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OlgaM077 [116]
4 years ago
13

For a certain population, the regression equation to predict salary (in dollars) from education (in years) is y=2530x + 5200. Wh

at are the units of 2530 ? Choose the correct answer. You have only one attempt.
Mathematics
1 answer:
timofeeve [1]4 years ago
3 0

Answer:

2530 has no units

Step-by-step explanation:

In order to understand the units from a linear equation we need to understand the general equation of a line which is:

y=mx+b where:

m=slope of the line

b=y-intercept.

Comparing the given equation with the general line equation, we noticed that 2530 represents the slope of the line.

Since the slope can be obtained by:

m=(y2-y1)/(x2-x1) whatever the units are, the slope is  dimensionless, which means that 2530 has no units.

You might be interested in
Print Version
san4es73 [151]

Answer:

$9450

Step-by-step explanation:

We will use compound interest formula:

F=P(1+r)^t

Where

F is future amount [what we want to figure out]

P is present amount [9000]

r is rate of interest [since we want for 6 months, the annual interest divided by 2 is r. So r = 10/2 = 5% or 0.05]

t is the time [ the time period is for 6 months so t = 1 since we already converted the interest rate to 6 month chunk]

Putting in formula, we get:

F=P(1+r)^t\\F=9000(1+0.05)^1\\F=9000(1.05)\\F=9450

6 0
3 years ago
Y wants to buy three shirts which war originally priced $49.96 each the store will discount the price of the third shirt and the
Tanya [424]

The main cost will be 142.69.


5 0
3 years ago
Mark mailing a package that weighs 6 pounds. he adds a book to that package that weighs 2 pounds what is the percent increase in
Nimfa-mama [501]
Your Question:
Mark mailing a package that weighs 6 pounds. he adds a book to that package that weighs 2 pounds what is the percent increase in the weight of the package?
My Answer:
Two is one-third of six, 
One divided by Three is 0.3333... ( etc. )  
0.3333...  • 100 = 33.3333... or <span>33.33%
Hope I helped
♥ James</span>
4 0
3 years ago
What do I do 900m = 2.700​
Novay_Z [31]

Step-by-step explanation:

given

900m = 2.700

m = 2.700 / 900

m = 0.003

Hope it will help :)

6 0
3 years ago
Lenny bought a motorcycle. He paid 12.5% in tax. The tax added 1437.50 to the price of the motorcycle what was the price of the
just olya [345]

Answer:

Amount of motorcycle = $11,500

Step-by-step explanation:

Given:

Tax rate = 12.5 % = 0.125

Amount of tax = $1,437.50

Find:

Amount of motorcycle

Computation:

Amount of motorcycle = [Amount of tax ] / Tax rate

Amount of motorcycle = [1,437.50] / 0.125

Amount of motorcycle = $11,500

4 0
3 years ago
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