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3 years ago

I just need a run down on how to find a linear equation from two points I'll give Brainiest

1 answer:

4 0

Given the graph of a line, you can determine the equation in two ways, using slope-intercept form, y=mx+b y = m x + b , or point-slope form, y−y1= m(x−x1) y − y 1 = m ( x − x 1 ) . The slope and one point on the line is all that is needed to write the equation of a line.

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A restaurant has 4 appetizers, 5 entrees and 2 desserts. How many different meal combinations could you order?

vovangra [49]

Step-by-step explanation:

1.) Firstly, you need to count out how many things there are. 4 app, 5 entrees, 2 desserts. This makes 11 different things

2.) for 11 numbers there can be 9 ways for each number for 1st nine places since 0 can't be the fist figure and next two are reciprocated from 10 numbers. Therefore 10!/2!

3.)So 99 combinations have 10!/2! Permutations hence total ways are 99*10!/2!

6 0

4 years ago

Mr. McDonald offers the tractor salesman $2000 for a used tractor. This offer includes 6% sales tax. If the salesman accepts the

mariarad [96]

The salesman will get $1,880 with out the 6% tax

7 0

4 years ago

Read 2 more answers

xP(x)00.2510.0520.1530.55Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal pl

Nookie1986 [14]

The Solution:

Given:

Required:

Find the standard deviation of the probability distribution.

Step 1:

Find the expected value of the probability distribution.

$E(x)=\mu=\sum_{i\mathop{=}0}^3x_iP_(x_i)$ $\begin{gathered} \mu=(0\times0.25)+(1\times0.05)+(2\times0.15)+(3\times0.55) \\ \\ \mu=0+0.05+0.30+1.65=2.0 \end{gathered}$

Step 2:

Find the standard deviation.

$Standard\text{ Deviation}=\sqrt{\sum_{i\mathop{=}0}^3(x_i-\mu)^2P_(x_i)}$ $=(0-2)^2(0.25)+(1-2)^2(0.05)+(2-2)^2(0.15)+(3-2)^2(0.55)$ $=4(0.25)+1(0.05)+0(0.15)+1(0.55)$ $=1+0.05+0+0.55=1.60$

Thus, the standard deviation is 1.60

Answer:

1.60

8 0

2 years ago

Betty walks her neighbor's dog for $25 a week. If she walks the dog twice a day, how much does she make each time she walks the

abruzzese [7]

Answer:

$350

Step-by-step explanation: There are 7 days in a week- if she walks the dog two times in a day, that would be 14 times $25. The answer would be $350.

3 0

3 years ago

Read 2 more answers

A car travel 35 miles on 3 gallons of gasoline. How many gallons of gasoline will the car need to travel 150 miles?

Harman [31]

Answer:

12.857

Step-by-step explanation:

. you divide 3 by 35 in order to find out how many gallons are used in a mile

. then multiply the number you get by 150 because the number you get is equal to 1 mile and u are finding for 150 miles

. lastly you round your answer (optional) ( i rounded to 3 dp's)

8 0

3 years ago