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3 years ago

6. Write an equation of a line parallel to y = 3x + 9 and goes through the point (-1,5).

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

4 0

Answer: The equation parallel to the line is y=3x+8

Step-by-step explanation: Parallel lines have the same gradients, wr have a gradient for the above line which 3. The standard formula for the linear equation is y=mx+c

We have to calculate c since we have x and y.

y=mx+c

5= 3(-1)+c

c=8

The equation become y=3x+8

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What is 27/9?????????? help :) plz

Makovka662 [10]

Answer:

it is 3

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is x if a line passes though (2,5) ( x,3)

antoniya [11.8K]

Answer:

x = - 2

Step-by-step explanation:

Givens

(2,5)

(x,3)

m = 1/2

Formula

m = (y2 - y1)/(x2 - x1)

Solution

y2 = 3

y1 = 5

x2 = x

x1 = 2

1/2 = (3 - 5)/(x - 2) Cross multiply

1*(x - 2) = 2 (-2) Combine and remove the brackets.

x - 2 = - 4 Add 2 to both sides

x = - 4 + 2

x = - 2

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2 years ago

A number cube with faces labeled from 1 to 6 was rolled 20 times. Each time the number

kari74 [83]

Answer:

0.4

Step-by-step explanation:

These are the relative frequencies of each face (data are missing in the text of the problem):

Number Showing on Top Face Frequency

1 0

2 3

3 3

4 6

5 3

6 5

The probability to obtain a certain number when throwing the dice is given by

$p(x_i)=\frac{f_i}{\sum f}$

where

$f_i$ is the relative frequency of the number $x_i$ to occur

$\sum f$ is the sum of the relative frequencies

Here the sum of the frequencies is:

$\sum f=0+3+3+6+3+5=20$

For number 5 here, we have:

$f_5 = 3$ (from the table)

So the probability of getting a 5 is

$p(5)=\frac{3}{20}$

For number 6 here, we have

$f_6=5$

So the probability of getting a 6 is

$p(6)=\frac{5}{20}$

So the probability to obtain either a 5 or a 6 in the next rolling is:

$p(5\cup 6)=p(5)+p(6)=\frac{3}{20}+\frac{5}{20}=\frac{8}{20}=0.4$

6 0

3 years ago

Find the median<br> of 38,37,39,41,38,42,48,50,54

zhuklara [117]

Median = 41

hope that helps

8 0

3 years ago

Find the missing factor 5y^2-4y-9=(y+1)

disa [49]

Answer:

y = {1,2}

Step-by-step explanation:

5y^2 - 4y - 9 = y + 1

5y^2 - 5y - 10 = 0

5(y^2 - y - 2) = 0

5 (y - 2) (y - 1) = 0

y = {1,2}

Please mark for Brainliest!! :D Thanks!!

For more information, please comment below and I'll respond asap!!

8 0

3 years ago