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Rzqust [24]
3 years ago
14

PLS HELP DUE IN 1 HOUR WILL GIVE BRAINLIEST 5 STARS AND A THANKSSSS !

Mathematics
2 answers:
melomori [17]3 years ago
5 0

Answer:

x=-15

Step-by-step explanation:

8+9.8x+9=3.8x-16+3.8x

8+9=17

17+9.8x=7.6x-16

   -7.6x  -7.6x

17+2.2x=-16

-17 .          -17

-16-17= -33

2.2x=-33

/2.2    /2.2

x=-15

JulsSmile [24]3 years ago
4 0

Answer:

15

Step-by-step explanation:

33=9.8x-7.6x

33=2.2x

33/2.2=x

15=x

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Help me with find the slope PLEASEEEE I NEED HELPP
dangina [55]

Answer:

y=-1

x=-3

Step-by-step explanation:

4 0
3 years ago
Accountants at the Tucson​ firm, Larry​ Youdelman, CPAs, believed that several traveling executives were submitting unusually hi
77julia77 [94]

Answer:

a) Y= 90 +46.50(5) +0.35 (340) =441.50

b) The accountant should not question the voucher as the request is much higher than expected.

c) We can add the following variables

d) The percentage of variation in the trip cost that can be explained by the model​ = (0.64)^2 =0.4096 or 40.96%

A. Type of travel (air/car)

B. Gender of the executive (male/female)

The last option is not too important since we are analyzing the traveling executives not the type of business

Step-by-step explanation:

Part a

For this case we have the multiple regression model given by:

Y= 90 +46.50 x_1 +0.35 x_2

Where x_1 represent the number of days on the road and x_2 the distance traveled in miles.

And we want to find the expected amount from a 340​-mile trip that took her out of town for 5 ​days, so we just need to replace x1= 5 and x2=340 and we got:

Y= 90 +46.50(5) +0.35 (340) =441.50

Part b

The expected value taking in count that x1 = 5 and y = 340 is:

Y= 90 +46.50(55) +0.35 (340) =441.50

And the difference from the obtained value is : 685-441.50=243.5

So then the correct answer would be:

The accountant should not question the voucher as the request is much higher than expected.

Part c

We can add the following variables

A. Type of travel (air/car)

B. Gender of the executive (male/female)

The last option is not too important since we are analyzing the traveling executives not the type of business

Part d

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

The coefficient of determination "is a measure used in statistical analysis that assesses how well a model explains and predicts future outcomes. It is indicative of the level of explained variability in the data set".

The percentage of variation in the trip cost that can be explained by the model​ = (0.64)^2 =0.4096 or 40.96%

6 0
3 years ago
Write an appropriate direct variation equation if y = 45 when x = 5.
Firdavs [7]
45×5 or 45÷5 i hope this helps if it dont im so so very very sorry for you
4 0
3 years ago
please actually look at the picture and do it correctly i need the correct answers i'll mark brainliest if you are correct
Nikolay [14]

Answer:

12/14 to 18/w

Step-by-step explanation:

the w would equal 21 (incase you needed it) since the unit rate is 1.5

7 0
3 years ago
Read 2 more answers
Un círculo tiene un radio de 5 cm. ¿Cuántos <br><br>centímetros mide su circunferencia?
denpristay [2]

Answer:

10\pi[/tex]

Step-by-step explanation:

Circunferencia de un círculo = Pi veces diámetro

como el diámetro es igual a la mitad del radio, sabemos que si multiplicamos el radio por dos obtendremos el diámetro del círculo. Por lo tanto, 5 veces 2 = 10. Ahora hacemos 10 veces pi. El cual es 10 pi o 31.4159

Circumference of a circle = Pi times diameter

since the diameter is equal to half the radius, we know that if we multiply the radius by two we will obtain the diameter of the circle. Therefore, 5 times 2 = 10. Now we do 10 times pi. Which is 10 pi or 31.4159

8 0
3 years ago
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