = (-8)/5

2) x = 5

Step-by-step explanation:

$6 {k}^{2} + 16k = 0$

$= > 2k(3k + 8) = 0$

$= > 3k + 8 = \frac{0}{2k} = 0$

$= > 3k = - 8$

$= > k = \frac{ - 8}{3}$

${x}^{2} - 5x = 0$

$= > x(x - 5) = 0$

$= > x - 5 = \frac{0}{x} = 0$

$= > x = 5$

8 0

3 years ago

Hi there! I´m new ¿Can you help me please?

Alekssandra [29.7K]

Answer:

look below im smart and im just a seventh grader O w O

Step-by-step explanation:

2f(1.6m)

X=24

X=2*24/1.6

X=2*15

X= 30 m

4 0

3 years ago

Decide if each statement about the expression 2x−8 is true or false. Select True or False for each statement. The number 2 is no

Alex17521 [72]

2x - 8

Parts of an equation:
2 - coefficient
x - variable
8 - constant

The number 2 is not a coefficient in the expression. FALSE.
The expression has three terms. FALSE. two terms only: 2x & 8
The variable in the expression is x. TRUE
The number 2 is a constant in the expression. FALSE
The expression has one variable term. FALSE. 2x is term but it's a combination of a number and a letter. Variable term is letter only.

3 0

3 years ago

Read 2 more answers

After a car left the A station for 4 kilometers, it advanced for an hour at an average speed of 40 km/h. Find a functional relat

True [87]

The function would be f(x) = 40x + 4.

It's plus 4 because it starts counting after the 4 kilometers already happened.

It's 40x because that's the rate of change (km/h) and the x represents the hours.

f(x) basically means y, but in functions you use f(x).

Hope this helps :)

8 0

3 years ago