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Related Questions
Marissa says that lines a and d will eventually intersect. is she correct? explain. yes, because they are on the same plane yes, because they are perpendicular no, because they are parallel no, because they are skew
Answers
Marissa says that lines a and d will eventually intersect is a wrong statement as they are skew lines. Therefore option D is correct.
What are skew lines?A and D are both in different planes, skew lines are line that will never intersect because they are noncoplanar, meaning they are never in the same plane. If they aren't in the same plane, they can't intersect.
Two or more lines that doesn't have any intersections but they are not parallel.
Skew lines are also called as agonic lines. Since two lines in a plane must be parallel or intersect ,skew lines can only exist in three dimensions or more dimensions.
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Make a mapping diagram for the relation.
{(-3, 4), (1, 1), (3, -6), (4, -1)}
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Check the picture below.
given cosine of x is equal to negative square root of 3 over 2 comma what is the value of cos(x π)?
Answers
Value of cos(x+π) = [tex]\bold{\frac{\sqrt{3} }{2}}[/tex]
Given cosine of x = [tex]-\frac{\sqrt{3} }{2}[/tex]
i.e., cos(x) = [tex]-\frac{\sqrt{3} }{2}[/tex]
Also cos([tex]\frac{\pi}{6}[/tex]) = [tex]\frac{\sqrt{3} }{2}[/tex]. So x = [tex]\frac{\pi}{6}[/tex].
We need to find cos(x+π) = cos([tex]\frac{7\pi}{6}[/tex]).
But its value is not easy to find. So we use trigonometric formulas.
We have the trigonometric formula, cos (x+π) = - cos(x) = - [tex]-\frac{\sqrt{3} }{2}[/tex] = [tex]\bold{\frac{\sqrt{3} }{2}}[/tex]
Cos(x+π) lies in the 3rd quadrant. So there cosine has negative values. That is why, cos (x+π) = - cos(x).
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10. janet and david are playing with a pair of dice. if janet rolls two numbers whose sum is less than 6, david wins and gets to roll next. however, if janet rolls two numbers whose sum is 6 or greater, she gets to keep rolling. is this a fair method for their game? this is a fair method. this is not a fair method. not enough information.
Answers
Considering the probabilities of each outcome, it is much more likely that Janet wins than David, hence this is not a fair method.
What is a probability?A probability is given by the number of desired outcomes divided by the number of total outcomes.
The 36 total outcomes for the roll of two dice are given as follows:
(1,1), (1,2), (1,3), (1,4), (1,5), (1,6).(2,1), (2,2), (2,3), (2,4), (2,5), (2,6).(3,1), (3,2), (3,3), (3,4), (3,5), (3,6).(4,1), (4,2), (4,3), (4,4), (4,5), (4,6).(5,1), (5,2), (5,3), (5,4), (5,5), (5,6).(6,1), (6,2), (6,3), (6,4), (6,5), (6,6).The number of outcomes in which the sum is less than 6 is:
10.
Hence the probability that David wins is:
p = 10/36.
Janet winning is complementary to David, hence the probability she wins is:
p = 26/36.
From the probabilities, it is much more likely that Janet wins than David, hence this is not a fair method.
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. A drawing of a tree and a wall are in the image below.
24 fl
What is the height of the tree?
A. 1 foot
C. 36 feet
B. 16 feet
D. 22 feet
Answers
Height of the tree is 16ft
There is a tree and a wall.
height of the wall = 4ft
Base of the wall = 6ft
tanθ for wall = height of the wall/Base of the wall
= 4/6
= 2/3
Height of the tree be h
base of the tree = 24ft
tanθ for tree= h/24
tanθ for wall = tanθ for tree
2/3 = h/24
h=(2/3)(24)
= 16ft
Height of the tree is 16ft.
Height, altitude, and elevation all refer to the vertical distance between something's top and bottom or between a base and something above it. Height is something measured vertically, whether it is high or low.
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What is the (square root of A)*(cube root of A)
Answers
Step-by-step explanation:
[tex] = \sqrt{a} \times \sqrt[3]{a} \\ = {a}^{ \frac{1}{2} } \times {a}^{ \frac{1}{3} } \\ = {a}^{ \frac{1}{3} + \frac{1}{2} } \\ = {a}^{ \frac{5}{6} } [/tex]
I CONVERTED THE TERMS TO BE IN A POWER FORM TO SOLVE THIS EASILY
AND USED THE LAW OF EXPONENT..MULTIPLYING POWERS OF THE SAME BASE WE KEEP ONE BASE AND ADD THE EXPONENTS.
What is the value of the following expression?: 6+32-5-7
O a. 44
O b. -12
C. 398
O d. 68
Answers
Answer:
44
Step-by-step explanation:
Aiyana draws figures JKLM and PQRS on the grid.
PART A Aiyana dilates figure JKLM to form image JK'L'M'. She uses a scale
factor of 1 and point J as the center of dilation. How are the original figure and
its image related?
(I also need help placing JK’L’M’
Answers
The relationship between the figure JKLM and it's image, J'K'L'M' following a dilation by a scale factor of 1 is that JKLM and J'K'L'M' have the same dimensions, and location
J'K'L'M' should be placed at the same lol as JKLMWhat are scale factors?Scale factors are numbers that are used to multiply a quantity to scale it by a given rate.
Part A
In order to easily describe the relationship between the image J'K'L'M' and the original figure JKLM, the point J can be taken as the origin such that the image vertices are obtained by dilating the points on the original figure in their original direction relative to J using the specified scale factor.
The coordinates of the vertices of JKLM relative to J are;
J(0, 0), K(6, 0), L(6, -6), M(0, -6)
Distance of K from J = 6 - 0 = 6 units to the right of K
Therefore, using a scale factor of 1;
Distance of K' from J = 1 × 6 units = 6 units to the rightThe distances of the vertices of square J'K'L'M' from point J are the same and in the same direction as the distances of the vertices of square JKLM from point J.
JKLM and J'K'L'M' have the same dimensions following the dilation of JKLM by a scale factor of 1The vertices of J'K'L'M' using a scale factor of 1 are therefore located at the same coordinates as the vertices of square JKLM
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how's ur day going? Also any tips on geometry?
Answers
how many area codes (abc) would be possible if all three digits could be any value 1-9? question 5 options: 27 30 729 1,000
Answers
Answer:729
Step-by-step explanation:someone else said it
If 6x/7 = 10y/9 then what dose x/y =
Answers
Answer:
x = 35y/27
y = 27x/35
Check out the attached photo
question add 113 (−56) using the number line. select the location on the number line to plot the sum.
Answers
The addition of 113 and -56 using the number line gives the answer as 57.
the two numbers to be introduced are 113 and -56.A fine variety indicates we have to move within the proper course at the range line. A negative variety suggests we have to pass within the left course at the wide variety line. We continually begin from the neutral cost, i.e., zero.We circulate 113 unit steps closer to the right of zero and mark that point.We now need to move fifty six unit steps towards the left of the ultimate marked factor, i.e., from 113 to mark it as our final result of addition.in this way, we can upload any two numbers the usage of the variety line.To learn more about the number line, visit :
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<7 is a supplement of <8, and m<7 =109 . find m<8
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permutation p-values should never be zero: calculating exact p-values when permutations are randomly drawn
Answers
Permutation P-values should never be zero: calculating exact P-values when permutations are randomly drawn
This is a research paper whose authors are Belinda Phipson , Gordon K Smyth,
Abstract:
Permutation tests are among the most extensively used statistical procedures in current genomic research, and they include randomly permuting the sample or gene labels to assign p-values to test statistics. However, permutation p-values reported in the genomic literature are frequently estimated improperly, understating the number of permutations by roughly 1/m. When Monte Carlo simulation is used to assign p-values, the same thing frequently happens. Although the p-value understatement is generally small in absolute terms, the repercussions in a multiple testing situation might be severe.The underestimation stems from the intuitive but incorrect notion of using permutation to estimate the tail probability of the test statistic. Instead, we propose that permutation should be understood as yielding an exact discrete null distribution. The relevant literature, some of which is likely to have been relatively unavailable to the genetic community, is reviewed and summarised.Conclusions:
When permutations are selected at random, a computing approach is established for accurate p-values. The approach works for any number of permutations and samples. Some basic guidelines are offered for the practical application of permutation testing.To learn more about statistics, visit :
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Is the mixed number 1 1/6 rational or irrational?
Answers
Answer:
rational
Step-by-step explanation:
1 1/6 can also be expressed in the form 7/6
any number that can be expressed in a form of a/b is a rational number
Gina Wilson Unit 7 Homework 2 . answers for all please
Answers
1) 72 + 18 =90. Therefore the angles are complementary angles
2) Angles one and two are a pair of opposite angles made by two intersecting lines. Those are called vertical angles.
3) Those two are right angles, and two right angles add up to 180. So they are right angles and supplementary angles.
4) Adjacent angles
5) Vertical angles and supplementary (because both are right angles)
6) Right angles, supplementary, linear, adjacent angles.
7) Complementary and adjacent angles.
8) Angle of a straight line is 180. So 180-21 should equal x. x=159
9) As stated in number 2, vertical angles are congruent. x=129
10) 38 and x are complementary angles. (it shows a box on the angle formed by both of them, which means it is a right angle.) 90-38 = 52
11) Vertical angle rule. y = 93. The sum of 93, y, x, and z is 360, because the degree of a full circle is 360 degrees. so, 360-93-93 is 174. However, because of the vertical angle rule we will know that x=z. so 174/2 is 87.
x=87 and z=87
12) If you read the question, it states m∠PQR is 147, and ∠PQR is consisted of 119 and x. So, 147-119 is x. x=28
13) W and 34 are linear angles. Linear angles add up to 180 degrees. So, 180-34. w=146. Angle x is labeled with a box at the vertex of the angle. That indicates it is a right angle. x=90. The angle formed with 34 and z is labeled with a box at the vertex, indicating 34+z is 90. Therefore, 90-34=z. z=56. Finally, because angle x is linear with angle (y+z), we will know that y+z is equal to 90. Therefore, y+z=90, y+56=90, y=90-56, y=34
14) We are given that m∠AEC is 41. ∠AEC and ∠AED are linear angles. So, m∠AED = 180-41. m∠AEC=139
15) ∠DEF is a right angle, indicated by the box label at the vertex. ∠DEF and ∠CEF are linear angles, therefore m∠CEF = 180-90. m∠CEF=90
16) ∠DEB and ∠AEC are vertical angles. Therefore m∠AEC and m∠DEB are equal. ∠DEB=41
17) ∠DEB and ∠BEF form a right angle together. In question 16 we confirmed that m∠DEB is 41. Therefore m∠BEF is equal to 90-41.
m∠BEF=49
18) In question 15 we confirmed that m∠CEF is 90, and in question 17 we confirmed that m∠BEF is 49. So m∠CEB must be 90+49. m∠CEB=139
19) In question 15 we confirmed that m∠CEF is 90, and the direction states m∠AEC is 41. Therefore m∠AEF is 90+41. m∠AEF=131
20) Vertical angles are congruent. Therefore ∠PQR is the same degree measure as ∠SQT. m∠PQR=109
21) Complementary angles add up to 90. Therefore ∠2+∠3 = 90. And it is given that ∠2=24. Therefore ∠3 = 90-24. ∠3=66
22) Supplementary angles add up to 180. Therefore ∠K+∠L= 180. And it is given that ∠K=56. Therefore ∠L = 180-56. ∠L=124
Look at the simultaneous equations below.
(1)
x - 2y = 15
(2) x = 3 = 4y
a) Rearrange equation (2) to make x the
subject.
b) Using your answer to part a), solve the
simultaneous equations using substitution.
Answers
Answer:
x_2y=15
x_4y=_3
_6y=12
divide both sides by 6
y=_2
substitute y for x
In equation 1
x_2y=15
x_2 (_2)=15
x+4=15
x=15_4
x=11
a have a box of d chocolates. i eat 7 of them. how many chocolates are left?
Answers
Answer:
d-7 would be the equation. If you don't know what D is, use the variable "D"
Jason uses 3 1/2 cups of uncooked pasta to make a pot of macaroni and cheese. if he has 18 1/2 cups of pasta, how many pots of macaroni and cheese can jason make?
Answers
He can make 5 pots of macaroni and cheese.
What is Unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given:
Jason uses 3 1/2 cups of uncooked pasta.
He has= 18 1/2 cup of pasta
So, the numbers pots he can make
=18 1/2 ÷ 3 1/2
=37/2 ÷ 7/2
=37/2*2/7
=37/7
=5.28
= 5 pots
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Insert three arithmetic means between
22
and
34
.
Answers
Answer:
22,25,28,31
N=5
A1= 22
an= 35
22-34
d= 5-1
22+3=25
25+3=28
28+3=31
31+3=34
mwheheheheh
Julie is making a punch for her birthday party. First, she pours a 2-liter bottle of ginger ale into her punch bowl. Then, she adds two 750-milliliter bottles of grape juice. How many liters of punch does Julie make in all?
Answers
Julie will make 3.5 litres of punch
How to calculate the amount of litres ?Julie is making a punch for her birthday
She first pours 2 litres if ginger ale
She then adds 750 millilitres of grape juice
Convert 750 millilitres to litres
750/1000
= 0.75 × 2
= 1.5
Total number of litres= 1.5 + 2
= 3.5 litres
Hence Julie makes 3.5 litres of punch
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HELP, find the domain.
Answers
the domain of the graphed function is D: [-5, 3]
How to identify the domain of the function?
For a function f(x), we define the domain as the set of the inputs of the function.
So, to identify the domain, we need to look a the horizontal axis.
Doing that, we can see that the first value in the horizontal axis is x = -5, and the last value is x = 3.
Notice that in both cases we have solid dots, which means that these values do belong to the domain.
Then the domain of the graphed function is D: [-5, 3]
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38) "the quotient of a number and 2, increased
by 9 is -15"
Answers
Answer: x=48
i know the answer bc i just did it
Joel is training for a marathon. He records the number of miles that he ran each day for a week. In two weeks he plans on increasing the distance he runs on Monday and Tuesday by 1 mile, and the amount he runs on Friday, Saturday and Sunday by 2 miles. How will this affect the MEAN number of miles he runs in a week?
Answers
The mean will increase by 1.6 miles.
How to calculate the mean?It should be noted that from the information, in two weeks he plans on increasing the distance he runs on Monday and Tuesday by 1 mile, and the amount he runs on Friday, Saturday and Sunday by 2 miles.
The mean will be:
= (1 × 2) + (2 ×3) / 5
= (2 + 6)/5
= 8/5
= 1.6
The mean will increase by 1.6 miles.
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suppose that a water fountain produces a stream of water that follows the shape of a parabola. assigning the origin of a coordinate system to the point where the water stream emerges from the fountain, a measurement shows that the maximum height of the stream occurs at the point (6, 5). use symmetry to identify a third point and find a quadratic regression equation for the stream of water.a.y
Answers
Quadratic equation for stream of water; (x-6)² = -36/5(y-5)
Using symmetry;
if (0,0) is taken as origin and maximum height is reached by stream at (6,5); the stream will strike the ground at (12,0);
Equation of a parabola whose mouth is open toward negative y- axis;
x² = -4ay
Parabola vertex shifted from (0,0) to (6,5);
(x-6)² = -4a(y-5);
Put x = 0, y = 0, as it lies on parabola;
36 = -4a(-5);
36 = 20a;
a = 36/20;
Quadratic equation for stream of water; (x-6)² = -36/5(y-5);
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83. Which statement must be true if x is a whole number greater than 1?
Answers
You can substitute x with 2, since this follows the rule. With this in mind, it could be, 1/3>1/4.
For g (x)=x^2 + 6 find g(2)
Answers
Answer:
plug in the 2 for x so its 2^2+6 2^2 is 4 plus 6 is 10
Step-by-step explanation:
Which set of numerical values represents the lower quartile, the median, and the upper quartile, in that order, of the box plot of this data set? 11, 12, 12, 13, 14, 15, 16, 18, 19, 19, 20
Answers
For the given data set the lower quartile is 12 , the median is 15 and the upper quartile is 19 .
In the question ,
the data det is given as {11, 12, 12, 13, 14, 15, 16, 18, 19, 19, 20}
the median is the central value , that is 15.
For lower and upper quartile ,
the set is divided into two halves ,
the lower half is {11,12,12,13,14}
the median of the lower half (lower quartile) = 12
the upper half is {16,18,19,19,20}
the median of the upper half(upper quartile) = 19.
Therefore , for the given data set {11, 12, 12, 13, 14, 15, 16, 18, 19, 19, 20}, the lower quartile is 12 , the median is 15 and the upper quartile is 19 .
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Simplify 4(11 - 6) + 2
Answers
Step-by-step explanation:
Distribution first y=44-24+2
Simplify y=22
Hope this helps!
If you have any other questions feel free to ask!
Answer:
22
Step-by-step explanation:
Hey there!
To solve this, you need to follow PEMDAS
We do Parenthesis first:
44 - 24 + 2
Now we can simplify:
20 + 2
22
3(k + 5) = -2(3k - 6)
Answers
Answer:
k = -1/3
Step-by-step explanation:
1. Simplify by distributing
3k + 15 = -6k + 12
Move -6 onto the left side by adding 6k onto both sides =
9k + 15 = 12
Now subtract 15 on both sides=
9k = -3
Now divide both sides by 9=
k = -1/3
Answer:
k=-1/3
Step-by-step explanation:
3k+15=-6k+12
15-12=-6k-3k
3=-9k
k=-1/3