Answer:
TRUE
Step-by-step explanation:
Standard deviation is defined as the measure of spread. In other words, it shows and determines how spread out the numbers are, i.e. the amount of dispersion or variation of a given set of numbers.
The standard deviation ranges from zero to any number. So it is possible to have a standard deviation of number 445,000 because the standard deviation can be of any value greater than or equal to zero.
Using the standard deviation concept, it is found that since the standard deviation is always a positive value or zero, the statement is true.
What is the standard deviation of a data-set?The standard deviation is given by the square root of the sum of the differences squared of each observation and the mean, divided by the one less than the number of values.It always assume a positive value or zero.Hence, considering that the standard deviation is always a positive value or zero, the statement is true.
You can learn more about the standard deviation concept at https://brainly.com/question/24754716
Change 50.08 to fraction in it's lowest term
Answer:
50.08 = 1252 / 25
Step-by-step explanation:
A construction zone on Interstate 15 has a speed limit of 40 mph. The speeds of vehicles passing through this construction zone are normally distributed with a mean of 44 mph and a standard deviation of 3 mph.
Required:
a. Find the percentage of vehicles who pass through this construction zone who are exceeding the posted speed limit.
b. What percentage of vehicles travel through this construction zone with speeds between 50 mph and 55 mph?
Answer:
a. The percentage of vehicles who pass through this construction zone who are exceeding the posted speed limit =90.82%
b. Percentage of vehicles travel through this construction zone with speeds between 50 mph and 55 mph= 2.28%
Step-by-step explanation:
We have to find
a) P(X>40)= 1- P(x=40)
Using the z statistic
Here
x= 40 mph
u= 44mph
σ= 3 mph
z=(40-44)/3=-1.33
From the z-table -1.67 = 0.9082
a) P(X>40)=
Probability exceeding the speed limit = 0.9082 = 90.82%
b) P(50<X<55)
Now
z1 = (50-44)/3 = 2
z2 = (55-44)/3= 3.67
Area for z>3.59 is almost equal to 1
From the z- table we get
P(55 < X < 60) = P((50-44)/3 < z < (55-44)/3)
= P(2 < z < 3.67)
= P(z<3.67) - P(z<2)
= 1 - 0.9772
= 0.0228
or 2.28%
Frankie is buying ingredients for a turkey dinner the bird will cost $21, and potatos cost $1.50 per pound. If his
total bill was $30 before taxes how many pounds of potatos did Frankie buy?
PLEASE HELP! GIVEE ME THE 14 ANSWERS FOR THIS FOR BRAINLIEST
Answer:
Step-by-step explanation:
oh boy
1) 9 < 16
2) -4 < 5
3) 18 > -19
4) -38 < -16
5) 6 > 4
6) -14 > -25
7) -45 > -55
8) -2 > -10
9) -4, -1, 1, 3, 6
10) -15, -13, -5, 8
11) -9, -6, -5, -1, 0
12) -4, -2, 1, 3
13) -10, -9, 7, 8, 11
14) -33, -25, -14, -4, 7
hope this helps <3
Please help!!!! 20 points !!!! I need help!!!
Answer:
d. x = 45°, y = 13.1√2
Step-by-step explanation:
Due to it being a square, each corner is 90°. The angle bisector splits the square into two triangles. These triangles are 45° 45° 90° triangles.
Half of 90° is 45°, therefore x = 45°.
When you have a 45° 45° 90° triangle, the legs of the triangle will equal each other and the hypotenuse will be the side length multiplied by √2. Therefore, y = 13.1√2.
List these by number 1-10 from least to greatest
2r + 12n (n=3 and r= 7)
Answer: 18
Step-by-step explanation:
2r+12/n
Plug in the 3 and 7
2(7)+12/3
14+4
18
Hope that helps
120
-5
Integer hellp me
Answer: 115 is the answer
Step-by-step explanation:
1. the number of enrolled female students to the total number
of students
Answer:
In fall 2019, female students made up 57 percent of total undergraduate enrollment (9.4 million students), and male students made up 43 percent (7.1 million students). Enrollment patterns for female and male students exhibited similar trends between 2009 and 2019.
Step-by-step explanation:
A single, fair 6-sided die is tossed. Find the odds in favor of rolling a 4
Answer:
1/6
Step-by-step explanation:
There is only one side of the die with a number 4, and 6 possible outcomes. Therefore the answer is 1/6
What is the slope of the line?
Answer:
[tex]\displaystyle m=-3[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I
Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (0, 4)
Point (2, -2)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [SF]: [tex]\displaystyle m=\frac{-2-4}{2-0}[/tex][Fraction] Subtract: [tex]\displaystyle m=\frac{-6}{2}[/tex][Fraction] Divide: [tex]\displaystyle m=-3[/tex][tex](0,4) \: \: \: \: (1,1)[/tex]
[tex]m = \frac{4- 1}{0- 1} \\ m = \frac{ 3}{ - 1} \\ m = - 3[/tex]
Answer[tex] \large \boxed { - 3 }[/tex]
Brian goes to school 6 hours per day, works 4 hours per day , and sleeps for 9 hours per day. What is the ratios of hours brain sleeps
Answer:
6:4:9
Step-by-step explanation:
Answer:
6:4:9 Yw
Step-by-step explanation:
Select the best answer for the question,
15. How many pages does a good résumé have?
Answer:
Two
Step-by-step explanation:
Most likely answer
In which set of points is y a function of x? A. {(1, -2), (0, 1), (1, 1), (1, 2)} B.{(1, 2), (0, 1), (1, 2), (1, 1)} C.{(2, 1), (0, 1), (1, 0), (2, 1)} D.{2, 2), (1, 1), (0, 1), (-1, -1)}
Answer:
D
Step-by-step explanation:
There is no repeated x
The required set of points is y a function of x is C.{(2, 1), (0, 1), (1, 0), (2, 1)}. Option C is correct.
What is set?Sets are an orderly collection of items in mathematics that can be expressed in set-builder or roster form.
A function is a set of ordered pairs where each value of x has only one corresponding value of y. In other words, for a function, there can be only one value of y for each value of x.
So, among the sets of points given, set D, A, and C is not a function of x because the value x=1 has two corresponding values of y.
Therefore, the set of points in which y is a function of x is set C.{(2, 1), (0, 1), (1, 0), (2, 1)} because, for each value of x, there is only one corresponding value of y.
Learn more about sets here:
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O 6) Missy walks 1/3 mile to school Select all the fractions that are equivalent to 1/3. 1/6 2/6 4/12 3/6 3/4 This is a required question G
Answer:
2/6 and 4/12
Step-by-step explanation:
When you reduce both of these fractions, they come out to 1/3.
Dividing both terms of 2/6 by 2, the greatest common factor (GCF), would equal 1/3.
And dividing both terms of 4/12 by 4, which is the GCF in this case, would equal 1/3.
How many 1/3's or thirds are there between 0 and 1 on the number line
Answer:
3
Step-by-step explanation:
if you add 1/3+1/3+1/3 itll equal 3/3 or 1
20 points
During a sale, the price of a digital camera is reduced by $63 from the
original price of $180. By what percentage is the price of the camera
reduced? *
35%
65%
117%
30%
Which equation could be used to find the area, A, of square R?
12
CLEAR
A = 12 + 24
A = 12 + 62
A = 122-62
A √6 + 12²
Which problem situation to the equation 72 - 4x = 48
Step-by-step explanation:
[tex]72 - 4x = 48 \\ 72 = 48 + 4x \ \\ 72 - 48 = 4x \\ 24 = 4x \\ 24 \div 4 = x \\ 6 = x [/tex]
4/5 of a cup of strawberries for a single pie.How many cups areneeded for 9 pies
Answer:
7 1/5 cup strawberries
Step-by-step explanation:
put it as a ratio to make it easier
for every 1 pie, you need 4/5 of a cup
if you have 9 pies, you need 9 times 4/5 of a cup of strawberries
9 times 4/5 is 7 1/5
m
Select the correct answer.
1
6
1)2
12
Which expression is equivalent to 12
12 + I
I - 6
61 + 5 if no denominator equals zero?
I
2
1
1
O A.
H
B.
12 — 31 + 2
12 91 + 20
12 + I 2
12 1- 20
12 31 + 2
12
20
12 + 31 + 2
12 + 1 - 20
C.
D
--
D.
Reset
Next
if the 6 in 14,563 was changed to a 9, how much would the value change
Answer:
It would be 30 more.
Step-by-step explanation:
14,593 - 14,563 = 30
There are 10 girls for every 12 boys. If there are 50 girls,
how many boys are there?
O a) 60
Ob) 12
O c) 52
d) 62
Answer: A
why does this keep changing to C????
Step-by-step explanation:
10x5 since there are 50 girls
so we would need to multiply 12 by the same number, so the answer is 60.
Evaluate the expression when y = -2
y2 +5y+7
Answer:
wala akong pake
Step-by-step explanation:
walaa ako paki
what is the slope of y=1/2x-1
Answer:
The slope is 1/2.
Step-by-step explanation:
I hope this helps and I hope u have an Amazing day!
expand the expression 8(x-2)
Answer:
8x - 16
Step-by-step explanation:
8(x−2)
=(8)(x+−2)
=(8)(x)+(8)(−2)
=8x−16
Caitlin's teacher wrote a row of numbers with a pattern: 75, 68, 70, 63, 65, 58, 60,... What is the rule for the pattern
Step-by-step explanation:
largest to smallest
Answer:
subtracting 7 to first and adding 2 to next
Which equation can be used to solve for in the following diagram?
sumi
nd cl
3.2°
80°
20°
Choose 1 answer:
nd c
ms
3x + 80 + 2x = 90
: 69
80 – 3.0 - 2.2 = 90
Ze wil
the
3x + 80 + 20 = 180
al, co
men
D
30 + 2.c = 80
o an
Answer:
Choice C should be the answer
Step-by-step explanation:
Because all of them adds up to 180 since it is a straight angle.
In the accompanying diagram of ABC ca is extended to D, m∠ABC = 70 and m∠BCA =50 Find m∠DAB
Answer:
120 degrees
Step-by-step explanation:
Find the diagram attached.
From the diagram;
Interior angles are m∠BCA and m∠ABC
Exterior angle is m∠DAB
The sum of interior angle of the triangle is equal to exterior
m∠BCA +m∠ABC =m∠DAB
Given
m∠ABC = 70
m∠BCA =50
m∠DAB = 70 + 50
m∠DAB = 120 degrees
Hence the measure of m∠DAB is 120 degrees
-3(4x-1) + 9x +8x if x = -9
Answer:
-42
Step-by-step explanation:
