Answer:
The answer is B.
Step-by-step explanation:
The standard error (SE) of a statistic (usually an estimate of a parameter) is the standard deviation of its sampling distribution.
Formula of the standard error of the means is standard deviation divided by square root of the sample size.
SE = δ/√n
This formula also gives the standard deviation of the sample means.
The answer is standard deviation of the sample (B).
For example, "The notation for standard error can be any one of SE, SEM (for standard error of measurement or mean)."
(I’ll give brainliest)
Answer:
letter choice A and C
Step-by-step explanation:
jshdhd
What is the factored form of 64g3+8?
O. (4g + 2) (16g2 + 8g - 4)
O. (4g + 2) (16g2 - 8g - 4)
O. (4g + 2) (16g2 + 8g + 4)
O. (4g + 2) (16g2 - 8g + 4)
Answer:the answer is D
Step-by-step explanation:
¿Cuántas veces más grande es 5 x 106 que 5 x 102?
Answer/Step-by-step explanation:
5 x 106 es la más grande ecuacióne.
5 x 106 = 530
5 x 102 = 510
530 > 510
15 kg more sugar can be bought as a result of the 20% increase of the price of sugar at Tk. 4500, what is the price of the sugar at present?
Answer:
The current price is Tk. 3750
Step-by-step explanation:
Given:
[tex]\%\ Increase = 20\%[/tex]
[tex]New\ Price = Tk.\ 4500[/tex]
Required
Determine the current price
Percentage increment is calculated using the following formula:
[tex]\%\ Increase = \frac{New - Old}{Old}[/tex]
In this case, we have:
[tex]\%\ Increase = \frac{New\ Price - Old\ Price}{Old\ Price}[/tex]
Substitute values for % increase and New Price
[tex]20\% = \frac{4500 - Old\ Price}{Old\ Price}[/tex]
Cross Multiply
[tex]20\% *Old\ Price= 4500 - Old\ Price[/tex]
Convert percentage to decimal
[tex]0.20*Old\ Price= 4500 - Old\ Price[/tex]
Collect Like Terms
[tex]Old\ Price+0.20*Old\ Price= 4500[/tex]
Factorize:
[tex]Old\ Price(1+0.20)= 4500[/tex]
[tex]Old\ Price(1.20)= 4500[/tex]
Solve for Old Price
[tex]Old\ Price= \frac{4500}{1.20}[/tex]
[tex]Old\ Price= 3750[/tex]
Hence, the current price is Tk. 3750
Use <, >, or = to compare the following
5 and -8
7 and -11
Answer:
5 > -8 , and 7 > -11
Step-by-step explanation
5 and 7 are greater than negative numbers
You work delivering food for a local farmer. You sell eggs from the farm at a price of 3 for $2.00, 6 for $3.50, 12 for $6.00, and 24 for $13.00. What is the best deal for buying eggs?
A.
3 eggs for $2
B.
6 eggs for $3.50
C.
12 eggs for $6.00
D.
24 eggs for $13.00
Answer:
The 12 egg offer.
Step-by-step explanation:
Find the unit price for each. Then make them common denominators. Like 3 eggs for 2 dollars is for 1 egg, 2/3 dollars. After getting the unit price for all of them, get the common denominators of 24. Then we see which numerator is the lowerst, since we want the lowerst price. We find 12/24, or the 12 egg offer.
Airpods originally cost $120. after a discount, the Airpods cost $84. What is the percent decrease for the Airpods
Answer:
the percent can be 36% or 35% but i would go for 36%
Ian is buying apples at the farmer’s market.
The apples come in packages of different sizes.
Choose the package that is the best buy.
A. 2 lb for $4.98
B. 5 lb for $12.25
C. 8 lb for $18.80
D. 10 lb for $23.70
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Step-by-step explanation:
1. 6s⁹ t³
2. y³ + 3y² + 3y + 1
hope it helps!
Help will give braniest answer to person who is correct find the degree measure of each angle in the triangle
Answer:
Angle I = 90 degrees
Angle J = 61 degrees
Angle K = 29 degrees
Step-by-step explanation:
Angle I is given
We know that the angles in all triangles add up to 180. Since we are given that angle I is equal to 90 degrees, we now know that angle J + angle K = 90 degrees:
(5x+26) + (2x+15) = 90
Solve for X:
7x + 41 = 90
7x = 49
x = 7
Angle J = (5x + 26) = (5(7) + 26) = 61
Angle K = (2x + 15) = (2(7) + 15) = 29
Checking your work: 61 + 29 = 90
Answer:
[tex] m\angle I = 90\degree [/tex]
[tex] m\angle J= 61\degree [/tex]
[tex] m\angle K = 29\degree [/tex]
Step-by-step explanation:
(5x + 26)° + (2x + 15)° = 90°
(5x + 26 + 2x + 15)° = 90°
(7x + 41)° = 90°
7x + 41 = 90
7x = 90 - 41
7x = 49
x = 49/7
x = 7
[tex]m \angle \: I= 90 \degree \\ \\ m \angle \: J=(5x + 26) \degree = (5 \times 7 + 26) \degree \\ \\ m \angle \: J = (35+ 26) \degree \\ \\ m \angle \: J= 61\degree\\ \\ m \angle \: K=(2x + 15) \degree = (2 \times 7 + 15) \degree \\ \\ m \angle \: K = (14+ 15) \degree \\ \\ m \angle \: K = 29\degree[/tex]
once there was a fox in a jungle. He was so hungry that he started moving in the forest searching for food. complete the story
Answer:
Step-by-step explanation:
he found some grapes
he tried to reach them but couldnt
he eventually gave up
so he just said "theyre
sour anyways"
so he said
Simplify. Rewrite the expression in the form 8^n. (8^−8 )(8^3)
Answer:
Step-by-step explanation:
Which of the decimal value given below is the largest?
0.52
0.052
0.0052
Can someone help me with this please.
Place the following numbers in ascending order. 20/7, 3.1, 2 3/4 (Answer should be in original form
2.1,2.6,3.1
Step-by-step explanation:
20/7=2.6
2 3/4=9/4
9/4=2.1
3.1
Angles 1 and 2 are complementary and congruent. what is the measure of angle 1? 30° 45° 50° 75°
Answer:
complementary means that their measures add up to 90 degrees. since they're also congruent, they have to be the same measure.
90/2= 45 degrees which is your answer
Step-by-step explanation:
I hope this helps :)
Answer:
45 degrees
Step-by-step explanation:
i just took the test on edge
Cindy sells wooden toys for $5 each and plastic toys for $3 each for a charity event. Last weekend she sold 42 toys, and she raised a total of $174. How many wooden toys did she sell that weekend?
Answer:
34
Step-by-step explanation:
It can't be higher than 34 since 174÷5= 34.8
HELP 30 pts:( Evaluate 2A - 3B for A = 7 and B = -2. 20 9 8
Answer:
20
Step-by-step explanation:
what is the measure of angle 4??? please help asap!!!
===========================================================
Explanation:
Angle 3 and the 100 degree angle are corresponding angles. They are both in the southeast quadrant of their four-corner angle configuration. Assuming the lines that look horizontal are parallel, this would mean angle 3 is 100 degrees. Recall that corresponding angles are congruent when we have parallel lines.
Once we know that angle 3 = 100, we will use this to find angle 4.
Angles 3 and 4 add to 180. They form a straight angle or straight line.
(angle3)+(angle4) = 180
(100) + (angle4) = 180
angle4 = 180-100
angle4 = 80 degrees
Is Y=MX^2+B a function?
Answer:
I don't think so but I am not for sure
Step-by-step explanation:
the 20% discount on a $55 on a sweatshirt
Answer:
44
Step-by-step explanation:
OK easy for some (really a lot) just help me
Find the area of Pentagon ABCDE in which BL perpendicular to AC, CM perpendicular to AD, EN perpendicular to AD such that AC = 8 cm, AD = 12 cm, BL = 4 cm, CM = 6 cm and EN =5cm.
Answer:
Area ABCDE = 82 cm²
Step-by-step explanation:
ABCDE = ΔEAD + ΔDAC + ΔCAB
ABCDE = (12×5)/2 + (12×6)/2 + (8×4)/2 = 30+36+16 = 82
The price of a share of stock in JZMobile was $74 two weeks ago. Seven weeks ago, the price was $59 a share. Which linear equation to find the price p of a share of JZMobile w weeks from now?
A. p=5w+64
b. p=104-15w
c. p=80-3w
d. p=68+3w
ILL GIVE BRAINLIEST IF YOU EXPLAIN
Given:
The price of a share of stock in JZMobile was $74 two weeks ago.
Seven weeks ago, the price was $59 a share.
To find:
The linear equation to find the price p of a share of JZMobile w weeks from now.
Solution:
Let, p be the price of a share of JZMobile w weeks from now.
The price of a share of stock in JZMobile was $74 two weeks ago. It means, the graph of linear equation passes through (2,74).
Seven weeks ago, the price was $59 a share. It means, the graph of linear equation passes through (7,59).
The graph of linear equation passes through two points (2,74) and (7,59). So, the linear equation is
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-74=\dfrac{59-74}{7-2}(x-2)[/tex]
[tex]y-74=\dfrac{-15}{5}(x-2)[/tex]
[tex]y-74=-3(x-2)[/tex]
[tex]y-74=-3x+6[/tex]
Adding 74 on both sides, we get
[tex]y=-3x+6+74[/tex]
[tex]y=-3x+80[/tex]
[tex]y=80-3x[/tex]
Therefore, the correct option is C.
Write the equation of the line in slope-intercept form that goes through the points: (2,4) and (7,-1)
Answer:
y= -x+8
Step-by-step explanation:
slope int. form: y=mx+b
first, we need to find the slope (m)
the two points are (2,4) and (7,-1).
to find the slope we do (y2-y1)/(x2-x1)
doing this we get -5/5=-1
now we can plug in point (2,4) and the slope into y=mx+b
doing this we get:
4=-1(2)+b
4=-2+b
b=8
now we have the equation:
y= -x+8
Amanda and Alexis live 4 miles apart. They decide to start walking toward each other's houses at the same time. Amanda walks at a rate of 3.5 miles per hour and Alexis walks at a rate of 4 miles per hour. How long will it take for them to meet? Round to the nearest hundredth of an hour. [Remember: D = (r)(t)] Two boxes, one with Amanda and 3.5 m p h. To the right is the other box with Alexis and 4 m p h. Below, the boxes there is a bracket, halfway between, pointing to 4 miles. hour
Answer:
t = 0.534 seconds
Step-by-step explanation:
Given that,
Amanda and Alexis live 4 miles apart.
Speed of Amanda = 3.5 mph
Speed of Alex = 4 mph
We need to find how long will it take for them to meet.
As they start walking toward each other's houses at the same rate. Their relative velocity will be :
v = 3.5 mph + 4 mph
= 7.5 mph
Let after time t they will meet.
[tex]t=\dfrac{d}{v}\\\\t=\dfrac{4}{7.5}\\\\=0.534\ s[/tex]
Hence, after 0.534 seconds they will meet.
Answer:
the person above me is right but the answer is 0.53 on edge 2020
Step-by-step explanation:
Which relations are functions?
Select Function or Not a function for each graph.
Answer:
The graph is a function
General Formulas and Concepts:
Algebra I
Vertical Line Test - each x-value must have its own y-valueStep-by-step explanation:
When we apply the Vertical Line Test to the parabola in the graph, we see that it passes it. Therefore, the graph shown is a function.
What is the solution to the system below?
y = 5x - 9
y = x + 3
What is the solution for the system below?
y = 5x - 9
y = x + 3
ANSWER : x = 3 and y = 6
DISCUSSIONThe method of elimination is a method by which one of the variables is eliminated so that the remaining variables are subsequently searched for the satisfactory value.
Is knownEquation 1 : y = 5x - 9
Equation 2 : y = x + 3
Askedx?
y?
AnsweredEquation 1
y = 5x - 9
- 5x + y = - 9
5x - y = 9
Equation 2
y = x + 3
- x + y = 3
Elimination Equation 1 dan 2
5x - y = 9
- x + y = 3
--------------- +
4x = 12
x = 3
Obtained x = 3
Substitute x = 3 to equation 2
- x + y = 3
- ( 3 ) + y = 3
- 3 + y = 3
y = 3 + 3
y = 6
PROOF IF x = 3 and y = 6
5x - y = 9
5 ( 3 ) - ( 6 )
15 - 6 = 9
Conclusionso the x and y values for the system are
x = 3 and y = 6
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DETAIL ANSWERGrade : 8th
Course : Mathematics
CHAPTER : Variable Equation 2
Code : 8.2.5
What type of exponential function is f(x)=0.75(2.1)x
What is the function's percent rate of change?
Select from the drop-down menus to correctly complete each statement.
The function is an exponential_____ function.
The percent rate of change of the function is _____%.
Answer:
Growth110%Step-by-step explanation:
The function is an exponential growth function
Because 2.1 > 1The percent rate of change:
2.1 - 1 = 1.1 ⇒ 1.1*100% = 110%Answer:
the function is an exponential Growth function.
the percent rate of change of the function is 110%.
Step-by-step explanation:
Answer is correct, i took the k12 test.
what is the gradient of a line with an equation of 3x-2y-6=0
Answer:
Slope m = 3/2
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define Equation
3x - 2y - 6 = 0
Step 2: Rewrite
Find slope-intercept form
Subtract 3x on both sides: -2y - 6 = -3xAdd 6 on both sides: -2y = -3x + 6Divide -2 on both sides: y = 3/2x - 3Step 3: Break Function
Identify Parts.
Slope m = 3/2
y-intercept b = -3