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ryzh [129]
3 years ago
9

Write the following in slope-intercept form , when the slope is -4 and the y-intercept is 9

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
6 0

Answer:

y= -4x+9

Step-by-step explanation:

y=mx+b

mx= slope

b= y-intercept

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Find the difference (10m+3)-(4m-2)
pshichka [43]

Answer:

6m + 5

Step-by-step explanation:

3 0
3 years ago
Mike bought five items for lunch that cost a total of $4.55. Hot dogs cost $1.10 each and cookies cost $0.75 each. Which of thes
Setler79 [48]

Answer:

1.1h+0.75c=4.55---------------1

h+c=5--------------2

Step-by-step explanation:

Step one:

given data

total lunch items= 5

let hot dogs be h

and cookies be c

cost of hot dogs = $1.10

cost of cookies = $0.75

total cost = $4.55

Step two:

The linear model for the total cost is given as

4.55=1.1h+0.75c---------------1

and the model for the number of items is

h+c=5--------------2

The systems of the equation for the situation is

1.1h+0.75c=4.55---------------1

h+c=5--------------2

6 0
3 years ago
I need help form my text that is do today. But I can’t figure this one out
melamori03 [73]

Answer:

Its D thats the answer

Step-by-step explanation:

5 0
3 years ago
The times of the runners in a marathon are normally distributed, with a mean of 3 hours and 50 minutes and a standard deviation
serious [3.7K]

The probability that a randomly selected runner has a time less than or equal to 3 hours and 20 minutes is 0.16 or 16%.

<h3>What is normally distributed data?</h3>

Normally distributed data is the distribution of probability which is symmetric about the mean.

The mean of the data is the average value of the given data.

The standard deviation of the data is the half of the difference of the highest value and mean of the data set.

The times of the runners in a marathon are normally distributed, with

  • Mean of 3 hours and 50 minutes
  • Standard deviation of 30 minutes.

Refere the probabiliity table attached below. The probability of Z being inside the 1 Standard daviation of mean is 0.84.

The probability of runner selected with time less than or equal to 3 hours and 20 minutes,

P=1-0.84\\P=0.16

Thus, the probability that a randomly selected runner has a time less than or equal to 3 hours and 20 minutes is 0.16 or 16%.

Learn more about the normally distributed data here;

brainly.com/question/6587992

4 0
2 years ago
What is the amount of snow that can be placed in this globe if it is 4.7 inches wide?
zepelin [54]

Answer:

The awnswer is D. 54.3in^3

Step-by-step explanation:

7 0
3 years ago
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