Answer:
In distributions in which many scores differ greatly from the distribution’s mean, the bigger the:
D) standard deviation.
Step-by-step explanation:
The more spread out or variable a data distribution is, the greater its standard deviation. A standard deviation is the square root of the variance. A mean is an average of all set of available data. It is obtained by dividing the value of data by the number of the data set. The standard deviation is the statistics that basically measure the distance from the mean, and is calculated as the square root of variance determined by each data point relative to the mean.
PLEASE HELP ME I NEED HELP PLEASE HELP
Answer:
1st question is 1:2
2nd question is 5
Step-by-step explanation:
15 times two is 30, so if you divide both 15 and 30 by 15, you get 1:2
Divide 300 and 60 and you get 5.
Answer:
1/2 5
Step-by-step explanation:
so the push ups you would divide 300 by 60 and the ratio is 1/2 because 15 plus 15 equals 30 so yea its 1/2
PLEASE HELP ASAP!!!!!!!!! I REALLY NEED IT PLEASE
Answer:
[tex]\displaystyle d = 2\sqrt{10}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point R(-2, -4)
Point S(-8, -6)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d
Substitute in points[DF]: [tex]\displaystyle d = \sqrt{(-8+2)^2+(-6+4)^2}[/tex](Parenthesis) Add: [tex]\displaystyle d = \sqrt{(-6)^2+(-2)^2}[/tex][√Radical] Exponents: [tex]\displaystyle d = \sqrt{36+4}[/tex][√Radical] Add: [tex]\displaystyle d = \sqrt{40}[/tex][√Radical] Simplify: [tex]\displaystyle d = 2\sqrt{10}[/tex]Luke is also making pizzas. He started with 4 1/2 cups of pepperoni. He has used 2/3 of his pepperoni. How many cups of pepperoni has he used so far?
2 cups
4 3/5 cups
3 cups
4 1/3 cups
Explain your reasoning.
Answer:
3 cups
Step-by-step explanation:
Luke has 1 1/2 cups of pepperoni left
John states that the product of two real numbers is a real number. Extending this to imaginary numbers John states that the product of two imaginary numbers must be imaginary. Is his statement correct?
Answer:
no because these "imaginary numbers" can have the same value as 2 real numbers that add up to a real number. Example:7 3+4=7 x+y (Algebra so not real numbers)= infinite possibilities
Step-by-step explanation:
Combine any like terms in the expression. If there are no like terms, rewrite the expression.
49r² s+42r² s+28r² s–41r² s
Answer:
78r²s
Step-by-step explanation:
well you add 49 and 42 and 28 and subtract 41 bc they have the same symbols afterwards, and you get that
Below is a scale drawing of a deck for a house What are the length and width, in yards, of the deck represented by the scale drawing?
What is the area, in square yards, of the deck represented by the scale drawing?
Please help me hurry
Answer:
The length of the house is 32 yards and the width is 16 yards and the area of the deck is 512 yards. I got my answer by multiplying the length and the width to get an answer of 512.
Step-by-step explanation:
You have to multiply 16 centimeters by 2 and multiply 8*2. Which is 32 and 16 and after you do that you multiply them 32*16=512
what is called group of cloths?
Step-by-step explanation:
The collective noun of clothes is suit.
Solve the equation 6-7x=43
Answer:
Solution
=
−
3
7
7
Step-by-step explanation:
I got that answer right on ed2020
Jenna and Luke each earned 80 points while playing a game. Luke received 8 additional points for completing the
bonus round Jenna received n fewer points than Luke did in the bonus round.
A Create an expression using n that shows Jenna's total number of points.
3. Jenna received 2 fewer points than Luke in the bonus round, how many total points did she earn?
Answer:
80-2= n
Step-by-step explanation:
jenna has 2 fewer points thefore 80-2= n, n is how much she got ( she got 78 points)
Judy began her proof of the converse of the Pythagorean theorem by drawing triangle ABC with side lengths in inches of 5, 12, and 13. She then showed that 5^2 + 12^2=13^2 as follows.
5^2+12^2=13^2
25+144=169
169=169
Next, she drew triangle DEF, with two of the sides forming a 90° angle. If she has done her proof correctly so far, which of these is a length of one of the sides forming the 90° angle? Select two that apply.
A.3 in
B.4 in
C.5 in
D.12 in
E.13 in
Answer:
5 and 12
Step-by-step explanation:
If Judy has done her proof correctly, then the length of one of the sides forming the 90° angle is, 5. So Option C is one of the correct option.
What is Pythagoras theorem?It is the most important theorem of mathematics, which tells us the relationship between sides of the right angle triangle, which are known as Base(A), Height(B), Hypotenuse(H).
Pythagoras theorem,
H² = A² + B²
Given that,
Judy began her proof of the converse of the Pythagorean theorem
The triangle ABC with side lengths in inches of 5, 12, and 13
She showed that 5² + 12² = 13²
Now, In triangle DEF
One of the side length = ?
Suppose, the unknown side length = x
Let, two sides which having length,
base = 3 in.
height = 4 in.
Now, by using Pythagoras theorem
It can be written as,
H² = A² + B²
x² = 3² + 4²
Hence, the third unknown side is of 5 in.
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Math!! The answer is c. I think but can somebody explain the steps that would got me c. I need it.
9514 1404 393
Answer:
Use the Pythagorean theorem: (5/8)^2 +(3/2)^2 = (13/8)^2 ⇒ right triangle
Step-by-step explanation:
Check to see if the numbers satisfy the Pythagorean theorem.
(5/8)^2 + (3/2)^2 = (13/8)^2
25/64 + 9/4 = 169/64
25/65 +144/64 = 169/64 . . . . . . . true. The triangle is a right triangle.
__
If a, b, c represent the lengths of the sides, least to greatest, then ...
a^2 + b^2 > c^2 . . . . acute triangle
a^2 + b^2 = c^2 . . . . right triangle
a^2 + b^2 < c^2 . . . . obtuse triangle
_____
Additional comment
A triple of integers that satisfy the Pythagorean theorem (form a right triangle) is called a "Pythagorean triple." One you see often, and that has the special property that it is the only triple that is an arithmetic sequence is (3, 4, 5). A couple of other common ones are (5, 12, 13) and (7, 24, 25).
Any of these can be scaled by a common factor to make sides of a right triangle. Here, we have (5, 12, 13) scaled by a factor of 1/8 to make (5/8, 12/8, 13/8) = (5/8, 3/2, 13/8) — the numbers in the problem statement.
If you're aware of these common triples, you can check to see if they are being used in any right-triangle problem you may run across. Recognizing that one of these applies can save you the effort of working out the squares and/or root that would otherwise be involved.
Order the percents,decimals and fractions from least to greatest. Put your answer in percent form.9.2%, 2/5, 0.065, 6.56
Answer:
0.65%, 9.2%, 40%, 656%
Step-by-step explanation:
see answer
Ricki took a survey in the fifth grade and found that 2/3 of the students ride the bus to school, and 1/4 of the students walk. What fraction of the fifth-grade students either ride the bus or walk to school?
Answer:
11/12 of the 5th grade ride the bus or walk to school.
Step-by-step explanation:
First you have to find a LCD (least common denominator) for both fractions which is 12.
Second you have to multiply the numerator by whatever you multiplied the denominator by for both fractions
Finally you add both fractions together and you get 11/12
ASAP SOLVE IT 30 POINTS
Answer:
ij3ij4
Step-by-step explanation:
lol
eieiedheddehuehdhdeiuqhedjof3r0g-n5rw
Solve by using matricies.
4x + 9y = 17
6x - 3y = 8
( ? , ? )
Write your answer as a decimal rounded to the nearest thousandth.
Answer:
x = 1.55
y = 1.86
Step-by-step explanation:
Determinant of the original matrices;
Do = -3(4) -9(6)
Do = -12 - 54
Do = -66
For Dx
Replace the answer in the first column and fine the determinant
Dy = 17(-3) - 8(9)
Dy = -51-72
Dy = -123
y = Dy/Do
y = -123/-66
y = 1.86
Get Dx
Dx = 4 (-8) - 17(6)
Dx = -32-102
Dx = -134
x = Dx/Do
x = -132/-66
x = 1.55
Solve 18 divided 5/6
a.21 3/5
b.18 1/2
c.13/24
d.23/6
What is modeled by the graph segment between B and C?
A graph with time on the x-axis and height on the y-axis. The graph increases from point A to point B, is constant between points B and C, increases between points C and D, and then decreases from point D to point E.
The height is remaining constant over time.
The time is remaining constant while the height changes.
The height is increasing.
The height is decreasing.
Answer:
pretty sure its A)The height is remaining constant over time.
if its not then I'm sorry ＞﹏＜
also have a great day/night! ^u^
Step-by-step explanation:
From Edge
What is the surface area of the rectangular prism below?
A. 1260 units2
B. 700 units
C. 823 units2
D. 740 units2
Answer:
700
Step-by-step explanation:
A=2(wl+hl+hw)=2·(12·14+7·14+7·12)=700
The value of the surface area of the rectangular prism is,
SA = 700 units²
What is mean by Rectangle?A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.
Given that;
In a rectangular prism,
Length (l) = 14
Width (w) = 12
Height (h) = 7
We know that;
The surface area of a rectangular prism is given by:
SA = 2 (lh +wh + lw ) Square units.
Hence, We get;
SA = 2 (14 x 7 + 12 x 7 + 14 x 12
SA = 2 (98 + 84 + 168)
SA = 2 x 350
SA = 700 units²
Thus, The value of the surface area of the rectangular prism is,
SA = 700 units²
Learn more about the rectangle visit:
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I need help extra points and I will mark brainllist
Answer:
1
Step-by-step explanation:
Divide 53 by 4
You get 13.25 which means each kid will receive 13 balloons.
Now take .25 and multiply by 4. You get 1! There will be one balloon left over.
Choose the one expression below that is true.
A. (5 + 4) + 10 = 5 + (4 + 10)
B. 12 - (17 + 1) = (12 - 17) + 1
C. (5 - 4) + ha = 5 - (4 + 10)
D. 17 - (9 + 10) = (17 - 9) + 10
Answer:
the one expression that is true is
A. (5 + 4) + 10 = 5 + (4 + 10)
Hope it will help :)❤
Part C
If you use 10^-4 as the power of 10, what is the mass of an average grain of rock salt?
Answer:
120 x 10^-4
Step-by-step explanation:Multiplying 1.2 by 10^2 and multiplying 10^-2 by 10^-2.Gives 120 x 10^-4 So, the mass of an average grain of rock salt is 120 x 10^-4 .
Answer:
Multiplying 1.2 by 10^2 and multiplying 10^-2 by 10^-2 gives 120 x 10^-4. So, the mass of an average grain of rock salt is 120 x 10^-4.
Step-by-step explanation:
Edmentum answer
hope this helps :)
Someone pls help
There fraction!!
3/4+2/3=
Help please
Answer:
5/7 your answer is.....
Answer:
17/12. or 1 5/12
Step-by-step explanation:
caculator.
pls help what is 100 × 100 + 59 ×9???
I need help asap!!!!
Answer:
Amount charged for downloading individual songs = x dollars
Amount charged for downloading an entire album = y dollars
In respect to person A:
6x + 2y = 25.92
3x + y = 12.96
y = 12.96 - 3x
In respect to person B:
4x + 3y = 33.93
Putting the value of y from the first equation in the second, we get
4x + 3(12.96 - 3x) = 33.93
4x + 38.88 - 9x = 33.93
- 5x = - 4.95
x = 0.99 dollars
Putting the value of x in the first equation, we get
y = 12.96 - 3x
= 12.96 - 2.97
= 9.99 dollars
I'm having trouble with this, Unfortunately my teacher has a tight schedule tomorrow so I can't ask her, so I decided to come here, can someone clear it up. I'm not looking for the answer just help on it.
Use the function f(x) to answer the questions:
f(x) = 2x2 − 5x + 3
Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)
Part B: Is the vertex of the graph of f(x) going to be a maximum or a minimum? What are the coordinates of the vertex? Justify your answers and show your work. (3 points)
Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph. (5 points)
Answer:
Step-by-step explanation:
Part A)
For equation f(x) = 2x² - 5x + 3, to find x intercepts let y=0 then solve x,
2x² - 5x + 3 = 0 -> (2x + 1)(x -3) = 0 , can find x - intercepts from here
x = ____ and ____
Part B)
To find if vertex is a max or min, compare to equation y = ax² + bx +c
if a > 0 then parabola opens up and vertex is a minimum.
if a < 0 then parabola opens down and vertex is a maximum,
thus vertex is a minimum in this problem
to solve vertex set x = -b / 2a = 5 / 2(2) = 5/4
solve for y value
.... vertex is then at point ( 5/4 , y value found)
Part C)
Can plot the intercepts and vertex points
How do you solve 20-10/5+2•2
Answer: 22
Step-by-step explanation:
20 - 10/2 + 2 . 2
10/5 = 2
20 - 2 + 2 . 2
= 20 - 2 + 4 = 22
hope this helps
Multiplying polynomials: simplify
(4a+2)(6a^2-a+2)
Answer:
24a³ - 16a² + 6a + 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Algebra I
Terms/CoefficientsExpanding by FOIL (First Outside Inside Last)Step-by-step explanation:
Step 1: Define
(4a + 2)(6a² - a + 2)
Step 2: Expand
Expand: 24a³ - 4a² + 8a - 12a² - 2a + 4Combine like terms (a²): 24a³ - 16a² + 8a - 2a + 4Combine like terms (a): 24a³ - 16a² + 6a + 4The distance a boy travels while hiking is a function of how fast he hikes and how long he hikes at this rate. The boy usually maintains a speed of miles per hour while hiking. Let t represent the input variable. Let h represent the function, and h(t)t the output variable. Evaluate and write a sentence describing its meaning. Write the result as an ordered pair.
Answer:
The distance you travel while hiking is a function of how fast you hike and how long you hike at this rate. You usually maintain a speed of three miles per hour while hiking.
Answer:
h(t)=3t
,where h(t) represents the distance we travel while hiking in time t which is the dependent variable.
Step-by-step explanation:
The distance we travel while hiking is a function of how fast we hike and how long we hike at this rate.
The maintained speed while hiking= 3 miles per hour
If t represent the time of hiking which is independent variable, and h(t) represents the distance we travel while hiking which is dependent variable.
Then, h(t)=3th(t)=3t
What is the answer to 2z+12=30
find the value of each variable
Step-by-step explanation:
4/11 = 24/n
By Cross-multiplying, we have 4n = 11 * 24.
=< 4n = 264, n = 66.
Answer:
66Step-by-step explanation:
4/11 = 24/n4n = 264 ( cross multiplication ❌ )n = 264/4 = 66I HOPE THAT THIS ANSWER HELPS YOU