Answer:
How many minutes does it take to travel to school?
Step-by-step explanation:
A statistical question means you expect variability in the responses.
For instance, if you look at the first question, there's only 1 answer, so there's no variability. If you look at the second question, there's also only 1 answer.
How many minutes does it take to travel to school?
======================================================
Explanation:
Choice A is not a statistical question because we don't need to use statistics to find the answer. We simply count out the number of even numbers between 10 and 20. There's no need to draw a random sample of elements and do statistical analysis.
The same goes for choice B as well. There are 7 letters in this word and this value does not fluctuate/change.
Therefore we rule out choices A and B.
Choice C on the other hand has its answer vary depending on which person you ask. If you ask enough people, then you can find the average number of minutes, which is one tool to do statistics. This variable is considered a random variable (RV).
What method would you choose to solve the
equation 2x- - 7 = 9? Explain why you chose this
method.
Answer:
2x2 - 7 = 9
Step-by-step explanation:
The factoring method can be chosen to solve the equation 2x2 - 7 = 9. It is one of the easiest methods as we can isolate the variable by factoring out the GCF and obtaining the values.
Hope it helps!!!brainliest pls!!!
solve the equation..
[tex]\\ \sf\longmapsto \dfrac{1}{4}y-7=\dfrac{1}{9}y[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{4}y-\dfrac{1}{9}y=7[/tex]
[tex]\\ \sf\longmapsto \dfrac{9-4}{36}y=7[/tex]
[tex]\\ \sf\longmapsto 5y=36(7)[/tex]
[tex]\\ \sf\longmapsto 5y=252[/tex]
[tex]\\ \sf\longmapsto y=50.4[/tex]
Frank can mow lawns at a constant rate of 6/5 lawns per hour. How many lawns can Frank mow in 50 hours?
Answer:
60 lawns
Step-by-step explanation
6/5 lawns per hour times 50 hours = 60 lawns.
rate x time
Help me out I’m also at done!!!
Answer: 68
Step-by-step explanation:
(7-(-1))^2+(-2)^2
8^2+4
68
Answer:
im sry if i get it wrong i think it is 32
Step-by-step explanation:
10 is 1/10 of
what is it?
WILL MARK BRAINLIEST Solve the following problems. Write the complete proof in your paper homework and for online (only) complete the probing statement (if any) that is a part of your proof or related to it. b Given: FD ⊥ AB ∠A ≅ ∠B Prove: ∠F ≅∠CEF
Answer:
AED congruent to FEC
Step-by-step explanation:
If you look closely, BOth of the angles are vertical.
How much more is required to make 780 g to 1 Kg ?
Answer:220g
Step-by-step explanation:
1 kg is equivalent to 1000g, therefore 1000g - 780g = 220g
subtract 4 1/2 - 2 1/5?
Answer:
2.3 (decimal form)
Step-by-step explanation:
Convert 4 1/2 and 2 1/5 into improper fractions.
4 1/2 -> 9/2, 2 1/5 -> 11/5
Then you subtract, find the LCD (Least Common Denominator) and then you can combine.
Decimal form of answer: 2.3
Exact form of answer: 23/10
Mixed number form: 2 3/10
Any of those work! ⬆
For what value of x is the given parallelogram a rhombus?
Answer:
[tex]\sf x = 6[/tex]
solving steps:
[tex]\sf in \ a \ rhombus \ the \ opposite \ angles \ are \ equal[/tex]
[tex]\hookrightarrow \sf 7x + 4 = 9x - 8[/tex]
[tex]\hookrightarrow \sf 7x -9x = - 8-4[/tex]
[tex]\hookrightarrow \sf -2x = - 12[/tex]
[tex]\hookrightarrow \sf x = 6[/tex]
How can i use scatter plots to analyze two sets of data?
Step-by-step explanation:
A Scatter Analysis is used when you need to compare two data sets against each other to see if there is a relationship. Scatter plots are a way of visualizing the relationship; by plotting the data points you get a scattering of points on a graph.
HELP! 7-10 I need help with.
9514 1404 393
Answer:
7. odd angles, 143°; even angles, 37°
8. odd angles, 159°; even angles, 21°
9. even angles, 34°; odd angles, 146°
10. even angles, 29°, odd angles, 151°
Step-by-step explanation:
Angles 1 and 3 are vertical angles, so are congruent. The same can be said of angles 2 and 4. Each odd-numbered angle is supplementary to each even-numbered angle.
__
7. m∠1 = m∠3 = 143°, m∠2 = m∠4 = 180° -143° = 37°
8. m∠1 = m∠3 = 159°, m∠2 = m∠4 = 180° -159° = 21°
9. m∠2 = m∠4 = 34°, m∠1 = m∠3 = 180° -34° = 146°
10. m∠2 = m∠4 = 29°, m∠1 = m∠3 = 180° -29° = 151°
Angle θ forms a reference angle that is below the positive x axis (in quadrant IV). What will be the signs on the sine and cosine of angle θ?
Answer:
sin(θ) is negative, cos(θ) is positive
Step-by-step explanation:
Cosine corresponds to the x-coordinate within the unit circle, sine corresponds to the y-coordinate. In quadrant I, they are both positive, in quadrant II, x is negative whilst y is positive, and you would just continue by how they correspond as show in the unit circle, therefore, in quadrant IV, x is positive, y is negative.
A sports analyst determines that the number of points
scored in a basketball game is related to the number of
shots taken during the game. The least-squares
regression line is V = 5.0 + 1.2x, where y is the predicted
number of points scored and x is the number of shots
taken.
In one game, a team takes 50 shots and the residual is
10. How many points were scored by this team in this
game?
O 45
O 55
O 65
O 75
Answer:55
Step-by-step explanation:
i had that question in my test
Answer:
the person above me is correct!
Step-by-step explanation:
3) g(x) = 3x - 5
f(x) = x² +3
Find g(x) + f(x)
A) x2 + 3x - 2
C) x² - 4x + 6
B) x² – 3x - 2
D) -x - x + 1
Answer:
C. X²-4X+6
MY ANSWER(not sure)
what is 44:20 = ?:5 ?
Answer:
11:5Step-by-step explanation:
[tex]44:20[/tex]
Cancel common factor : 4
[tex]44 \div 4 = 11 \\ 20 \div 4 = 5 \\ 11:5[/tex]
The ratios are 44:20=11:5
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
The given ratios are 44:20 = ?:5
we have to find the number in question mark place.
Let question mark be taken as x.
The ratios can be written in the form of fraction
44/20=x/5
Apply cross multiplication
44×5=20x
220=20x
Divide both sides by 20
x=220/20
x=11
Hence, the ratios are 44:20=11:5
To learn more on Ratios click:
https://brainly.com/question/13419413
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We reached our goal by helping 2000 customers this month which is 14% more than last month. That means we must have helped how many customers last month?
Answer:
1754
Step-by-step explanation:
114% : 2000
100% : x
x =
[tex]2000 \times 100\% \div 114\% = 1754 \: customers \\ [/tex]
A cylinder has radius 9 inches and height 15 inches. A cone has the same radius and height
Find the volume of the cylinder
Find the volume of the cone
What fraction of the cylinder's volume is the cone's volume?
Answer:
See below
Step by step explanation:
Step-by-step explanation:
For cylinder:
r = 9 inches
h = 15 inches
[tex]V_{cylinder}=\pi r^2 h[/tex]
[tex]\implies V_{cylinder}=3.14 (9)^2 (15)[/tex]
[tex]\implies\huge\purple{ V_{cylinder}=3,815.1\:inch^3}[/tex]
[tex]V_{cone}=\frac{1}{3} V_{cylinder}[/tex]
[tex]\implies V_{cone}=\frac{1}{3}\times 3,815.1[/tex]
[tex]\implies \huge\orange{V_{cone}=1,271.7\: inch^3}[/tex]
Cone's volume is one third of the cylinder's volume.
GIVING EXTRAS POINTS AND BRAINLIEST
Answer:
p<6
Step-by-step explanation:
this basically means she can buy 6 pounds or less
Answer:
p<7
Step-by-step explanation:
Twice the sum of a number and 9 is 30
Translate the statement into a mathematical equation & solve
Answer:
2x+9 is the equation
x = 10.5
Step-by-step explanation:
2x + 9 = 30
2x = 30 - 9 = 21
x = 21 ÷ 2 = 10.5
Hope this helps!
2. Change from dog/cat to tails/heads. DDC = TTH CDC = __________ DCD = __________ CCD = __________ DDD = __________ CCC = __________ DCC = __________ CDD = __________
Answer:
2. Change from dog/cat to tails/heads.DDC = TTH CDC = HTH DCD = THT CCD = HHT DDD = TTT CCC = HHH DCC = THH CDD = HTT
The factor tree below provides the factors of 18.
18
N.
2
9
3
3
What is the prime factorization of 18?
2 x 3
2 x 9
2 x 3x3
02x3x9
Answer: it is (c)
i hope this helped :)
What is the value of x (7x-1) (6x-1) now
Answer:
42
Step-by-step explanation:
Its impossible tto calculate x there.
But i can simply the expression for you...
42x²-13x+1
What is the answer to 1+1
Answer:
5
Step-by-step explanation:
this is easy
Answer:
2
Step-by-step explanation:
Which of the equations or inequalities below are true?
A. 8-6<3
B. 8-6=2
C. 8-6>3
D. 6-8=2
Answer:
The answer is C because 8-6=2 and 2 is equal to 2
Step-by-step explanation:
What does the • stand for n the problem. -4 • 6
Answer:
Multiplication
Step-by-step explanation:
simple form:
-4 x 6
-4 TIMES 6
therefore -4•6
Answer:
it stands for x or multiply
Step-by-step explanation:
(7-2i)(-2-4i)
show all work
Answer:
Step-by-step explanation:
-14 - 28i + 4i + 28i^2
-14 - 24i + 28(-1)
-14 - 24i - 28
-42 - 24i
Sarah wants to know if there is a difference in the time it takes her to run the high trestle trail from Madrid to Woodward based on the type of her running shoes her Hokas or her Asics.
what are the x- and y- intercepts for the graph of 3x + y = 15?
Answer:
X intercept=(5,0) and Y intercept=(0,15)
Step-by-step explanation:
3x + y = 15
to find the x int, sub in 0 for y and solve for x
3x + 0 = 15
3x = 15
x = 15/3
x = 5....so the x int is (5,0)
to find the y int, sub in 0 for x and solve for y
3(0) + y = 15
y = 15....so the y int is (0,15)
What is the area of the region in the first quadrant bounded on the left by the graph of x=y^2/2 and on the right by the graph of x=3y−4 for 2≤y≤4 ?
The area of the region is -2/3 square units
The area bounded by the regionSince the region is bounded on the left by x = y²/2 and on the right by x = 3y - 4 for 2 ≤ y ≤ 4, the area of the region is given by
[tex]A = \int\limits^4_2 {\frac{y^{2}}{2} } \, dy - \int\limits^4_2 {(3y - 4)} \, dy \\[/tex]
Integrating, we have
A = [y³/6]₂⁴ - [3y²/2 - 4y]₂⁴
A = [4³/6 - 2³/6] - [3(4)²/2 - 4(4) - {3(2)²/2 - 4(2)]}]
A = [64/6 - 8/6] - [3(16)/2 - 16 - {3(4)/2 - 8]}]
A = [64/6 - 8/6] - [3(16)/2 - 16 - {3(4)/2 - 8]}]
A = [64/6 - 8/6] - [3(8) - 16 - {3(2) - 8]}]
A = [(64 - 8)/6] - [3(8) - 16 - {3(2) - 8]}]
A = [56/6] - [24 - 16 - {6 - 8}]
A = [56/6] - [8 - {-2}]
A = [56/6] - [8 + 2]
A = [56/6] - [10]
A = 56/6 - 10
Taking the L.C.M, we have
A = (56 - 10 × 6)/6
A = (56 - 60)/6
A = -4/6
A = -2/3 square units
So, the area of the region is -2/3 square units
Find the graph in the attachment
Learn more about area bounded by region here:
https://brainly.com/question/14510627
For the function defined here, find
Answer:
f(0) = 2f(1) = 3f(2) = -2Step-by-step explanation:
The function value is the y-coordinate of the point having the given x-value.
f(0) = 2f(1) = 3f(2) = -2