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3 years ago

What’s the slope ? I don’t understand

Mathematics

1 answer:

jarptica [38.1K]3 years ago

6 0

Answer: Slope is rise over run, or y over x. So for the first one the slope is 60/30 or 2. If you wanna find the slope between two points you would do y2-y1 over x2-x1. For example if we use the first two points which are 60/30 and 50/40, it would be 50-60 over 40-30, which gives you -10/10. That can be simplified down to -1/1. That means that you have went down one and right one on your graph. You can apply these rules to many basic slope problems. I hope this helps! :)

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Please help me with number 3. 100 points plus Brainly five stars ⭐️ and a thanks

Elis [28]

Answer:

10 and 7

Step-by-step explanation:

First you can list out numbers 1-10 and find thngs that equal 3 when subtracted. Then after you do that see if when you multiply y x 3 subtracted from x if it equals -11.

10-7 =3

10 - (7x3)

10 - 21

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2 years ago

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jonny [76]

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3 years ago

Use the like bases property to solve the equation: 16^x = 1/4 x=

gavmur [86]

Answer:-1/2

Step-by-step explanation:

16^x=1/4

(4^2)^x=4^(-1)

4^2x=4^(-1)

Base cancelled each other since they are the same

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Divide both sides by 2

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7 0

3 years ago

A recent study of 500 American males aged 18-21 found that 237 had 1 ticket in the past year, 112 had 2 tickets in the past year

Jobisdone [24]

Answer:

The expected number of tickets is 1.273

Step-by-step explanation:

Expected Value of a Discrete Probability Distribution

Given a discrete distribution with values

x={x1,x2,x3,...,xn}

And respective probabilities

p={p1,p2,p3,...pn}

The expected value EX of the entire distribution is

$EX=\sum_{i}x_i.p_i$

The recent study of American males provides an approximate distribution of probabilities based on the number of tickets they had past year, according to the following data:

237 had 1 ticket

112 had 2 tickets

17 had 3 tickets

5 had 4 tickets

1 had 5 tickets

The total number of tickets is 237+112+17+5+1=372

Taking the number of tickets as the independent variable, then

x={1,2,3,4,5}

Each probability can be found as the relative frequency of the number of tickets as follows:

$\displaystyle p_1=\frac{237}{372}=0.637$