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LenKa [72]
3 years ago
14

Profit or loss. Jim bought 30 roses for $3 each. He sold the roses for $4 each. did Jim have a profit or a loss? How much is his

profit or loss?
Mathematics
1 answer:
Anit [1.1K]3 years ago
7 0

Answer:

Profit by $30

Step-by-step explanation:

A one dollar difference means he made how much product he had. in this case, 30

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What is the solution for the equation a + 8/3 equal 2/3​
zloy xaker [14]

Answer:

a = -2

Step-by-step explanation:

a + 8/3 = 2/3

a = 2/3 - 8/3

a = -6/3 = -2

8 0
3 years ago
Read 2 more answers
If x has a mean of 17.2 g and a standard division of 14.0 g and y has a mean of 23.5 g and a standard division of 16.4 g and the
dimulka [17.4K]

The least squares regression line is y=0.6831x+11.25

Step-by-step explanation:

LSRL is the the Least Squares Regression Line.The formula for regression line is y=mx+b where m is the slope of the line and b is the y-intercept value of the line.

First find the slope, m of the line from the means and standard deviations given

x has a mean of 17.2 g and a standard deviation of 14.0 g

y has a mean of 23.5 g and a standard deviation of 16.4 g

The correlation coefficient in both cases is 0.83, hence the slope m is given by;

m=r(Sy/Sx) where m is the slope of the line, Sy is standard deviation of y values, Sx  is standard deviation of x values and r is the correction coefficient.

m= 0.5 * 23.5/17.2 =0.6831

Find the value of b, the y-intercept

b=Y-mX where X and Y are the mean values for x and y respectively

b=23.5-0.6831*17.2

b=23.5-11.75=11.25

The LSRL is y=0.6831x+11.25

Learn More

Least Squares regression Line : brainly.com/question/4090838

Keyword : standard deviation, least square regression line

#LearnwithBrainly

3 0
3 years ago
Corey flying a kite with 105 meters of string.His string makes an angle of 42 degrees with the level ground. How high is the kit
mafiozo [28]

<u>Given</u>:

Given that Corey is flying a kite with 105 meters of string.

The string makes an angle of 42° with the ground level.

We need to determine the height of the kite.

<u>Height of the kite: </u>

The height of the kite can be determined using the trigonometric ratio.

Thus, we have;

 sin \ \theta=\frac{opp}{hyp}

From the given data, the values are  \theta=42^{\circ}, opp = h (height of the kite) and hyp = 105 meters.

Substituting the values, we get;

sin \ 42=\frac{h}{105}

Multiplying both sides of the equation by 105, we get;

sin \ 42 \times 105=h

0.669 \times 105=h

        70.245=h

Rounding off to the nearest meter, we get;

h=70

Thus, the height of the kite is 70 meters.

8 0
3 years ago
Find the second derivative for y=e^10x+y
vesna_86 [32]

Answer:

10 e ^10 x

Step-by-step explanation:

Find the derivative using the chain and power rules.

3 0
3 years ago
You make $11.29 per hour and worked 26 hours last week. They took out 5.2% for
sashaice [31]
Your answer would be 56
5 0
2 years ago
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