Choosing different pairs of points we got different slopes, then we conclude that the 3 points don't lie on the same line.
Do the points lie on the same line?Remember that if a line contains two points (x₁, y₁) and (x₂, y₂), then the slope of the line is:
a = (y₂ - y₁)/(x₂ - x₁)
Here the 3 points are on the same line if we get the same slope for any pair that we choose.
If we use the first two; (15, -12) and (28, 14), the slope is:
a = (14 - (-12))(28 - 15) = 8.67
If we use the second and third point (28, 14) and (32, 21), we get:
a = (21 - 14)/(32 - 28) = 6.125
We got different slopes, then we conclude that the 3 points don't lie on the same line.
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help with this question please! show word needed!
Answer: u = 80° v = 25°
Step-by-step explanation:
(a) angles on a straight line = 180° - 130° = 50°
In isosceles triangle, both angles on each side is equal, so
180° - 50° - 50° = 80°
u = 80°
(b) u = (2v + 30°) because opposite angles of a parallelogram are equal.
u = 80°
80° = 2v + 30°
80 - 30 = 50
50° = 2v
25° = v
If the smaller of two numbers is one-half of the larger number and the sum of the two numbers is 75
Step-by-step explanation:
let the larger number=n
then the smaller number=½n
We conclude from the question that
n+½n=75
3/2n=75
3n=150
n=150/3=50
Therefore the larger number=50 and the smaller number=½×50=25
The students at Woodward elementary voted for a school mascot. The falcon won the race 5/8 of the votes and the eagle came seconds with 1/3 of the remaining votes. Is 536 students voted for a mascot, how many students voted for the eagle
It is found that total 67 students voted for eagle.
Two ratios are set to be equal in an equation called a proportion.
Given students at Woodward elementary voted for a school mascot.
Falcon received 5/8 of the vote, winning the post.
Eagle turned up second with 1/3 of the remaining votes.
Total number of students voted for a mascot = 536
The total amount of votes falcon received = 5/8 × 536
= 67 × 5
= 335 votes
Subtract the votes received by falcon from the total number of votes.
= 536 ₋ 335
= 201
Now the remaining votes are 201, from the remaining votes eagle received 1/3 of it.
votes gained by eagle = 1/3 × 201
= 67
Therefore 67 students voted for the eagle.
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Find the first four multiples of 15.
Answer:
15, 30, 45, 60
Step-by-step explanation:
ALL OF THE MULTIPLES OF 15
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375, 390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, 735
All numbers can be divided or the product of 15 is a multiple of 15.
are 8x and 2x^3 like terms ??
Answer:
No they are not 'like' terms
Step-by-step explanation:
8x and 2x WOULD be 'like' terms
8x and 2x^2 are not
8x and 2x^3 are not either
How many distinguishable permutations can be formed from the letters in the word sassafras
In the word "SASSAFRAS", there 2520 permutations can be formed.
Permutation :A permutation is a mathematical technique that determines the number of possible arrangements in a set when the order of the arrangements matters.
The order of arrangement in permutation is in linear form.
In the given word is “SASSAFRAS”. There are total 9 letters in which some letters appears several times, that is
S = 4 times.
A = 3 times.
F = 1 times.
R = 1 times.
We can the number of permutation to arrange this letter with the help of :
nPr = n! / (n - r)!
nPr = Permutation
n = Total number of objects
r = Number of objects selected
'!' = Factorial
Factorial :
Factorial (noted as “!”) is the product of all positive integers less than or equal to the number preceding the factorial sign. For example, 3! = 1 x 2 x 3 = 6.
So, nPr = 9!/(4!) (3!) (1!) (1!)
= (9×8×7×6×5×4×3×2×1)/(4×3×2×1)×(3×2×1)×(1)×(1)
= 3,62,880/ 24×6×1×1
= 3,62,880/144
= 2,520
Hence, 2520 permutations can be formed from the word 'SASSAFRAS'.
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I am a two-dimensional shape.
I have two pairs of parallel sides.
I have no axis of symmetry.
What am I?
Answer: Non-rectangular Parallelogram
The opposite sides are parallel, but the figure is not a rectangle. It's also not a square either since those figures have an axis of symmetry.
Triple a number decreased by 25 is equivalent to five less than half the same number.
The number is??
The unknown number is 8.
Let the unknown number be x.
According to the given question.
We have a phrase "Triple a number decreased by 25 is equivalent to five less than half the same number".
Therefore, the equation for the phrase "Triple a number decreased by 25 is equivalent to five less than half the same number" is given by
3x - 25 = x/2 - 5
To find the unknown number we have to solve the above equation for x.
Therefore,
3x - 25 = x - 10/2
⇒ 6x - 50 = x - 10
⇒ 6x - x = -10 + 50
⇒ 5x = 40
⇒ x = 40/5
⇒ x = 8
Hence, the unknown number is 8.
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How would you write .8% as a decimal? Remember DP!
Answer:
0.08
Step-by-step explanation:
0.8% as a decimal is 0.08.
Hope this helps!
Please mark as brainliest if correct!
Answer:
.8% = 0.08
Imagine the hundredths place(2 DP) as the ones place, and the tenths place as the tens place like in 57%, that would be 0.57 because it's double digit.
Hope this helps.
pls help. stuck on problem
Answer: x = 7 ft, DO = 25 ft, OG = 35 ft
Step-by-step explanation:
We will write an equation using the segment addition postulate.
Given by segment addition postulate:
DO + OG = DG
Substitute known values:
(4x - 3) ft + (2x + 21) ft = 60 ft
Combine like terms and simplify:
6x + 18 ft = 60 ft
Subtract 18 ft from both sides of the equation:
6x = 42 ft
Divide both sides of the equation by 6:
x = 7 ft
Now, we will "plug" this value in and solve for the segments.
DO ➜ (4x - 3)ft ➜ (4(7) - 3) ft ➜ 28 - 3ft = 25 ft
OG ➜ (2x + 21) ➜ (2(7) + 21) ft ➜ 14 + 21 = 35 ft
is the value of the 1 in 1,440,000 10 times as great as the value of 4 in the hundred thousands place explain
Answer:
Yes because first ( right to left) 4 is 400,000 while the other 4 is 40,000
Step-by-step explanation:
40,000x 10= 400,000
thanks
the cost C (in dollars) of making n watches is represented by C=15n+85. how many watches are made when the cost is $385
There are 38 pencils in the drawer. Sam took 24
pencils from the drawer. How many pencils are now in the drawer ?
Answer: 14
Step-by-step explanation:
[tex]\frac{4}{5} x^{4}[/tex]
Use the given equation to determine if the points in the brackets are on the graph
of the line determine by the equation 4x- 3y=-6
{(0,2),(1,3),(4,7),(6,10)}
The points in the brackets are on the graph are (0, 2) and (6, 10)
How to determine if the points in the brackets are on the graph?The equation of the line is given as
4x - 3y = -6
The points are given as:
{(0,2),(1,3),(4,7),(6,10)}
Rewrite as
(x, y) = {(0,2),(1,3),(4,7),(6,10)}
Next, we substitute the x and y values in the equation 4x - 3y = -6
So, we have
(0, 2):
4(0) - 3(2) = -6
-6 = -6 ---- true
(1, 3):
4(1) - 3(3) = -6
-5 = -6 ---- false
(4, 7):
4(4) - 3(7) = -6
-5 = -6 ---- false
(6, 10):
4(6) - 3(10) = -6
-6 = -6 ---- true
Hence, the points in the brackets are on the graph are (0, 2) and (6, 10)
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Jill sold half of her comic books
and then bought seventeen
more. She now has 31. With how
many did she begin?
well, she really began with "x" total.
then she sold half of that, so hmmm 1/2 of "x" is just x/2 and she's left with half, so she sold x/2 and she was left only with x/2, and then she bought 17 more, we also know that she has 31 now, so
[tex]\stackrel{\textit{leftover}}{\cfrac{1}{2}x}~~ + ~~\stackrel{\textit{more bought}}{17}~~ = ~~\stackrel{\textit{now she has}}{31}\implies \\\\\\ \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{2}}{2\left(\cfrac{x}{2}~~ + ~~17 \right)~~ = ~~2(31)}\implies x+34=62\implies \LARGE \begin{array}{llll} x=28 \end{array}[/tex]
PLEASE HELP! Need help quick!
Joaquin started an online music collection with 105 songs. Each week, Joaquin purchases 4 new songs to add to his collection.
Which inequality can be used to find w, the number of weeks after starting his collection, when Joaquin will have more than 200 songs in his collection?
A- 105w+4<200
B- 105w+4>200
C- 4w+105<200
D- 4w+105>200
Answer: The answer will be D
Step-by-step explanation: I think the answer will be C because you can multiply this as I did to get the answer so its C
HELP PLEASE! Use the diagram below to analyze another student's work.
S
80°
45°
Nathan stated that angle q is 20 degrees because 80 degrees + 20 degrees = 100
degrees. Straight lines are measured as 100 degrees.
Did Nathan correctly calculate the measurement for angle q? Justify your answer
1pt for identifying if Nothan was
correct or not
2pts for justification
Answer: No, Nathan didn't measure angle correctly
Step-by-step explanation:
The sum of angles that are formed on a straight line is equal to 180°
So the value angle q is 80° because the sum of angle q and 100° is 180°
∠q+100°=180°∠q= 180°-100°
∠q= 80°
No, Nathan didn't measure angle correctly.
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HELP ME PLEASE SUPER EASY
6.8x10^6, 6.6x10^6, 6.1x10^6, 6x10^
Answer:
6 x 10^6, 6.1 x 10^6, 6.6 x 10^6, 6.8 x 10^6
Step-by-step explanation:
Which is a factor of 6z^2 -3z-2+4z?
A:2z+1
B:3z-2
C:z+2
D:2z-1
Answer:
D. (2z-1)
Step-by-step explanation:
If you solve 6x^2-3z-2+4z you should get (2z-1)(3z+2). Which automatically gives you a factor of 2z-1.
what is the diameter of a 5.23 cubic yard ball
Answer:
It is the size of a cube that is 1 yard on a side. It is about 202 gallons or about 765 liters. A cubic foot is a unit of volume. It is the size of a cube that is 1 foot on a side. It is about 7.5 gallons or about 28.3 liters. Cubic Yards to Cubic Feet Conversions (some results rounded)
Step-by-step explanation:
Let A be the points (a,2a-1)and B be point (2a+4,3a+9) where "a" is a constant , given that the distance AB is √(260) .find the possible values of "a".note a is an integer .
Given that the distance AB is (260), let A be the points (a,2a-1) and B be the places (2a+4,3a+9) where "a" is a constant.
discover the several meanings of "a." noting that an is an integer An integer, pronounced "IN-tuh-jer," is a whole number that can be positive, negative, or zero and is not a fraction. Integer examples include: -5, 1, 5, 8, 97, and 3,043. The following numbers are examples of non-integer numbers: -1.43, 1 3/4, 3.14,.09, and 5,643.1.
Fractions in Math, represent a numerical value that expresses a part of a whole. The whole can be any number, a specific value, or a thing. Fractions are represented in the form of p/q. For example, ¼, ½, ¾, and so on.
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1. Two adjacent angles
2. Two acute vertical angles
3. Two obtuse vertical angles
Answer: D e acute
Step-by-step explanation:
I will give brainliest if you explain
Answer:
See below
Step-by-step explanation:
The first one scales UP from 4 to 6 F'G'/FG = factor is 6/4 = 1.5
second one scales DOWN from 4 to 3
F'G' / FG = scale factor is 3/4
Third one is scaled DOWN
F'G' / FG = 2/4 = 1/2
Note when scale is DOWN the factor is less than one
when scale is UP , factor is more than one
Find the distance between the two points in simplest radical form
(-4,-1) and (1,-9)
The difference between the two points ; (-3,10 )
given
(-4,-1) and (1,-9)
here we have to find the difference between -4 and -1
which is -3 so u go -3 spaces left so it would be -3
then , find the difference between 1 and -9 which is 10 so u go 10 spaces down so the difference between is;
(-3,10).
therefore the distance between two point are (-3,10)
Distance between two points is the length of the line segment that connects the two given points. Distance between two points in coordinate geometry can be calculated by finding the length of the line segment joining the given coordinates.to know more about distance.
We will use the distance formula in order to find the distance between points a and b. By substituting the points A(3, 4) and B(1, 2) in the above formula we get our required distance d. Hence, distance d = 2√2 units
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Thomas records the masses of several rocks as 7.40 g, 7.85 g, 7.60 g, and 7.40 g. what is the mode of thomas’s data set? 0.45 7.40 7.55 7.60
By observation or by inspection, 7.40 appears the most, thus mode.
What Is the Mode?The value that appears most frequently in a data set is called the mode. One mode, several modes, or none at all may be present in a set of data. The mean, or average of a set, and the median, or middle value in a set, are two more common measurements of central tendency.
Data can be disseminated in statistics in a number of different ways. The traditional normal (bell-curve) distribution is the one that is referenced the most. The midpoint of this distribution, as well as some others, coincides with the peak frequency of observed values and is where the mean (average) value is located.
The mean, median, and mode all have the same values for such a distribution. This indicates that this value—the one that appears the most frequently in the data—is the average value, the middle value, and the mode.
When analyzing categorical data, such as automobile models or soda taste varieties, where a mathematical average median value based on ordering cannot be computed, mode is most helpful as a gauge of central tendency.
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Given m|n, find the value of x.
Find an equation of the sphere that passes through point (1,8,1) and has center (3,5,-1)
The sphere's equation that passes through the given point is:
(x - 3)² + (y - 8)² + (z - 1)² = 30What is the standard equation of a sphere?A sphere's standard equation is defined by its center and radius. Remember that the radius is the distance between any two points on the sphere. The standard formula is: [tex]\left(x-x_c\right)^2+\left(y-y_c\right)^2+\left(z-z_c\right)^2=r^2[/tex]To find the equation of the sphere:
The radius of a sphere is equally distant between any two points on the sphere. The sphere's center is: (3, 8, 1)So,
P = (4, 3,−1)C = (3, 8, 1)r = d(C, p)Now,
[tex]\begin{aligned}&=\sqrt{\left(x_c-x_p\right)^2+\left(y_c-y_p\right)^2+\left(z_c-z_p\right)^2} \\&=\sqrt{(3-4)^2+(8-3)^2+(1-(-1))^2} \\&=\sqrt{(-1)^2+(5)^2+(2)^2} \\&=\sqrt{1+25+4} \\\therefore r &=\sqrt{30}\end{aligned}[/tex]
Supplement the center point and radius into the standard sphere equation:
[tex]\left(x-x_c\right)^2+\left(y-y_c\right)^2+\left(z-z_c\right)^2=r^2\\(x-3)^2+(y-8)^2+(z-1)^2=(\sqrt{30})^2\\(x-3)^2+(y-8)^2+(z-1)^2=30[/tex]
Therefore, the sphere's equation that passes through the given point is:
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The correct question is given below;
Find an equation of the sphere that passes through the point (4, 3,−1) and has to center (3, 8, 1).
Please help due in less than an hour
Answer: 1: (0,-5) 2: (0.5,1) 3: (1.5, -4.5) 4: (-2.5,-0.5)
Step-by-step explanation:
Can someone solve it please?