Answer:
275
Step-by-step explanation:
Pharmex is a chain of drugstores that operate around the country. To see how effective its advertising and other promotional activities are, the company has collected data from 50 randomly selected metropolitan regions. In each region, it has compared its own promotional expenditures and sales to those of the leading competitor in the region over the past year. There are two variables: "Promote" reflects Pharmex’s promotional expenditures as a percentage of those of the leading competitor, and "Sales" reflects Pharmex’s sales as a percentage of those of the leading competitor. A portion of the data appears below. Show all work.
Region Promote Sales Region Promote Sales Region Promot Sales
1 77 85 21 103 112 41 100 94
2 110 103 22 95 96 42 96 81
3 110 102 23 103 93 43 88 92
4 93 109 24 89 97 44 109 108
5 90 85 25 97 92 45 109 103
a. Using Excel, create a scatterplot of the data. What do you observe? What type of relationship, if any, is apparent from the scatterplot?
b. Insert a trendline (click on the scatterplot, then click the Layout tab, and choose Trendline). What type of trendline seems to fit best?
c. Under "More Trendline Options," select "Display Equation on chart" and "Display R-squared value on chart." What do you see? What do these numbers mean?
Answer:
Positive relationship exists
Linear trend line
R² = 0.3522
Step-by-step explanation:
Given the data :
Promote (X) :
77
110
110
93
90
103
95
103
89
97
100
96
88
109
109
Sales (Y) :
85
103
102
109
85
112
96
93
97
92
94
81
92
108
103
A.) From the resulting plot, tbe slope of the graph is positive, hence, we can conclude that there exist a positive relationship between the variables 'promote' and 'sale'.
The linear trend line gives the best fit for the data with a correlation Coefficient, R value of 0.5935
The R² value is 0.3522. R² is the Coefficient of determination which gives the percentage of explained variation. For this data, about 35% of variation in sales is given by the best fit line.
I need help I don’t understand
Someone please help me answer this!!
Answer:
[tex]b^{4}[/tex]Step-by-step explanation:
b^10 / b^6 = b^10-6 = b^4
Hope that helps!
Rhonda is painting four pictures on paper. She has 1/8 of a gallon of paint to paint all the pictures. How much paint will she use for each painting if she uses the same amount of paint on each
Answer:
1/32
Step-by-step explanation:
To determine the amount of paint she would use for a picture, divide the total gallon of paint by the number of pictures
Paint she would use for one painting = total gallons of paint / number of pictures
1/8 ÷ 4
= 1/8 x 1/4
= 1/32
Please help solve for x
9514 1404 393
Answer:
x = 22.5
Step-by-step explanation:
The angle bisector divides the triangle sides proportionally.
x/30 = 24/32
x = 30(24/32)
x = 22.5
plz help!!!!!!!!!!!!
convert 3245ml to liters
Answer:
3.245L
Step-by-step explanation:
3245÷1000 = 3.245L
Solve the system of equations using the linear combination method.
ſc+d_17
Tc-d-3
Enter your answers in the boxes
C
d
Answer: Please rewrite your question or send a pic. It is not clear what you are asking.
Step-by-step explanation:
Of the 60 books on a bookshelf,24 are non-fiction.what percent of the books are non fiction.
fiction?
At Sunshine Middle school,60% of 800 students participate in music. How
students participate in music.
Answer:
75%
Step-by-step explanation:
What is the probability of rolling a 4, 5 or 6 on a die?
1/36
2/12
1/2
6/9
Principal, $2000; Annual interest rate, 5.3%; time, 5 years
Help me please:) you will get 16 points. Help with number 5
Answer:
you would add a /1 under the 7 so it would be 7/1
Step-by-step explanation:
Answer:
84/12
Step-by-step explanation:
since 7 is a whole, you need to make it a improper fraction so its easier to subtract. We need to do this by making sure the denominator stays the same which is 12.Then do 7x12. you get 84, so 84/12. Then its easier to solve.
Zander read 13 3/4pages in 1/4 of an hour. Sydney read 43 1/3 pages in 2/3 of an hour. At these rates, would Zander or Sydney read more pages in 1 hour?
(HELP FASTTT
equation of (8,-8) (-5,-8)
Answer:
y = - 8
Step-by-step explanation:
The equation of (8,-8) (-5,-8) is y = - 8
Answer:
0
Step-by-step explanation:
(8,-8) (-5,-8)
(8 x -5) ( 8 x -8) (-8 x -5)(-8 x -8) = ?
-40 - 64 + 40 + 64 = 0
In the Special Right Triangle below, solve for the value of y. Y = _____ (keep your answer in simplest radical form)
Options
5
5√2
10
10√2
Answer:
Value of Y = 5√2 units
Step-by-step explanation:
Given:
Perpendicular = X
Base = Y
Hypotenuse = 10
Find:
Value of Y
Computation:
Cos θ = Base / Hypotenuse
Cos 45 = Y / 10
1/√2 = Y / 10
Value of Y = 5√2 units
PLZ HELP
Overnight, the temperature drops at a rate of 2° per hour. How long will it take for the
temperature to drop 12°?
Answer:
6 hours
Step-by-step explanation:
2x6=12
Select the correct answer.
Jamal is comparing his transportation options for an upcoming trip. He's considering a rental car and a taxi service. Based on his planned routes
during his trip, he expects a taxi service would cost about $128. Jamal could also get a rental car for a dally rate and unlimited miles. If Jamal's
trip will last 4 days and he expects to pay about $24 for gas, which graph shows the range of car rental rates that would be cheaper than the taxi
service?
The range of rental car rates that would be cheaper for Jamal than the taxi service and the graph of inequality x<26 is shown.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
Let's suppose the rental car rate is:
$x per day
Number of days of Jamal's trip = 4 day
He expects to pay $24 for gas (for car rent)
He expects a taxi service would cost about $128
Inequality can be modelled:
128 > 24 + 4x
4x < 104
x < 26
Thus, the range of rental car rates that would be cheaper for Jamal than the taxi service and the graph of inequality x<26 is shown.
Learn more about the inequality here:
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PLEASE ANSWER ASAP FOR BRAINESLT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I'd like help you but I'm not sure about this question. But I have a solution, kinda, You could say. If you go to gg and click the camera icon next to the search bar and take a photo of this problem, they will find immediate answers for you that other people have solved, I hope that helps
2x + 7 ≥ x + x + 1
Please solve this and show all of your work!
Answer:
Step 1 : Equation at the end of step 1 : (2x - 1) • (x + 7) = 0 Step 2 : Theory - Roots of a product : 2.1 A product of several terms equals zero. When a product of two or more terms equals zero, then at least one of the terms must be zero. We shall now solve each term = 0 separately
Step-by-step explanation:
Calculator A What is the measure of angle A? 5 cm 3 cm Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth. mZA =D B 4 cm C С. 4 1 2 3 4 O
Answer:
53.13⁰
Step-by-step explanation:
Use sine:
sinθ=opposite/hypotenuse
sin∠A=4/5
∠A=sin⁻¹(0.8)=53.13010235415≈53.13⁰
The measure of angle A is 53.13 degrees in right triangle ABC.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
The given triangle ABC is a right angled triangle
AB=3cm, BC=4cm and AC is 5cm
We have to find the ∠A
By using sine rule we find this
sin∠A = opposite side/hypotenuse
=4/5
sin∠A =0.8
Take sin⁻¹ on both sides
∠A =sin⁻¹(0.8)
= 53.13 degrees.
Hence, the measure of angle A is 53.13 degrees.
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Which system models the height of the tennis ball and the height of the dog's mouth over time? h = 4.5t + 18 and h = -16t2 + 1.5t + 21 h = 18t + 4.5 and h =-16t2 + 21t + 1.5 h = -16t2 + 4.5t + 18 and h = -16t2 + 1.5t + 14 h = -16t2 + 18t + 4.5 and h = -16t2 + 21t + 1.5
Answer:
the first answer is d and the second one is c
Step-by-step explanation:
edge
The height of the tennis ball and the height of the dog's mouth over time are h = 4.5t + 18 and h = -16t2 + 1.5t + 21 respectively. Therefore, the correct option is option A.
What is height?Height is a measurement of vertical distance, or how high or something someone is (how tall they are). For instance, "The altitude of that structure is 50 m" and "The height of such an aircraft in-flight is roughly 10,000 m". Christopher Columbus, for instance, has a height of 5 feet 2 inches.
Height is more frequently referred to as altitude when describing the vertical position from sea level. Additionally, elevation (height over sea level) is known as altitude if the point is connected to the Earth. The height of the tennis ball and the height of the dog's mouth over time are h = 4.5t + 18 and h = -16t2 + 1.5t + 21 respectively.
Therefore, the correct option is option A.
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8. What does the y-intercept represent?
A. It shows that during the week a movie is released, it is rented about 20 times.
B. It shows that 6 weeks after a movie is released, it is rented about 3 times.
C. It shows that 3 weeks after a movie is released, it is rented about 6 times.
D. It shows that 20 weeks after a movie is released, it is rented 0 times.
Given two points (2, 7) and (1, -2) on a line, calculate the slope of the line.
A. slope 7
B. slope 8
C. slope 9
D. slope 10
Answer:
Step-by-step explanation:
Slope of line passing through (2, 7) and (1, -2) = (-2-7)/(1-2) = 9
The scatter plot below shows the relationship between hours spent on video games and hours spent on homework last week for students in Ginny's class.
Which of the following is the best estimate of the average change in homework time that was associated with a 111 hour increase in time spent on video games?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
-4−4minus, 4 hours
(Choice B)
B
-\dfrac{4}{3}−
3
4
minus, start fraction, 4, divided by, 3, end fraction hours
(Choice C)
C
-\dfrac{1}{3}−
3
1
minus, start fraction, 1, divided by, 3, end fraction hours
(Choice D)
D
-\dfrac{1}{6}−
6
1
minus, start fraction, 1, divided by, 6, end fraction hours
Answer:Choice B -4/3
Step-by-step explanation:
Please help me RANDOM ANSWERS WILL BE REPORTED
Answer:
About 51 miles per hour
Step-by-step explanation:
I need help with this I don’t understand the answer
Answer:
the answer is 6
Step-by-step explanation:
Group A is on the north side of the fire and is 800 ft away from group B and 900 feet away from group C. Group A knows that the angle between its two adjacent sides is 89.6. “
The emergency responders want to properly inform the nearby towns of the danger proximity. They will need all three angles. To do this they need some additional information. The emergency responders need to know the angle of Group B and Group C. They also need to know the distance between Groups B and C.
Answer:
1. Length BC is 1200 ft
2. Angle B is 48.6°
3. Angle C is 41.8°
Step-by-step explanation:
1. Determination of the length BC
Side opposite C = c = 800 ft
Side opposite B = b = 900 ft
Angle A = 89.6°
Side opposite BC = a =?
Using cosine rule, we can obtain length BC as follow:
a² = b² + c² – 2bc CosA
a² = 900² + 800² – 2 × 900 × 800 × Cos89.6
a² = 810000 + 640000 – 1440000 × 0.007
a² = 1450000 – 10080
a² = 1439920
Take the square root of both side
a = √1439920
a ≈ 1200 ft
Thus, length BC is 1200 ft
2. Determination of angle B
Side opposite B = b = 900 ft
Side opposite A = a = 1200 ft
Angle A = 89.6°
Angle B =?
Angle B can be obtained by using sine rule as follow:
a / Sine A = b / Sine B
1200 / Sine 89.6° = 900 / Sine B
Cross multiply
1200 × Sine B = 900 × Sine 89.6°
1200 × Sine B = 900
Divide both side by 1200
Sine B = 900/1200
Sine B = 0.75
Take the inverse of Sine
B = Sine¯¹ 0.75
B = 48.6°
Thus, angle B is 48.6°
3. Determination of angle C
Side opposite C = c = 800 ft
Side opposite A = a = 1200 ft
Angle A = 89.6°
Angle C =?
Angle C can be obtained by using sine rule as follow:
a / Sine A = c / Sine C
1200 / Sine 89.6° = 800 / Sine B
Cross multiply
1200 × Sine C = 800 × Sine 89.6°
1200 × Sine C = 800
Divide both side by 1200
Sine C = 800/1200
Sine C = 0.6667
Take the inverse of Sine
C = Sine¯¹ 0.6667
C = 48.6°
Thus, angle C is 41.8°
WILL MARK BRAINLIEST
What is the value of j?
Find the diameter of a circle with circumference 44 cm
Answer:
14cm
Step-by-step explanation:
just so u know all u gotta ddo to findd the diameter is divide it by 3.14 i think