Answer:
4. A study where subjects are given treatments and their responses are measured and recorded.
Step-by-step explanation:
The correct answer is - 4. A study where subjects are given treatments and their responses are measured and recorded.
Reason -
An EXPERIMENT is any activity with an observable result.
Here,
Responses are measured and then recorded.
Can you help me on question nine please?!
Answer:
24
Step-by-step explanation:
plug in 2
2^3+7(2)+2
2×2×2+14+2
8+14+2
24
if f(x) =2((x)), find f(-1/4)
Answer:
Combine
f and 1/4.
and u get - f/4
Step-by-step explanation:
Answer:
-1/2
Step-by-step explanation:
2(-1/4)
Based on the scatterplot below what is the most likely value for pounds of apples phone number of Apples is 60
PLEASE HELP I WILL GIVE BRAINLIEST IF YOU GET IT RIGHT 7TH GRADE MATHH
Answer:
990
Step-by-step explanation:
(21*18*2)+(21*3*2)+(18*3*2)
=990
How to get 14 equal pieces from 6.3m of cord
Alan has 152 pictures to put into an album.he can put 8 pictures on a page.how many pages will he fill?
Total pages = total pictures / pictures per page.
Total pages = 152 / 8
Total pages = 19
Answer:
19 pages
Step-by-step explanation:
152/8 = 19 pages
Unit 7: Polygons & Quadrilaterals Homework 4: Rhombi and Squares
please help!!!
Answer:
9) VU = 15
SU = 21.21
TV = 21.21
SW = 10.61
10) OM = 46
PN = 23
ON = 46
MN = 46
Step-by-step explanation:
9) SU = TV = √15²+15² = 21.21
SW = 21.21/2 = 10.61
10) PN = 46/2 = 23
Answer:
9) VU = 15SU = 21.21TV = 21.21SW = 10.6110) OM = 46PN = 23ON = 46MN = 46Step-by-step explanation:9) SU = TV = √15²+15² = 21.21SW = 21.21/2 = 10.6110) PN = 46/2 = 23
Step-by-step explanation:
Point KK is located at (5,-4)(5,−4) on the coordinate plane. Point KK is reflected over the xx-axis to create point K'K
What ordered pair describes the location of K'?K
Answer:
The ordered pair that describes the location of K' is (5,4).
Step-by-step explanation:
Reflection over the x-axis:
When a point is reflected over the x-axis, it's x-coordinate stays the same, while the signal of the y-coordinate is changed. So
(x,y) -> (x,-y)
In this question:
Point K(5,-4)
Reflection over the x-axis:
(5,-4) -> (5,-(-4)) -> (5,4)
The ordered pair that describes the location of K' is (5,4).
I need help with this question.
9514 1404 393
Answer:
1.13 feet
Step-by-step explanation:
We know that the sine relation is ...
Sin = Opposite/Hypotenuse
so the length (L) of the ramp surface will be ...
sin(angle) = 2/L
L = 2/sin(angle)
For 18°, the ramp length will be about ...
L = 2/sin(18°) ≈ 6.472 . . . . feet
For 22°, the ramp length will be about ...
L = 2/sin(22°) ≈ 5.339 . . . . feet
The difference in lengths is about ...
6.472 -5.339 = 1.133 ≈ 1.13 . . . . feet
A table is on sale for $323, which is 15% less than the regular price. What is the regular price?
what is the value of the exponital expression below 36 1/2
Answer choices
15.4
16
Please help
Answer: 16 ft²
Step-by-step explanation:
use the following equation:
(1/2)bh
substitute in your values:
(1/2)(5)(6.4) = 16 ft²
Whats the answer to this question?
Help me out thanks !!!!!
Answer:
B) ∠SBY = 117°
Step-by-step explanation:
interior angles in a pentagon = (5x180) - 360 = 540°
each angle = 540/5 = 108°
interior angles in a octagon = (8x180) - 360 = 1080°
each angle = 1080/8 = 135°
∠SBY = 360 - 108 - 135 = 117°
(fractions) 3/4 + 1/5
Answer:
19/20
Step-by-step explanation:
write all numerators above the least common denominator 20
15+4/20
add the numbers
19/20
Answer: 19/20
Step-by-step explanation:
Find your common denominator
3/4
Multiply by 5
15/20
1/5
Multiply by 4
4/20 + 15/20= 19/20
Hope this helped :)
Which function is
graphed below?
4 ft 5 ft 2 ft 6 ft 6 ft 11 ft
Answer:
34 feet
Step-by-step explanation:
You and three friends order a large pizza and three sodas at Blue Mountain Pizza.
- The sub total is 32.85.
- There is a 7% sales tax
- You want to leave an 18% tip on the price of the meal plus tax.
If the bill is divided evenly how much will each person pay? (Round to the nearest cent)
Please show work!
Answer:
$13.20
Step-by-step explanation:
7% = 0.7 so you add that to $32.85 = $33.55
18% of $33.55 is 6.039 so you add that to $33.55 = 39.589
That is the total of the bill so you divide it by 3
39.589 /3 =13.1963
rounded to the nearest cent is $13.20
What is the distance between the points (4, 3) and (1,-1) on the coordinate
plane?
Robert has 7 pounds of ground beef. He is dividing the beef into burgers that are each 1/3 of a pound. How many burgers can he make
A hat website tracks the number of hats sold for different professional basketball teams. For one team, they sell an average of
1,200 hats per month at $22 each. The company intends to increase the price of each hat by x dollars, and for each $1 Increase, the
average number of hats sold per month decreases by 40. The company needs to make at least $25,000 in revenue to cover their
monthly expenses.
Which inequality could be used to determine the number of $1 Increases for which the company will be able cover their expenses?
o
-4022 - 2,0801 - 26,400 > 25,000
-40.x2 – 3201 - 26,400 > 25,000
O
-40.x2 + 3200 + 26,400 > 25,000
O
-4012 + 2,0801 + 26,400 > 25,000
Answer:
The answer is C.
Step-by-step explanation:
Answer:
-40.x2 + 3200 + 26,400 > 25,000
hope this helps
-7( 2y - 3x + 9 ) =
Plz help
Answer:
21x - 14y - 63
Step-by-step explanation:
Rearrange the terms so it's: -7(-3x + 2y + 9)
Then distribute it and you have your answer, unless you know what x and y are
please helppp!!!!!! im giving all my points left
A teacher wants to compare how two classes have performed on a test they have taken. Should the teacher report the test mean or the test median? Which measure might describe the data set better? Why?
Your response should be 3-5 sentences long.
Answer: median
Step-by-step explanation: In this situation the mean is widely preferred as the best measure of central tendency because it is the measure that includes all the values in the data set for its calculation
Find The LCM Of The Following:
17
19
Answer:
323
Step-by-step explanation:
Answer:
991863
Step-by-step explanation:
The bates family went to eat at hot dog heaven if the bill was $57.25 and they left the server 20% tip what was the final cost of the meal?
Answer:
68.70
Step-by-step explanation:
Find the tip by doing 57.25 x 0.2
Tip=11.45
Add it 57.25+11.45=68.7
68.70
Hi. I need help with math. 8th grade.
Answer:
260 is the answer. jjrjejjehene
a company that sells annuities must base the annual payout on the probability distribution of the length of life of the participants in the plan. suppose the probability distribution of the lifetimes of the participants in the plan is approximately normal with mean equal to 66.3 years and standard deviation equal to 3.6 years. nine participants are randomly selected. what is the probability that the average age at death of these nine participants will exceed 68 years
Answer:
0.0778 = 7.78% probability that the average age at death of these nine participants will exceed 68 years
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Approximately normal with mean equal to 66.3 years and standard deviation equal to 3.6 years.
This means that [tex]\mu = 66.3, \sigma = 3.6[/tex]
Sample of 9:
This means that [tex]n = 9, s = \frac{3.6}{\sqrt{9}} = 1.2[/tex]
What is the probability that the average age at death of these nine participants will exceed 68 years?
This is 1 subtracted by the pvalue of Z when X = 68. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{68 - 66.3}{1.2}[/tex]
[tex]Z = 1.42[/tex]
[tex]Z = 1.42[/tex] has a pvalue of 0.9222
1 - 0.9222 = 0.0778
0.0778 = 7.78% probability that the average age at death of these nine participants will exceed 68 years
yo momma is 600 pounds she eats 300 more pounds of food and gets fatter how many more pounds does she need to get to weigh 3000 pounds
Answer:
2100
Step-by-step explanation:
L M A O
Determine whether the given value is a solution to the equation.
A. x + 15 = 10; x=5
B.m/3=11 ; m=33
C. 5n=42; x=7
Answer:
B) m/3=11 ; m=33
Step-by-step explanation:
First, I substituted in my 33 in the m in me m place. Then, divide 33 by 3 and you get 11=11, and that is a true statement. I hope this helps :)
2/5 x 30 pls help me
Answer:
12
Step-by-step explanation:
Answer:
The answer is 12.