The language arts teacher wants to know whether the students in the entire school prefer a debate or an speech. The teacher draws a random sample from the following
groups:
• All teachers in the school
• All boys in each grade
• All students in the speech club
• All students in each grade
Which group best represents the population she should take a random sample from to get the best results for her survey?
O All teachers in the school
O All boys in each grade
All students in the speech club
O All students in each grade
Use technology to construct an appropriate model of the data,
(0.1). (1, 2), (2, 3), (3,-2), (4.1)
Answer:
Quadratic model
Step-by-step explanation:
Given the data :
(0.1). (1, - 2), (2, - 3), (3,-2), (4.1)
The above data point when plotted using technology gives a quadratic model with the equation : x² - 4x + 1
With the quadratic regression model for the data above, we obtain a correlation Coefficient of 1 ; which means a perfect relationship exists between the x and y variables.
Please answer the question correctly with factual information for brainliest.
Answer:
8.9
Step-by-step explanation:
[tex]1)\ S = 80 => l = \sqrt{80}[/tex]
[tex]2)\ l = \sqrt{80} = 8.9[/tex]
Why is there a letter also on Mathematics?
I mean, there is a letter in English...
I don't know why there is a letter like 2x + 19 and x + 23.
It's really frustrating that there's a letter in Mathematics
They can just do "3*4" instead of "x*4 when x=3"
I know... I know... It's a silly question.
Answer:
Not silly, i understand but "x" is supposed to be a subsitute for a number after the many equations youll be learning in algebra. x can be anything, it isnt set to anykind of specifac number but rather an output of an equation. It is fustrating but i reccomend khan acdemy videos or math nation since they specialze in thses kinds of maths
Step-by-step explanation:
List two pairs of angles in square CDFG that are complementary
Answer:
1st pair: ∠C + ∠M
2nd pair: ∠G + ∠M
Step-by-step explanation:
Plz help me well mark brainliest if correct!!..
.
Answer:
70 ft
Step-by-step explanation:
20 + 20 + 15 + 15 = 70
If each collectible coin weighs 2.5 grams, how much do 3 collectible coins weigh all together?
A) 9.5 grams
B) 8.5 grams
7.5 grams
D 6.5 grams
Answer:
Hello! answer: 7.5 grams
Step-by-step explanation:
To find the answer we simply just do 2.5 × 3 so... 2.5 × 3 = 7.5 so 7.5 grams is the answer! Hope that helps!
What is the value of the expression shown? 10 - 16:2
[tex]10 - 16 \div 2[/tex]
A quarter has a mass of 0.006 kilograms. What place value is the six in this
number?
Answer:
It is in the thousandths place
Step-by-step explanation:
The first number after the decimal is the tenths place. 0.006
The second number after the decimal is the hundredths place. 0.006
The third number after the decimal is the thousandths place. 0,006
Hope this helps!
Find the circumference of the circle.radius of 44 in Use 3.14 or 22/7
Answer:
hi i do not know but i love the app
A company makes fifty-four million, nine hundred twenty thousand, one hundred
two widgets every year. What is this number written in standard form?
A. 54, 920, 102
B. 549, 212
C. 54, 000, 920, 102
D. 504, 920, 102
What is the problem to this one?
Answer:
45
Step-by-step explanation:
how many feet in 3 yards
Answer:
there's 9 feet
hop this help
Step-by-step explanation:
the way i got it was multiply the length value by 3
braniest plz
Answer:
there would ve 9 feet in 3 yards
laurette has 126 cards. She buys 6 more packages of cards that each have 7 cards in them. How many cards does laurette have now?
Answer:
168
Step-by-step explanation: 6 times 7 equals 42. Add 42 to 126 and Laurette has a total of 168 cards now.
The expected value of a fair 6-sided die is 3.5.
Which of the following statements are true?
Choose all answers that apply:
А
3.5 is one of the possible outcomes of rolling a fair 6-sided die.
A fair 6-sided die is more likely to land on the number 4 than the number 6.
If you rolled a fair 6-sided die a large number of times, you should expect the average of the
numbers rolled to be about 3.5.
Answer: if you roll a fair 6 sided for a large number of times the average would be 3.5
Step-by-step explanation:
Khan
5, 8, II, 14 ...
The pattern is
Next 2 terms =
Answer:
the next two terms are 17, 20
Step-by-step explanation:
add 3 to each term
Example
5+3 = 8
8+3= 11
11+3= 14 etc.
Answer:
17 And 20
Step-by-step explanation:
The pattern is add 3
Find the measure of ∠NED, not ∠CED.
Answer:
[tex] m\angle NED = 100\degree [/tex]
[tex] m\angle CED = 80\degree [/tex]
Step-by-step explanation:
By exterior angle theorem:
(9x - 8)° = (5x - 10)° + 50°
(9x - 8)° = (5x - 10 + 50)°
(9x - 8)° = (5x + 40)°
9x - 8 = 5x + 40
9x - 5x = 40 + 8
4x = 48
x = 48/4
x = 12
(9x - 8)° = (9*12 - 8)° = (108 - 8)° = 100°
[tex] \implies m\angle NED = 100\degree [/tex]
[tex] m\angle CED = 180\degree - 100\degree [/tex] (Linear pair angles)
[tex] \therefore m\angle CED = 80\degree [/tex]
[tex]\huge{ \mathcal{ \underline{ Answer }}}\: ✓ [/tex]
Measure of Exterior Angle of a triangle is equal to the sum of measures of two opposite interior angles .
From above statement we have :
[tex] 9x - 8 = 5x - 10 + 50[/tex][tex]9x - 5 x = 40 + 8[/tex][tex]4x = 48[/tex][tex]x = \dfrac{48}{4} [/tex][tex]x = 12[/tex]_____________________________
[tex] \mathrm{\angle \: NED = 9x - 8}[/tex]
[tex](9 \times 12) - 8[/tex][tex]108 - 8[/tex][tex]100°[/tex]_____________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
helppppp me please i’ll give brainliest
Answer:
[tex]C) ~As ~ X ~increases, Y ~ decreases[/tex] ✔︎
᪥༄᪥༄᪥༄᪥༄᪥༄᪥༄
hope it helps....
have a great day!!
Answer:
C will be your answer!
Step-by-step explanation:
hope it helps..
willa is shopping at the mall. An outfit that she likes has 3 different styles of the top, a choice of a skirt or slacks, and 4 different belts. How many different combination does Willa have have to choose from?
A: 2
B: 6
C: 12
D: 24
Answer:
c
Step-by-step explanation:
can anyone help pls it's hard
Answer:
[tex](A\cap B)\cap U[/tex]
Step-by-step explanation:
"And" indicates taking the intersection of two sets.
You want numbers that are in all three sets: multiples of 5, multiples of 2, and all 4-digit numbers.
There are 4 blood types, and not all are equally likely to be in blood banks. In a certain blood bank, 49% of
donations are Type O blood, 27% of donations are Type A blood, 20% of donations are Type B blood, and 4% of
donations are Type AB blood. What is the expected number of donations until the first Type AB donation is
received?
02.127
4
O24.495
25
Answer:
Step-by-step explanation:
they get 4% or 4 out of ever 100. that's 25 for one AB donation.
Evaluate. Write your answer as a fraction in simplest form.
(4/3)2
Answer:
8/ 3
Step-by-step explanation:
Answer: 8/3
Step-by-step explanation: you would multiply the numerator (top number 4) by 2 and get 8/3 as a decimal it would be 2.6 repeated and as a mixed number it would 2 and 2/3
Hope this helps (^_^)
What number is ten less than 658?
Answer:
648 is the answer
Step-by-step explanation:
658-10=648
Translate this sentence into an equation. The sum of 16 and Delia's height is 74. Use the variable d to represent Delia's height.
Determine the value of a.
Question 10 options:
A)
6
B)
10
C)
70
D)
7
Answer:
The answer is D
Step-by-step explanation:
A triangle has vertices (0, 2), (3, 1), and (6.2). What is the approximate perimeter of the triangle? Round your answer to the nearest hundredth.
Answer:
6 + 2√10 units.
Step-by-step explanation:
We can use the distance formula to find the distance between the points. The points are ,
(0,2)(3,1)(6,2)Distance 1 :-
=> D₁ = √{ (x₁ - x₂ )² + ( y₁ - y₂ )² }
=> D₁ = √{ (0-3)² + (2-1)² }
=> D₁ = √{ 3² + 1² }
=> D₁ = √{ 9+1}
=> D₁ = √10
Distance 2:-
=> D₂ = √{ (x₁ - x₂ )² + ( y₁ - y₂ )² }
=> D₂ = √{ (6-3)² + (2-1)² }
=> D₂ = √{ 3² + 1² }
=> D₂ = √{ 9 + 1}
=> D₂ = √10
Distance 3 :-
=> D₃ = √{ (x₁ - x₂ )² + ( y₁ - y₂ )² }
=> D₃ = √{ (6-0)²+(2-2)²
=> D₃ = √6²
=> D₃ = 6
→ Perimeter = D₁ +D₂ + D₃
→ Perimeter = √10 + √10 + 6
→ Perimeter = 6 + 2√10 units
Hence the perimeter is 6+2√10 units.In this composite function, (g◦f)(x) where f(x)=(X-3) and g(x)=X^2 what is (g◦f)(x) when x=1?
(g◦f)(1)=4
(g◦f)(1)=-4
(g◦f)(1)=-2
(g◦f)(1)=2
If A is the center of the circle, then which statement explains how segment ED is related to segment FD?
Answer:
ED ≅ FD because segment EF is perpendicular to a radius of circle A.
Step-by-step explanation:
The statement that explains how ED is related to FD is: ED = FD because segment EF is perpendicular to a radius of circle A.
What is Does Pendicular mean?When a segment is perpedicular to the radius of a circle, it forms a right angle at the center of the segment that is intersected by the radius of the circle.
In the diagram given, based on what perpedicular mean, ED = FD because segment EF is perpendicular to one of the radii, DA, of the circle.
Therefore, the statement that explains how ED is related to FD is: ED = FD because segment EF is perpendicular to a radius of circle A.
Learn more about perpendicular segment on:
https://brainly.com/question/1202004
I need the answer pls fast
Answer:
B. 215cm^2
Step-by-step explanation:
180 + 35
Answer: B. 215
Step-by-step explanation:
I found the answer button.
The full height is 20, and the height of the parallelogram is 10. So that means the triangles height is 20-10=10. The top and bottom sides of a parallelogram are the same, so the base of the triangle is 18-(6+5)=7. So the area of the triangle is (7x10)/2=35. The area of a parallelogram can be count that same way as a regular rectangle. So 18x10=180. Putting those two together, 35+180=215.
1 mark question plese give me answer
Answer:
x = 110
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
x° is an exterior angle of the triangle, then
x = 60 + 50 = 110