Answer:
Step-by-step explanation:
Regression analysis typically involves the following steps except: Identify the variables that might predict an outcome. Identify the parameters of the model. Set boundaries or thresholds. Determine the functional form of the relationship.
The choice which isn't one of the steps in regression analysis is; Set boundaries or thresholds.
Regression analysisA Regression analysis is a statistical computation which involves:
Identifying the relationship between a dependent variable and one or more independent variables. A model of the relationship is hypothesizedFinally, estimates of the parameter values are used to develop an estimated regression equation.Read more on regression analysis;
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A sphere has a radius of 5cm what is the volume of the sphere
Answer:
[tex]\frac{500}{3}\pi[/tex]
Step-by-step explanation:
The equation for Volume of a Sphere is:
[tex]V=\frac{4}{3}\pi r^3[/tex]
We can plug in the given radius into the equation:
[tex]V=\frac{4}{3}\pi5^3=\frac{4}{3}\pi125=\frac{500}{3}\pi[/tex]
A paratrooper bails out of an airplane at altitude 15,000 ft, then falls freely for 30 seconds, then opens a parachute.
The speed of the parachute is 50ft/s
How to calculate the speed of an objectThe formula for calculating speed is expressed as:
Speed = Distance/Time
Given the following parameters
Distance = 15,000 feet
Time = 30 seconds
Substituting into the formula;
Speed = 1500ft/30s
Speed = 50ft/s
Hence the speed of the parachute is 50ft/s
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Yusra's dog is overweight. The vet says the dog needs to lose 7 pounds to get down to the desirable weight of 45 pounds. How much does Yusra's dog weigh? Define a variable and write an equation for this situation. Then solve the equation and check the solution.
Answer:
the dog weighs 52lb
3/4 x 2/9
Answer as fraction
Answer:
1/6
Step-by-step explanation:
3/4 x 2/9
3*2 = 6
4*9 = 36
6/36 (which can be simplified as 1/6)
Hope this helps!
HELP!!Jake rewrites the expression 36x4−1 as a difference of squares so he can factor it. Which answer choice shows how Jake could rewrite the expression?
Question 7 options:
(6x)4−12
(6x)2−12
(6x)4−14
(6x2)2−12
Answer:
Answer choice 3
Step-by-step explanation:
Pls somone help me I need the answer pls
Anita went to lunch with some friends and paid $260 for the final bill, including tip. If they left a 16% tip, what was the bill before the tip?
Answer:
The bill was $218.40 before the tip
Step-by-step explanation:
The $260 is the amount with the tip, if 16% of the bill was the tip, we need to find what 100% - 16% of the bill is.
[] First, 100% - 16% is 84%
-> We need to find 84% of $260
[] Next, 84% can become 0.84
-> 260 * 0.84 = $218.40
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
Which lines in this figure are parallel?
Answer:
A and B.
Step-by-step explanation:
The definition of parallel lines is: "Parallel lines are straight lines that are always the same distance apart from each other. Parallel lines never meet no matter how much they are extended in either direction." So, in conclusion, your answer is: A and B.
Hope this helped!
Answer:
A&B because they are not intersecting.
1
y = 5*+1
y = -x + 7
Plot two lines by clicking the graph,
Click a line to delete it.
I NEED A ANSWER RN
Answer:
1.5+1=6
2.-0+7=7
Step-by-step explanation:
yung -x Po ay magiging zero
Please help me with this
Answer:
x = 37
Step-by-step explanation:
2x and 74 are vertically opposite angles and are congruent, so
2x = 74 ( divide both sides by 2 )
x = 37
Step-by-step explanation:
To find the value of x, first, the denominators are made equal by taking the L.C.M. of them.
(3x + 2)/7 + (4(x + 1))/5 = 2/3 * (2x + 1) (45x + 30 + 84x + 84)/105 = (140x + 70)/105
Since both the sides of the equation have the same denominator now, they can be cancelled out.
45x + 30 + 84x + 84 = 140x + 70
The equation can be rearranged by shifting all the x terms on one side of the equation and all the constants on the other side of the equation.
140x - 85x - 45x = 84 + 30 - 70
10x = 44
x = 4.4
Therefore, the value of x is 4.4.
i really need help please give a simple and plain answer like the exaple in the photo
Answer:
Hi! To find x (the missing angles of the triangles), remember that the angles in a triangle add up to 180 degrees. This means that for each triangle, you can add the two angles given, then subtract that number from 180 to find x. I'll use Triangle 1 as an example:
81 + 84 = 165
180 - 165 = 15
So for Triangle 1, x is equal to 15.
To classify each triangle by angles, remember that an acute triangle has three angles that each measure less than 90 degrees, a right triangle is a triangle with one 90 degree angle, and an obtuse triangle is a triangle with one angle that is greater than 90 degrees. To classify each triangle by sides, remember that scalene triangles have three sides of unequal length, isosceles triangles have two sides of equal length, and equilateral triangles have three sides of equal length.
Keeping all this in mind, here are your answers:
Triangle 1 - 15 acute scalene
Triangle 2 - 120 obtuse scalene
Triangle 3 - 41 right scalene
Triangle 4 - 104 obtuse isosceles
Triangle 5 - 25 right scalene
Triangle 6 - 64 acute scalene
Triangle 7 - 72 acute scalene
Triangle 8 - 32 obtuse scalene
Triangle 9 - 40 right scalene
I hope this helps you! Have a great day. - Mani :)
An industrial machine produces widgets, but it has a 0.12 defective rate. What is the probability that the machine produces fewer than 3 defective widgets in a production run of 75 items?
A. 0.0035
B. 0.0043
C. 0.0654
D. 0.0432
Answer: Hence required probability = 0.004307
Step-by-step explanation:
Given an industrial machine has 0.12 defective rate and to find probability that fewer than 3 defective widgets run of 75 items,
⇒[tex]P(x < 3)=P(x=2)+P(x=1)+P(x=0)[/tex], since P(x=r)=[tex]_nc_r P^rq^n^-^r[/tex]
Here P=0.12, q=1-p, 1-0.12=0.88, n=75
the rest of the answer is explained in the photo below.
PLEASE HELP! AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Answer:
117°
Step-by-step explanation:
Start by finding the measure of the angle adjacent to the one marked 101 degrees. Since they are a linear pair, they add up to 180 therefore...
101+y=180
Subtract 101 from both sides...
y=79
Now, using the exterior angle theorem (the exterior angle is equivalent to the sum of the two interior angles that are NOT adjacent to the exterior angle), we can set up an equation to find x...
x=38+79
x=117
Suppose f(x) = x3. Find the graph of f(x+5)
Answer:
3x + 15 it seems it would be graph 3
Step-by-step explanation:
f(x+5) = (x+5)3
= 3x + 15
please help I will give brainliest.
Answer:
Loan is increasing
Rate = 8% per year
Step-by-step explanation:
[tex]h(x) = 5000.(1.08) ^{x} \\ \\ \implies \: h(x) = 5000.(1 + 0.08) ^{x} \\ \\ \implies \: h(x) = 5000.(1 + 8 \%) ^{x} [/tex]
Since, rate of interest is positive, so loan in increasing.
Rate = 8 percent per year
Acellus:
How many lines can be constructed
perpendicular to AB that pass
through point D?
A. O
B. 1
C. 2
Answer:
B. 1
Step-by-step explanation:
There is exactly one (1) line perpendicular to a given line that goes through a given point not on the line.
One line can be constructed.
Mallory began a new job at an amusement park 4 weeks ago. She worked 13
hours during the first week, 22 hours during the second week, 18 hours during
the third week, and 15 hours during the fourth week. Which graph best
represents the total hours Mallory worked over these 4 weeks?
Answer:
b
Step-by-step explanation:
Answer:
Im pretty sure its the graph on the top right
Step-by-step explanation:
the first 2 weeks she worked the graph went up, the last 2 weeks she worked less time, so the graphs will go down, but since she worked 15 hours on the third week, and 13 hours on the first week, the third weeks point doesn't go below the first weeks starting point. anyways i hope thats correct
If a car is going at 30 km per hour and i need to drive 500 metres how long would it take
Answer:
So in 60 minutes it would travel 30 km.
Step-by-step explanation:
Distance travelled by the car=500 km. Total time taken=2 hrs.
On average, it costs $1.06 to purchase the mp3 for a particular song. On average, it takes 35 seconds to purchase that mp3. It also takes (on average) 3 min, 25 sec to find the licensing information for a particular song, and costs an average of $2.64. What's the total cost to license & purchase 500 songs? How much time will it take?
The total cost to licence and purchase 500 songs is; $1850
The time it takes to do so is; 200 minutes
Cost and TimeFrom the task content:
The total cost to licence and purchase the each song is as follows;Total cost = $1.06 + $2.64Total cost = $3.70
For 500 songs = 500 × $3.70 = $1850
The total time it takes to find the licencing information and to purchase the song is;
Total time = 35s + 3m + 25sTotal time = 4minutes
For 500 songs = 500 × 4 = 200minutes
Read more on cost and time;
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Question shown with image attached.
Answer:
x = 109°Step-by-step explanation:
(x° - 38°) + x + 90° + 90° = 360°
(The sum of the interior angles of any quadrilateral is 360°)
[tex](x - 38) + x + 90 + 90 = 360 \\ x - 38+ x + 180 = 360 \\ x + x + 180 - 38 = 360 \\ 2x + 142 = 360 \\ 2x = 360 - 142 \\ 2x = 218 \\ \frac{2x}{2} = \frac{218}{2} \\ x = 109 \\ [/tex]
The total angle measures a quadrilateral has is 360 degrees and in the problem, we are told that two of the angles are both 90 degrees. So thats 180 degrees out of the way and now we have x+(x-38)=180 which is 2x-38=180 then you add 38 to both sides to get rid of the 38 on the left side and then you end up with 2x=218 so you have to divide both sides by 2 to remove the 2 from x and you would get x=109
The cost price of a product is Rs. 10275.25, transportation and the miscellaneous cost is Rs. 224.75. The product is sold with a profit margin of Rs. 250. What is the selling price of the product?
Answer:
here's your answer......
whats the area??? helppp !!
Answer:
120
Step-by-step explanation:
the pic was blury but the bigger rectangle seemed to be 10 by 8 so you multiply 10×8=80. the smaller rectangle is 5 by 8 so you multipy 5×8=40. then add 40+80=120
Answer:
120 sq cm
Step-by-step explanation:
What is an equation of the line that passes through the point (–2, 5) and is perpendicular to the line y=12x + 5 ?
What is an equation of the line that passes through the point (–2, 5) and is perpendicular to the line y=12x + 5 ?
y = 12x + 5
- 12x + y = 5
gradient 1 = -a/b
= -(-12) / 1
= 12/1
= 12
gradient 2 × 12 = -1
Gradient 2 = -1/12
y - y1 = m (x - x1)
y - 5 = -1/12 ( x - (-2))
multiply all, by 12
12y - 60 = - 1 (x + 2 )
12y - 60 = -x - 2
x + 12y = - 2 + 60
x + 12y = 58
Which of the following figures shows a major arc?
Answer:
Picture C
Step-by-step explanation:
A major arc isn't a full circle eliminating picture a.
It is also bigger than 180º eliminating picture b and d.
leaving picture c which checks all the qualifications
Option(C) figure shows a major arc.
What is arc?
An arc is defined as a portion of the circumference of a circle.
An arc whose measure is greater than 180 degrees is called a major arc.
Hence, Option(C) figure shows a major arc.
Learn more about arc of circle
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An airplane climbs at an angle of 12° with the ground. Find the horizontal distance it has traveled once it has reached an altitude of 500 feet. using cos
Answer:
2352.32
Step-by-step explanation:
Sin 12 = 500/H
H = 2404.86717
Cos(12) = A/2404.86717
A = 2352.32
The horizontal distance it has traveled once it has reached an altitude of 500 feet is approximately 2352 feet.
The situation forms a right angle triangle
What is a right angle triangle?A right angle triangle has one of its angles as 90 degrees. The sides and angles can be found using trigonometric ratios.
The altitude of the plane is the opposite side.
The horizontal distance it travelled is the adjacent side of the triangle formed.
Therefore,
tan 12 = opposite / adjacent
tan 12 = 500 / a
a = 500 / tan 12
a = 500 / 0.2125565616
a = 2352.31573723
a = 2352 feet
learn more on right triangle here: https://brainly.com/question/14779430
Please help with the answer below
Answer:
[tex]f(x) = \frac{x + 7}{6 - x} \\ \frac{3}{2} = \frac{x + 7}{6 - x} \\ 3(6 - x) = 2(x + 7) \\ 18 - 3x = 2x + 14 \\ - 3x - 2x = 14 - 18 \\ - 5x = - 4 \\ \frac{ - 5x}{ - 5} = \frac{ - 4}{ - 5} \\ x = \frac{4}{5} [/tex]
A tree is casting a shadow that is 6.2 meters long. The distance from the end of the shadow to the top of the tree is 7.5 meters. How tall is the tree? Round to the nearest tenth if necessary.
Answer:
13.7
Step-by-step explanation:
I did a test on this i got it correct
Answer:
4. metres (approx)
Step-by-step explanation:
The given situation can be illustrated as a picture which I have attached to the answer for better understanding.
As you can notice, the situation can be modeled as a right triangle.
Use the Pythagorean theorem to find the value of leg h, as follow:
[tex]h=\sqrt[]{(7.5m)^{2} - (6.2m)^{2}} \\h=\sqrt{56.25m^{2} - 38.44m^{2}}\\h=\sqrt{17.81m^{2} } \\h= 4.2 m[/tex]
Rounding of the answer : 4 meters
Hence, the height of the tree is approximately 4m.
Please mark me as brainliest if you found this helpful.
What is the area and perimeter of a rectangle whose L = 4.5 and W = 2.6
Answer:
6.0
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Answer:
11.7
Step-by-step explanation:
Hi, to calculate area of a shape; you have to do length multiplied by width. However this formula may vary when calculating different shapes like triangles etc.
Wangari plants trees at a constant rate of 12 trees every 3 hours.
Write an equation that relates p, the number of trees Wangari plants, and h, the time she spends planting them in hours.
Answer:
[tex]p = 4h[/tex]
Step-by-step explanation:
The equation of straight line is given by:
[tex]y = mx[/tex]
where, m is the slope or rate of the line.
As per the statement:
Wangari plants 12 trees every 3 hours.
By definition of unit rate:
Unit rate per hour [tex]= \frac{12}{3} = 4[/tex] trees
⇒[tex]m = 4[/tex]
We have to find an equation that relates the number of trees Wangari plants (p) and the time she spends planting them (h) in hours.
then;
[tex]p=4h[/tex]
where, p represents the plant trees and the time she spends planting them in h hours
Therefore, [tex]p=4h[/tex] an equation that relates the number of trees Wangari plants (p) and the time she spends planting them (h) in hours.
Credit Answers to: OrethaWilkison
simplify the expression:
Answer: 7b^4c^3 + 3b^3c^4
Step-by-step explanation:
The ^ means exponent
Answer:
The answer is 7b⁴c³ – 3b³c⁴
Step-by-step explanation:
7b⁴c³ + 6b³c⁴ – 3b³c⁴ = 7b⁴c³ – 3b³c⁴
Thus, The answer is 7b⁴c³ – 3b³c⁴
-TheUnknownScientist 72