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3 years ago

PLEASE PLEASE PLEASE HELP, ILL GIVE 98 POINTS ( show your work)

Mathematics

2 answers:

vesna_86 [32]3 years ago

8 0

Answer:

Step-by-step explanation:

The points given are: (1,-4), (7,-7), (13,-10), (19,-13)

They line up to a straight line with slope:

((-4)-(-7))/(1-7) = 3/-6 = -1/2

The equation in point-slope form is

(y-(-4)) = -1/2(x-1)

y+4 = -1/2(x-1)

A is the right answer.

VLD [36.1K]3 years ago

3 0

Answer:

Step-by-step explanation:

there is a linear relationship

from the table, x changes by +6, y changes by -3 every time

so that means the slope is constant i.e. its a straight line

slope=(y2-y1)/(x2-x1)=-3/6

= -1/2

take the 1st pt, ( 1, -4 )

(y-(-4)) = slop * (x-1)

y+4 = -1/2*(x-1)

ans is A

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taurus [48]

Answer:

Step-by-step explanation:

49 - 3 + 72/2

= 46 + 36

= 82

7 0

3 years ago

Read 2 more answers

Hannah mixed 6.83 lb of almonds with 3.57 lb of peanuts.After filling up 6 bags that were the same size with the mixture, she ha

Mekhanik [1.2K]

Answer:

0.485 lb

6.83 lb - 3.57 lb = 3.26 lb

3.26 lb - 0.35 lb = 2.91 lb

2.91 lb / 6 = 0.485 lb

3 0

2 years ago

Read 2 more answers

A communications channel transmits the digits 0 and 1. However, due to static, the digit transmitted is incorrectly received wit

m_a_m_a [10]

Answer:

The probability that the message will be wrong when decoded is 0.05792

Step-by-step explanation:

Consider the provided information.

To reduce the chance or error, we transmit 00000 instead of 0 and 11111 instead of 1.

We have 5 bits, message will be corrupt if at least 3 bits are incorrect for the same block.

The digit transmitted is incorrectly received with probability p = 0.2

The probability of receiving a digit correctly is q = 1 - 0.2 = 0.8

We want the probability that the message will be wrong when decoded.

This can be written as:

$P(X\geq3) =P(X=3)+P(X=4)+P(X=5)\\P(X\geq3) =\frac{5!}{3!2!}(0.2)^3(0.8)^{2}+\frac{5!}{4!1!}(0.2)^4(0.8)^{1}+\frac{5!}{5!}(0.2)^5(0.8)^0\\P(X\geq3) =0.05792$

Hence, the probability that the message will be wrong when decoded is 0.05792

4 0

3 years ago

Linear equation: -1

Anika [276]

Answer:

The right answer is:

the addition property of equality and then the division property of equality

Step-by-step explanation:

Given equation and steps to solve it are:

Step 1: –3x – 5 = 13

Step 2: –3x = 18

Step 3: x = –6

In step two, -5 has to be removed from left hand side of the equation so additional property of equality will be used i.e. adding 5 on both sides

Similarly in the third step, to remove -3 with x , division property of equality will be used i.e. dividing both sides by -3

Hence,

The right answer is:

the addition property of equality and then the division property of equality

6 0

3 years ago

Read 2 more answers

g Two teams compete in the NBA (National Basketball Associa- tion) championshipseries. The team who wins four games out of seven

Firlakuza [10]

Answer: The required probability is 0.32.

Step-by-step explanation:

Since we have given that

Probability of winning team A over B = 0.7

Probability of losing team A over B = 0.3

Number of matches = 7"

So, using the "Binomial distribution" :

We get that

$P(X=5)=^7C_5(0.7)^5(0.3)^2=0.32$

Hence, the required probability is 0.32.

4 0

3 years ago