If y varies directly with x and x=21 and y=14, what is the constant of proportionality?
Answers
y = kx
y=14
x=21
14 = 21k
21 and 21 cancels out
The constant of this proportionality is
Related Questions
Melissa and her friends are stretching rubber bands for an activity in science class. Melissa stretched her elastic to 10 inches. Juan stretched it 3 1/2 times as far. Sara stretched it 4/4 times as far. Marsha stretched it 2/5 as far. Put the students in of how far they stretched their rubber bands from least to greatest
The area of a rectangle is 82.84 square meters. If the length is 7.6 meters, then what is the width?hey i need help, anyone i don't get it do i divide or multiply HELPPPPP
Select the fraction that would be included in an equivalence chain for 1/4.
Evaluate: x = y² if x = 8 and y = 3A. 2B. 509C. 25D. -1
Answers
Answer:
-1
Step-by-step explanation:
I hope this helps!
Answers
Answer:
Just keep dividing like what I did in this image.
2. 8/14=
3. 6/8=
4. 3/6=
5. 5/15=
Answers
8/14=4/7
6/8=3/4
3/6=1/2
5/15=1/3
a + b < 0
a - b > 0
a + b > 0
b - a > 0
Answers
If a > 0 and b < 0, then The answer is a + b > 0
let’s give a specific example:
let’s have a = 1
and b = .20
Now, let’s try calculating if our answer is correct.
Thus a + b > 0
=> a + b
=> 1 + .20
=> 1.20
and 1.20 is greater than 0.
=>Therefore 1.20 > 0 = a + b > 0
In a normal distribution, the mean has Standard Score: z =
Answers
Using the normal distribution, it is found that the z-scores are:
1) z = -0.8
2) z = 2.4
3) z = 0
In a normal distribution with mean and standard deviation
, the z-score of a measure X is given by:
- It measures how many standard deviations the measure is from the mean, either above the mean(positive z-score), or below(negative z-score).
Item 1:
0.8 standard deviations below the mean, hence z = -0.8.
Item 2:
2.4 standard deviations above the mean, hence z = 2.4.
Item 3:
The mean is 0 standard deviations from itself, hence z = 0.
A similar problem is given at brainly.com/question/24663213
Final answer:
A standard score (z-score) signifies how many standard deviations a data point is away from the mean. A data value 0.8 standard deviations below the mean has a z-score of -0.8, meanwhile, if it is 2.4 standard deviations above the mean, its z-score is 2.4. The mean in a normal distribution has a z-score of 0.
Explanation:
In the field of statistics, a standard score (also known as a z-score) represents how many standard deviations an element is from the mean. In a normal distribution, a data value located 0.8 standard deviations below the mean has a Standard Score: z = -0.8. This is because the z-score is negative when the data value is below the mean. Conversely, a data value located 2.4 standard deviations above the mean has a Standard Score: z = 2.4. As the data value is above the mean, the z-score is positive. Finally, for the mean value itself in a normal distribution, the Standard Score: z = 0 because the mean value is the center of distribution, hence no deviation from itself.
Learn more about Standard Score here:
#SPJ3
(1 pt)
What is the area of the rectangle?
A.
0.9416 mi²
B.
1.8832 mi²
C.
1.95 mi²
D.
3.90 mi²
2.
(1 pt)
What is the area of the rectangle?
A.
40 km2
B.
40 m2
C.
26 km2
D.
26 m2
3.
(1 pt)
What is the area of the rectangle?
A.
1.125 yd²
B.
2.250 yd²
C.
4.50 yd²
D.
11.25 yd²
4.
(1 pt)
What is the area of a rectangular playground with a length of 84.5 ft and a width of 53 ft?
A.
137.5 ft²
B.
275 ft²
C.
4478.5 ft²
D.
44,785 ft²
5.
(1 pt)
Which measurement is the closest approximation of the rectangle’s area?
A.
16 m²
B.
32 m²
C.
65 m²
D.
70 m²
Answers
There are no dimensions available here, so i have no idea what the questions are talking about.
but i can help u with 4.
so multiply 84.5 * 53, that equals 4,478.5