Which of the following principles of experimental design reduces errors due
to chance by repeating an experiment on different subjects under different
conditions?
A. Placebo effect
B. Replication
C. Randomization
D. Control
E. Blindness
Answer:
Replication
Step-by-step explanation:
Replication meaning it's going to be repeated, also it said replication was right on a-pex
Brainliest and 10 points for answer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
How do you find the x- and y-intercepts of an equation?
A) To find the x-intercept, substitute 0 for x. To find the y-intercept, substitute 0 for x.
B) To find the x-intercept, substitute 0 for x. To find the y-intercept, substitute 0 for y.
C) To find the x-intercept, substitute 0 for y. To find the y-intercept, substitute 0 for x.
D) To find the x-intercept, substitute 0 for y. To find the y-intercept, substitute 0 for y.
Answer:
To find the x-intercept of a given linear equation, plug in 0 for 'y' and solve for 'x'. To find the y-intercept, plug 0 in for 'x' and solve for 'y'.
Answer:
C
Step-by-step explanation:
A, B, and D don't make sense
A jeweler sells gems at a cost in dollars per centigram that is 4 more than 6 times the weight of the gem in centigrams.
Thus, a gem that weighs w centigrams will be sold at a price of 6w + 4 dollars per centigram - meaning that a larger,
heavier gem will cost more per centigram than a smaller gem. If the jeweler sold a single gem for about $2500, what
did the gem weigh to the nearest centigram?
Answer:
416 centigrams
Step-by-step explanation:
2500 = 6w + 4
2496 = 6w
416 = w
In that school, what is the ratio of the number of students who like math to the number of students who like science? (see picture)
Answer: 1/2:1/3
I hope this helps
Step-by-step explanation:
In the problem it says 1/2 of the students in the school like math, and it also says in the problem that 1/3 of the students in the school like science. The question is asking for a ratio of students who like math to students who like science, so now the only thing you need to do is input those 2 numbers in the order that they want it in. Which is 1/2:1/3. And don't forget that the colon : is what you always put in between the two numbers.
If this helped you please mark as brainliest :)
Graph the equation below by plotting the
y-intercept and a second point on the
line. When you click Done, your line will
appear.
Answer:
Step-by-step explanation:
Answer: Second point is (0.833,0)
Step-by-step explanation:
1. To determine slope you must use this formula Y= Mx + B
- M is the slope (positive or negative)
- B is the y-intercept
2. To find y-intercept you use (0, B)
3. M = -6/1
- 6 units down and 1 unit to the right since the slope is negative.
A survey was taken of 75 potential voters, asking them which candidate they would vote for in a local election. The
results are given in the table below.
CANDIDATE NUMBER OF SUPPORTERS
x
41
Y
14
Z
20
If 2,000 people vote in the actual election, which is the best prediction for the number of votes for candidate X, based
on the results of this poll?
41
670
800
1.100
Answer:
41 is the right answer!
Solve this system of linear equations. Separate
the x- and y-values with a comma.
6x + 3y = -21
12x + 8y = -52
Enter the correct answer.
Answer:6.71
Step-by-step explanation:
PLEASE HELP 100 POINTS! D) How do you calculate the he residuals for a scatter plot?
E) calculate the residuals for you scatter plot in step 2d (the picture of the graph is attached) I’ll give brainliest if you answer both! :)
Answer:
PLEASE HELP 100 POINTS! D) How do you calculate the he residuals for a scatter plot?
E) calculate the residuals for you scatter plot in step 2d (the picture of the graph is attached) I’ll give brainliest if you answer both! :)
“To find the residual, you would subtract the predicted value from the measured value so for x-value 1 the residant would be” is how you would find the answer.
Surface area of a cone in terms of pi
Math question down below
Answer:
E
E is the only one that ends with 70 and is also all multiples of 6.
X is at least 2" can be represented by x > 2.
True
False
Answer:
True
Step-by-step explanation:
choose the function whose graph is given by:
Answer:
Option C
(would really, reallly appreciate the brainliest)
Step-by-step explanation:
plotted with desmos (free online math tool)
The function whose graph is given is y = 0.5cosx
What is a function?A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given that, a graph we need to find its function,
To analyze the given graph let us,
compare the given to a known, standard functiontake maxima and minima points from the graph and analyze them.From the given graph we can pick the points which can tell us about the nature of the cosine function we took,
It is clear from the graph that the function plotted is equal to the standard function i.e. cos(x)
in cos(x) ⇒ we have minima at (-π, 1)
in the given graph, the function has a maximum and touches the y-axis at (0, 0.5)
Therefore, 0.5cosx is the function represented in the graph.
Learn more about function click;
https://brainly.com/question/12431044
#SPJ7
math question screenshot down below
Need help asappp
Find the surface area of a triangular prisms, base measures 10 cm, height measures 12 cm, sides measure 13 cm
Answer:
552
Step-by-step explanation:
True or False.
A dilation is defined by a scale factor.
Answer:
True
Step-by-step explanation:
The answer will be true for the following question.
True or False.
A dilation is defined by a scale factor.
Hope this helps
Answer:
True would be your answer. Hope this helps. : )
Step-by-step explanation:
24% of what number 30
Answer:
125
Step-by-step explanation:
30*.24=125
Is (3, 2) a solution of -8x – 2y < 6?
Answer:
yes
Step-by-step explanation:
To determine if the point is a solution, substitute the coordinates into the left side of the inequality, evaluate and compare with right side.
- 8(3) - 2(2) = - 24 - 4 = - 28 < 6
Thus (3, 2) is a solution
Answer:
Yes.
Step-by-step explanation:
Let's substitute x = 3 and y = 2 into the inequality:
-8(3) - 2(2) = -28 which is less than 6 so it is a solution.
In ΔIJK, the measure of ∠K=90°, KJ = 63, IK = 16, and JI = 65. What ratio represents the cosecant of ∠I?
Answer:
1/5
Step-by-step explanation:
Answer:
65/63.
Step-by-step explanation:
65 is the hypotenuse, and JK is opposite angle < I so
csc < I = hypotenuse / opposite side
= 65/63.
7. The distance between point (–4, 5) and another point is 10. What are the possible
coordinates of the other point?
A (2, 2)
B (2, 3)
C (2, –3)
D (–2, –3)
Answer:
D (-2, -3)
Step-by-step explanation: The distance is 10 units, so you take -4 (x) and go over 2 spaces so your at x = -2, and 2 units are down, 8 more to go. Then for (y) you do 5-8 and get -3 so now y = -3 . Now you have moved 10 spaces because 2 + 8 = 10 spaces, and are left at D (-2, -3).
Ahmed wrote two numbers. The first number has a 7 in its tenths place. The
second number has a 7 with a value that is 1,000 times greater than the value of
the 7 in the first number. In which place is the 7 in the second number?
1) tens
» hundreds
» thousands
1) hundred thousands
Done →
Answer: i think the answer is B thousands
Step-by-step explanation:
can some one answer this for me plz
Answer:
The range for the 6th graders is 30-90 and the range for the 7th graders is 50-90
Step-by-step explanation:
Each one of the dots represents a individual test score from a student look at the two dots on each side and the number it falls on that shows you the range for each individual dot plot
A runner won a 100-meter race with a time of 9.73 seconds. How can you use place value to explain this time?
Answer: The runner is going exactly 10.2774922919 meters per second
Step-by-step explanation: Using the ratio 100:9.73, we can simplify that to 10.2774922919:1
abc2 at a = 4, b = 1/4, c = 5
x + y + z/3 at x = 1, y = 3, z = 5
(p + q)2 at p = 8, q = –5
Look at the attached picture
Hope it will be helpful to you...
Please help me ASAP will mark best answer brainliest
Answer:
4.) Silvia had the greater variation in her race results for the season because she has a higher standard deviation.
Step-by-step explanation:
hope this helps!!! :)
What is the completely factored form of f(x) = x^3 – 2x^2 – 5x + 6?
Answer:
D
Step-by-step explanation:
Answer:d
Step-by-step explanation:
Which of the following is true for the statement "7 is an odd number"?
A)
It's a compound statement.
B)
It's a closed statement.
C)
It's an open statement.
D)
It's both an open and closed statement.
Answer:
C - it is a open statement
Step-by-step explanation:
Answer:
A) It's a compound statement.
Step-by-step explanation:
HELP ASAP 30 POINTS!~!!!
You start with a penny which doubles each day for 30 days. How much money would you have after 30 days?
What is the slope of a line PARALLEL to the graph?
b. 0
C. 3
d.
31
2
-2
0
6
В
D
Answer:
Step-by-step explanation:
hello :
this line passes trough A(1,1) and B(2,4)
the slope is : (YB - YA)/(XB -XA)
(4-1)/(2-1) = 3/1
the slope is : 3.....answer : C (parallal means : same slope)
Find the length of x
Answer:
7.2
Step-by-step explanation:
divide 28.8 by 4
Select the correct answer.
Solve the equation by completing the square.
x^2 - 18x + ___ = 4 + ___
Answer:
A!!!!
Step-by-step explanation:
