All categories

3 years ago

Find the slope based on the date below x: -4, 0, 4 8 y: 3, 8 13 18 HELPPP QUICKK PLZZ

Mathematics

1 answer:

vekshin13 years ago

7 0

Answer:

The slope is $\frac{5}{4}$

Step-by-step explanation:

Slope of a dataset:

The slope of a dataset, having two points, is given by the change in y values divided by the change in x values

In this question:

Two points:

x = 0, y = 8

X = 4, y = 13

The slope is:

$m = \frac{13 - 8}{4 - 0} = \frac{5}{4}$

The slope is $\frac{5}{4}$

You might be interested in

What is 6 x 1.11?<br> Give your answer in pounds.

blsea [12.9K]

Answer:

Step-by-step explanation:

6.66 pounds is the correct answer

5 0

3 years ago

Kerille is reading a book at the rate of 4.5 pages per minute. What ordered pair on a graph of his reading rate would represent

viva [34]

This is a linear equation y = mx, where:
m= slope or reading rate:
x = the number of minutes
y = the number of pages read.

So the equation becomes: y = 4.5.x
How many minutes it will take to read 90 pages (y):
90 = 4.5.x or x = 90/4.5 and x = 20 minutes
So the ordered pair will be (20,90)

5 0

4 years ago

the completion times for three runner in a 100-yard dash are 9.75 seconds,9.7seconds,and 9.675 seconds. which is the winning tim

siniylev [52]

Its comparing least times, so 9.675 would be the winning time.why?you ask.well, change all the decimals to the thousandths(9.750,9.700,9.675). now you could see which is the least.

7 0

3 years ago

A police officer wants to know the proportion of crimes that are burglaries within the last five years. She randomly selects 40

svlad2 [7]

Answer:

a. Yes

See explanation below.

Step-by-step explanation:

Assuming that if the question is if we can use the normal approximation for the true proportion.

For this case we have n = 40 and p = 0.3 (probability of success)

We need to check some conditions:

1) Random sample : This condition is satisfied since the problem says that she randomly select 40 records

2) $n \hat p = 40*0.3 =12 \geq 10$

$n(1-\hat p)= 30 *(1-0.3) = 28 \geq 10)$

3) 10% condition: the random sample is assumed to be less than 10% of the original population size (assumed)

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{\hat p(1-\hat p)}{n}})$

So then as we can see the normal approximation for this case makes sense since we have all the 3 conditions satisfied so then the answer would be:

a. Yes

7 0

3 years ago

ok I know this is easy to graph but I just want to know what they mean about describing a rule. Fred family already has two dogs

zhannawk [14.2K]

The describing the rule means to explain how they get to the next result then the next result then the next it is what has to happen to get to the next answer ... I hope this helps !! :)

3 0

3 years ago