Answer:
10.5
Step-by-step explanation:
Given the data:
Age. l frequency
1-5. l 3
6-10. l 3
11-15. l 3
16-20. I 3
Mean :
Σfx / Σf
Obtain the midpoint (x) = (upper + lower boundary) / 2
Hence, midpoint x :
Age. l frequency | x
1-5. l 3 | 3
6-10. l 3 | 8
11-15. l 3 | 13
16-20. I 3 | 18
Σfx = (3*3) + (3*8) + (3*13) + (3*18) = 126
Σf = (3 + 3 + 3 + 3) = 12
Mean = Σfx / Σf = 126 / 12 = 10.5
Figure A maps to figure B with a scale factor of 0.25
Answer:
x would be 6
Step-by-step explanation:
This is becuase since the scale factor from Fig A to B is 0.25, the length of all of the sides follows this rule.
Since x on Fig A and 1.5 on Fig B are corresponding sides, you can do:
x * 0.25 = 1.5
x * 0.25 (4) = 1.5 (4)
x * 1 =6
x = 6
1) Mike can run a miles in 12 minutes he starts his run at 11:30am and run 4miles what time dose mike finish his run
Help fast
Answer:
12:18
Step-by-step explanation:
12*4 = 48 minutes
Answer:
Mike stops running at 12:18 PM
Step-by-step explanation:
We know he runs 1 mile each 12 minutes and we also knows he ran 4 miles so the equation is 12*4 or (12 times 4) which is equal to 48. We then add 38 minutes to 11:30 AM and end up at 12:18 PM.
Which number is the median of the data represented on the box-and-whisker plot?
10
20
30
40
50
60
70
80
90
O 30
37
O45
0 72
Given:
The box-and-whisker plot of a date set.
To find:
The median of the data represented on the box-and-whisker plot.
Solution:
In a box-and-whisker plot of a data set, the line inside the box represents the median of the data set.
In the given box-and-whisker plot, it is clear that the there is a line inside the box at 45. It means the median of the data represented on the box-and-whisker plot is 45.
Therefore, the correct option is C.
Answer:
C. 45
I got it right on my assignment
Max wants to start a farm to grow mussels. He needs to determine the best environment for growing them. He is going to try two different amounts of salt in the water (salinity) and three different water temperatures. For his experiment he has 18 aquariums, each with 20 mussels. He wants to see which environment produces the largest mussels.
1. Identify the subjects.
2. Identify the factors and levels.
3. Identify the treatments.
4. Identify the response variable.
5. Describe an advantage to random assignment of treatment.
6. Explain how replication would be used in this study.
7. Someone suggested that Max arrange the tanks so that six with the lowest temperature are on one end of the room, and the six with the highest temperature are at the other end of the room. Explain how this could introduce confounding into the experiment.
8. Would it make sense to have a control group that did not get any of the treatments described above?
Answer:
1.) Subject = 18 Aquariums each with mussel
2.) Factors(levels) = temperature(3 levels) and salinity (2 levels)
3.) Treatment = High salinity high temperature ; High salinity low temperature ; High Salinity medium temperature ; Low salinity Low temperature ; Low salinity, High temperature ; Low salinity Medium temperature.
4.) Response variable = size of mussel produced
5.) Random assignment will help prevent the introduction of bias and confounding variable.
6.) For replication purpose, Each of the six treatment could be assigned to 3 tanks, so 3 aquarium for one treatment.
7.) By doing such we might be a possible location based effect which might might creep into our research. Hence, causing a spurious relationship.
8.) A control experiment whereby no salt is added will cause the mussel to die as they require salt to survive.
Step-by-step explanation:
Answers are Explanatory.
will
3) Find the least. positive integer that is a nultiple of 1. 2. 3. 4. 5. 6. 8. and 12.
Answer:
Step-by-step explanation:
Flew hw hw
Plsss answerrrr I’ll mark you brainliesttt plss help
Why are both of the answers to the last question correct?
the answer is : An exponent is a short way to write repeated multiplication. So 212 means the same as 2 • 2 • . . . • 2 • 2.
Answer:
An exponent is a short way to write repeated multiplication. So 212 means the same as 2 • 2 • . . . • 2 • 2.
Step-by-step explanation:
Answer:
An exponent is a short way to write repeated multiplication. So 212 means the same as 2 • 2 • . . . • 2 • 2.
Step-by-step explanation:
someone can help me ?
Answer:
[tex] \frac{3}{2} [/tex]
Step-by-step explanation:
I'm not sure how to answer this but try to put the "5's" in Fraction form as 5/1 and divide them with 15/2. Which would be 3/2
please i need help fast with explantion
9514 1404 393
Answer:
60°
Step-by-step explanation:
You recognize the ratio of the long side to the short side as 2 : 1, so you know this is the 1 : √3 : 2 "special" triangle that has angles 30°, 60°, 90°. The angle of interest is opposite the longer side, so is the 60° angle.
x° = 60°
_____
In case you don't remember the "special" 30-60-90 and 45-45-90 right triangles, you can use the relevant trig function:
Cos = Adjacent/Hypotenuse
cos(x°) = 16/32 = 1/2
x° = arccos(1/2)
x° = 60°
Calcular el volumen del siguiente tanque
Cilindrico cuyas medidas son los siguientes:
Altura: 2.10 metros
Padio :0.30 metros
deco
GLASS
R=
(05.02)Find the measure of angle x in the figure below:
O 60° O 50° O 110° O 70°
Which angle measure is equivalent to the angle 17π/4
A. 45 degrees
B. 135 degrees
C. 230 degrees
D. 315 degrees
Answer:
A is correct
Step-by-step explanation:
17*180=3060
3060/4= 765
765-360=405-360=45
Help me quickkkkkkk!!!!!!!!
Answer:
a) G
b) C
Step-by-step explanation:
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Answer:
2/5
Step-by-step explanation:
Solve each equation. Please help
Answer:
x = 14
Step-by-step explanation:
Question 1 of 10
Which best describes the meaning of the statement "If A, then B?
A. If A is false, then B must be false.
B. If A is false, then B might be false.
ОО ОО
C. If A is true, then B might be true.
D. If A is true, then B must be true.
SUBMIT
Answer:
I believe it would be D
Step-by-step explanation:
Since it implies that if A is true, then B is true, it would be D.
"If A" implies that it can be both true or false, but "then B" implies that it must be B if A is true.
Hence my choice of D.
Which ordered pair is a solution of the system
x + 2y < -2 and y <-3x + 4
Where's the system? I can't answer your question without it.
Nikki had swim practice 4 days this
week. She swam 425 yards Monday and
450 yards Tuesday. She swam 100 less
yards Wednesday than she did Tuesday.
If Nikki swam 1,600 yards in all, how
many yards did she swim on Thursday?
Nikki swam 375 yards on Thursday.
what is addition?One of the four fundamental operations in mathematics is addition, along with subtraction, multiplication, and division. The entire amount or sum of the two whole numbers is obtained by adding them.
Given
Nikki swam 375 yards on Thursday.
425+450+350= 1,225
1,600- 1,225= 375
To learn more about addition refer to:
https://brainly.com/question/4721701
#SPJ2
HELP PLEASE ITS TIMED WILL MAK BRAINLIEST
Answer:
0,1is domain,4,2is range
What's the translation notation from JKL to J'K'L?
Answer:
1 up 2 right or y+1 and x+2
Step-by-step explanation:
One month Reuben rented movies and video games for a total of . The next month he rented movies and video games for a total of . Find the rental cost for each movie and each video game.
Can you say the total cost? There's not enough to go by to answer this.
Write a equation that will represent the information.
Answer:
consider r to be x. and t to be y
[tex]consider : (0, 5) \: and \: (1, 3) \\ gradient = \frac{(3 - 5)}{(1 - 0)} \\ = - 2 \\ y = mx + c \\ consinder : (1, 3) \\ 3 = ( - 2 \times 1) + c \\ c = 5 \\ therefore : equation \: is \\ = > y + 2x - 5 = 0[/tex]
What is the area of this figure?
Answer:
627.
Step-by-step explanation:
32 x 10 = 320
27 x 9 = 243
16 x 4 = 64
add them up to get 627
I hope this helps!
What is the interior angles cut by transversal t.
Answer:
When two lines are cut by a transversal, the pairs of angles on either side of the transversal and inside the two lines are called the alternate interior angles . If two parallel lines are cut by a transversal, then the alternate interior angles formed are congruent
What is one thing that you learned in math this year?
Any answer that is, "I don't know," "Not Sure," or anything like that will not count for a
grade. You have to write about something you learned in math for the answer to earn
full credit. An answer like this is does not count either, "I learned how to use exponents."
You must tell me how you use exponents to get full credit. It must be in complete
sentences including capital and periods.
Answer for this ASAP
Answer:
aaa
Step-by-step explanation:
Answer:
Math teaches us to think logically; to identify and state the problem clearly; to plan how to solve the problem; and then to apply the appropriate methods to evaluate and solve the problem. We learn to evaluate and draw conclusions based on our knowledge. Number Sense. The first mathematics skill that students learn is basic number sense. Number sense is the order and value of numbers. Through the use of their number sense, students can recall that ten is more than five and that positive numbers indicate a greater value than their negative counterparts.
Step-by-step explanation:
A set of equations is given below:
Equation C: y = 7x + 12
Equation D:y=
= 7x + 2
Which of the following best describes the number of solutions to the given set of equations?
Answer:
The number of solutions to the given set of equations is 0.
Step-by-step explanation:
Number of solutions of a system of equations:
System of equations: ax = b
If a = 0 and b = 0, infinite solutions.
If a = 0 and b != 0, zero solutions.
If a != 0 and b != 0, one solution.
We are given the following system of equations:
y = 7x + 12
y = 7x + 2
So
7x + 12 = 7x + 2
7x - 7x = 2 - 12
0x = -10
a = 0, b != 0, so zero solutions.
The number of solutions to the given set of equations is 0.
Which transformations will map the figure onto itself?
a. reflection across one of the lines of symmetry of the figure.
b. rotation of 180 degrees about the center of the figure.
c. translation of two units to the left and two units down.
d. rotation of 90 degrees about the center of the figure.
Answer:
a. reflection across one of the lines of symmetry of the figure.
Step-by-step explanation:
Calculate the sum of the first 50 terms in the sequence. 18, 21, 24, 27,
Answer:
[tex]sum = \frac{n}{2} (2a + (n - 1)d) \\ = \frac{50}{2} ((2 \times 18) + (50 - 1) \times 3) \\ = 25(36 + 147) \\ = 25 \times 183 \\ sum = 4575[/tex]
Can someone tell me the answer
Answer:
-3
Step-by-step explanation:
(-6)/(+2)
-6/+2
-3
Answer:
C. -3
Step-by-step explanation:
If you have a negative and a positive number the outcome will always be negative. So you just simply take 6 and take half of it which is 3. if you divide something by 2 you are just splitting it in half.
the brainliest please ................,,,,,,..,,,,,,,,,,,,,,,,,,,
Answer:
d
Step-by-step explanation: