Answer:
2--r
Step-by-step explanation:
A student decides to spin a dime and determine the proportion of times it lands on heads. The student spins the dime 25 times and records that it lands on heads 17 times. He decides to spin the dime again and spins it 100 times. Which of the following is a correct statement about the variability of the sampling distribution?
Since the sample size is increased, the variability will increase.
Since the sample size is increased, the variability will decrease.
Since the sample size is increased, the variability of the population will increase.
Since the sample size is increased, the variability of the population will decrease.
Answer:
Since the sample size is increased, the variability will decrease.
Step-by-step explanation:
took the quiz
Solve using law of sines, find the area of wxy.
Answer:
area = 828.27 cm²
Step-by-step explanation:
add a line from X, perpendicular to WY, call this point A.
angle Y = 180 - 33 - 121 = 26 degrees
sin 26 = XA/49
0.4384 = XA/49
XA = 21.48 which is the height of the triangle
cos 26 = YA/49
0.8988 = YA/49
YA = 44.04
tan 33 = 21.48/WA
0.6494 = 21.48/WA
WA = 33.08
YW = 77.12
(YW)(XA)(0.5) = area
(77.12)(21.48)(0.5) = area = 828.27 cm²
4 + 2(x - 2) = 2 (x - 1) + 2 = ?
The answer is: 0 = 0
True for all x
Pls help me with this one!! :)
Step-by-step explanation:
no picture just uploade again
Stuck on this problem help!
Answer:
C
Step-by-step explanation:
The area of cylinder is the area of the base (pi r^2) and the height (5)
Answer:
C
Step-by-step explanation:
Well if you think about it the normal formula is V=πr^2h
A cylinders base is a circle and the area for a circle is πr^2
If you cancel πr^2 you are left with height
So therefore it would be V=area of the base*height
What are the characteristics of the graph of the inequality x>-2
Answer:
your answer is option B
Step-by-step explanation:
hope it helps!!
have a nice day ^_^
Please really need help on this please
Answer:
y + 3= -7(x + 2)
Step-by-step explanation:
...........
4. Mass is measured using a
A. scale.
C. displacement.
B. glass.
D. graduated cylinder.
The point P(8,-3) lies on the curve with equation y=f(x). Find the image of P on the curve with equation y=f(x-4).
Answer:
(12, -3)
Step-by-step explanation:
Add 4 to x value because it is a horizontal translation right 4.
3. What three numbers are the Pythagorean triple generated by using 4 for x and 1 for y. Remember to use the formulas:
a = x2 - y2, 6 - 2xy, and C = x2 + y2
O 6, 8, and 10
O 5, 11, and 12
O 8, 15, and 17
O 3, 5, and 8
Given:
The three equations for the three numbers are
[tex]a=x^2-y^2[/tex]
[tex]b=2xy[/tex]
[tex]c=x^2+y^2[/tex]
To find:
The Pythagorean triple generated by using 4 for x and 1 for y.
Solution:
Substituting x=4 and and y=1 in the given equations, we get
[tex]a=4^2-1^2[/tex]
[tex]a=16-1[/tex]
[tex]a=15[/tex]
In the same way find b and c.
[tex]b=2(4)(1)[/tex]
[tex]b=8[/tex]
The third number is
[tex]c=4^2+1^2[/tex]
[tex]c=16+1[/tex]
[tex]c=17[/tex]
The required Pythagorean triple is 8, 15, and 17.
Therefore, the correct option is C.
sin(19/12 pi)=-(sqrtA(sqrtB +1))/4
Answer:
−0.965926=
−1 /4 /√a√b+ −1 4 /√a
Step-by-step explanation:
Find the area of the shaded region.
8
Area of shaded region = Area of circle - Area of Triangle
A=
square units
Note: Round to the tenth place.
9
Answer:
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HELP PLS
determine the measure of angles A and B
Answer:
Angle A is 52 degrees Angle B is 78 degrees
Step-by-step explanation:
The angles all have to add up to 180.
2x + 3x + 50 = 180
5x + 50 = 180
Subtract 50 from both sides
5x = 130
Divide each side by 5
x = 26
Solve
A) 2 * 26 = 52
B) 3 * 26 = 78
--------Check--------
52 + 78 +50 = 180
180 = 180
Choose the true statement for this system of
linear equations.
A)It has no solution.
B)It has one solution, (2,6).
C)It has one solution, (0,0).
D)It has an infinite number of solutions.
I think the answer is C :)
I've been working on a desmos project with a code of, swwwowuqkm, awhile but, I seem to be missing something. If you could please finish line 20, between lines 19 and 21, in a similar fashion to line 22, between lines 18 and 23. It would be much appreciated if you could also explain what I was missing.
HELP !!!!
Evaluate the expression for the given value of the variable
60/m; m = 5
Answer: 12
Step-by-step explanation:
Bags of sugar come in 3 sizes:
Small bag: A 250 g bag costs 95p.
Medium bag: A 500 g bag costs £1.80.
Large bag: A 3 kg bag costs £3.70.
Calculate the cost of 3 kg for the small and medium bags.
Give your answer in pounds to 2 dp.
Write the bag that is the better value in the comments
Answer:
Medium
Step-by-step explanation:
The computation is shown below:
The cost for the small and medium bag is shown below:
As we know that
1kg = 1000g
So 3kg = 3000g
Now for small bags
= 0.95 ÷ 250 × 3000
= £11.40
For medium bags
= £1.80 ÷ 500 × 3000
= £10.80
So here the medium bag would represent the better value
A team won 8 games and lost 5 games.
What’s the Fraction of the games lost?
Answer:
5/8 or 0.625 for wins
3/8 for lost
Look at the two rectangles on the centimetre square grid.
B
A
a)
Which rectangle (A or B) has the larger area? a
b) Explain how you know.
Answer:
A has the larger area.
Step-by-step explanation:
You can find a rectangle's are by multiplying its width by its height.
For triangle A the width is 5, and the height is 3. 5 × 3 = 15
For triangle B the width is 6 and the height is 2. 6 × 2 = 12
15 is greater than 12, so rectangle A has a larger area than rectangle B.
The area of rectangle [1] is greater than rectangle [2].
What is a rectangle?A rectangle is a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.
Given are two rectangles.
Assume that the side of the square block is 1 unit.
Now, for rectangle [1], we can write -
A [1] = L x B = 5 x 3 = 15 units square
For rectangle [2], we can write -
A [2] = L x B = 6 x 2 = 12 units square
Now, A[1] > A[2]
Therefore, the area of rectangle [1] is greater than rectangle [2].
To solve more questions on 2 - D figures, visit the link below-
brainly.com/question/16739227
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We want to factor the following expression:
x4+ 3x2y+9y2
Which pattern can we use to factor the expression?
U and V are either constant integers or single-variable expressions.
Answer:
Answer is A
Step-by-step explanation:
Thats all And do i need to explain ?
The figure below shows a shed in the shape of a rectangular prism.
Note that the shed has a floor.
Answer:
Step-by-step explanation:
a). Volume of a rectangular prism = Length × width × height
= 13 × 8 × 12
= 1248 cubic ft
Surface area of a rectangular prism = (lb + bh + hl)
Here, l = length, b = width and h = height of the rectangular prism
Surface area of the given prism = (13×8 + 8×12 + 12×13)
= 356 square ft
b). If the shed is made of metal,
Metal needed to make the shed = Volume
c). The shed is used for the storage.
Measure would be used → Surface area
How many distinct positive integer-valued solutions exist to the equation (x2 - 7x + 11)(x2 - 13x + 42) = 1
Answer:
The given equation has TWO positive integer valued solutions, {6, 7}
Step-by-step explanation:
Here we are given two trinomial factors, each of which needs to be set equal to zero and in each case the resulting quadratic equation solved.
(x^2 - 7x + 11) has the coefficients {1, -7, 11}, and so the discriminant of this quadratic is b^2 - 4(a)(c), or 49 - 4(11), or 5.
Because this discriminant is positive, we know immediately that this quadratic has two real, unequal roots involving √5 (NO integer roots).
Next we focus on (x^2 - 13x + 42). The discriminant is b^2 - 4(a)(c), or
169 - 168, or 1. Again we see that there are two real, unequal roots:
+13 ± √1 +13 ± 1
x = --------------- or x = -------------
2 2
OR x = 14/2 = 7 (integer) or x = 12/2 = 6 (integer).
The given equation has TWO positive integer valued solutions, {6, 7}
Juan and his family fly from London to Rio de Janeiro.
The plane departs at 10 20 and arrives in Rio de Janeiro 11 hours 40 minutes later.
The local time in Rio de Janeiro is 5 hours behind the local time in London.
Work out the time in Rio de Janeiro when the plane arrives.
Answer:
The time in Rio de Janeiro when the plane arrives is 17:00.
Step-by-step explanation:
Since Juan and his family fly from London to Rio de Janeiro, the plane departs at 10:20 and arrives in Rio de Janeiro 11 hours 40 minutes later, and the local time in Rio de Janeiro is 5 hours behind the local time in London To work out the time in Rio de Janeiro when the plane arrives, the following calculation must be performed:
(10:20 + 11:40) - 05:00 = X
22:00 - 05: 00 = X
17:00 = X
Thus, the time in Rio de Janeiro when the plane arrives is 17:00.
Find the value of X. WILL GIVE BRAINLIEST
Answer:
X = 12
Step-by-step explanation:
the total degree of any triangle is 180.
therefore I took (7x + 4) + (5x + 3) + ( 2x + 5) = 180
I replace the Xs with 12 and then the answer is 180
(7(12) + 4) + (5(12) + 3) + ( 2(12) + 5) = 180
Write a word problem that could be solved using the division equation
16 divided by 2 =8
Answer:
Step-by-step explanation:
A word problem that represents division equation '16 divided by 2 =8' is Dayana and his friend John bought a 12lb bag of candy at the grocery store. If they want to share it equally, how much candy will each person get?
What is division?The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.
We have expression:
16 divided by 2 =8
In numerator form,
16 ÷ 2 = 8
Dayana and his friend John bought a 12lb bag of candy at the grocery store.
If they want to share it equally, how much candy will each person get?
16 ÷ 2
16 / 2 = 8
16 divided by 2 =8
The quotient is 8.
It means that each person will get 8lb of candy.
Therefore, the problem is, Dayana and his friend John bought a 12lb bag of candy at the grocery store. If they want to share it equally, how much candy will each person get?
To learn more about the division;
https://brainly.com/question/13263114
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Tell which set or sets the number below belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, or real numbers. 0
Answer:
if what you're asking if 0 belongs to anyone of the sets then zero belongs to whole numbers.
whole numbers is 0,1,2,3,4 etc
Natural numbers are 1,2,3,4 etc
integers are -3,-2,-1,0,1,2,3 etc
rational numbers are like fractions etc
irrational numbers are when you don't necessarily get a exact or whole numbers for example like π/pie
Help please! Thank you! :D❤️
Please help! Picture Down Below
Answer:
B
Step-by-step explanation:
Corrosponding angle is exacltly
that
Answer:
c.same side interior angles theorem
ABC and XYZ are similar. Find the missing side length.
(The triangle are not drawn to scale)
Answer and I will give you brainiliest
Answer:
7
Step-by-step explanation:
In the first triangle, the length of the sides are 32(4*8), 56(8*7) & 40(5*8)
so in the second figure, the lengths are 4, 7, 5
IHKGHUSOHUOSLSO ANSWER
I REALIZED I DID IT WRONG SO UH IGNORE WHAT I SAID IM SORRY D:
Area of the triangle is 1/2 base x height
1/2(6)x(7)
21m^2
Area of the rectangle is l x b
6 x 10
60m^2
Total area = area of triangle + area of reactangle
Total area = 21m^2 + 60m^2
Therefore total area is 81m^2