Answer:
b or d
Step-by-step explanation:
im pretty sure because multiplying it makes more sense and also stop cheating on map testing
The equation of the line for the given data set of scatter plots will be y =- x. Since their Mean(M) is equal.
What is the Linear equation?A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.
Given a data set of the number of text messages sent (x) and text messages received (y) by 10 students in a half hour.
so
x y
0 2
5 1
6 4
8 12
11 11
12 13
15 11
17 20
21 22
24 23
Where M of x = 11.9
also the M of y = 11.9
Sum of X = 119
Sum of Y = 119
Mean X = 11.9
Mean Y = 11.9
The sum of squares (SSX) = 504.9
The sum of products (SP) = 504.9
Regression Equation = ŷ = bX + a
b = SP/SSX = 504.9/504.9 = 1
a = MY - bMX = 11.9 - (1*11.9) = 0
ŷ = 1X - 0
Thus the equation of line best fit will be y = x.
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Help if you can -
8 commercials in 15 minutes
Find Unit Rate
Plzz show work!
Also, dont add any type of links
Thanks!! :D
Answer:
1.875 commercials a minute
Step-by-step explanation:
h ft
5 ft
30 ft
6 ft
A. 20
B.25
C.23
D.30
Please help!!
Answer:
25ft
Step-by-step explanation:
You take the bigger length of the two triangles and divide by the the smaller length of the smaller triangle. This is what the equation would look like:
30/6=5
Then you multiply 5 to the height of the smaller triangle and you got the height for the bigger triangle:
5 x 5=25
I hope this helped you!
Shelia's measured glucose level one hour after a sugary drink varies according to the normal distribution with μ = 132 mg/dL and σ = 11.3 mg/dL. what is the level L such that there is probability only 0.01 that the mean glucose level of 5 test results falls above L?
Answer:
134.6
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula. This is X when Z has a p-value of 1-0.01 = 0.99. So it is X when Z = 2.325.
The level is L = 134.6
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation, large sample size can be approximated to a normal distribution with a mean and standard deviation
Please help ASAP 50 pts!
Given Circle D, if AB = 6 units, find the length of AC.
Answer:
here ∆ABDcongruent to ∆CBD
AB=BC
now
AC=AB+BC=6+6=12units
length of AC=12 units
please help ill give brainly !! (no links)
Alfred Weagner noticed that the outline of many continents fit together, much like a puzzle leading him to propose the idea of a single super continental. This continental is known as-
A ) Eurasia
B ) Ind-Australia
C ) America
D ) Pangaea
Answer:
This continental is known as-
D) Pangaea
Answer:
choice D ) Pangaea
1) Find two positive consecutive integers that have a product of 30?
Answer:
{-6,-5} and {5,6}
Step-by-step explanation:
let me know if this is what you are looking for :)
If you actually know plz give an explanation to the answer so i know you aren't just answering for points, please help this is due before 12:00.
Answer:
D
Step-by-step explanation:
V_C_C
for the vowel = 2/5
for the consonant = 3/5
for next three picks it should be 2/5 * 3/5 *3/5 = 0.144
Answer:
D
Step-by-step explanation:
Vowel is 2/5 or 40%
Consonant is 3/5 or 60%
VCC is .4 x .6 x .6 = .144
pls help!!!
Find the missing side. (Round to the nearest tenth, if necessary)
Answer:
7.8
Step-by-step explanation:
We can use pythagorean theorem [tex](a^2+b^2=c^2)[/tex] where a and b are sides of a right triangle and c is the hypotenuse.
[tex]x^2+13.3^2=15.4^2[/tex].
[tex]x^2=15.4^2-13.3^2\\[/tex]
[tex]x^2=237.16-176.89\\x^2=60.27\\x=7.763[/tex]
Rounded to the nearest tenth, x = 7.8
Answer:
This is your answer ☺️☺️☺️. If I'm right so,
Please mark me as brainliest. thanks!!!
A student claims that 3√80 is in the simplest radical form. Which statement is true?
A. The claim is correct because 80 is not divisible by three.
B. The claim is correct because 80 is not a perfect cube.
C. The claim is incorrect because 80 has a factor of 4.
D. The claim is incorrect because 80 has a factor of 8.
Don't put a link as the answer.
Answer:
C)
Step-by-step explanation:
3[tex]\sqrt{80}[/tex] = 3 · [tex]\sqrt{4}[/tex]· [tex]\sqrt{4}[/tex] · [tex]\sqrt{5}[/tex] which simplifies to 12[tex]\sqrt{5}[/tex]
solve the variable of x. 3^3^x= 1/243
Answer:
-5
Step-by-step explanation:
The simplest form of the expression -2x^2(x-5)+x(2x^2-10x)+x is ?
A cylinder has a volume of 550 cubic feet. If the height of the cylinder is 15 feet, what is the radius of the cylinder? Use 3.14 for π. Round to the nearest hundredth
Answer:
r = 3.42
Step-by-step explanation:
the equation for volume is V = pi r^2 h
550 = 3.14 r^2 15
36 2/3 = 3.14 r ^2
11.6772824 = r^2
3.41720389 = r
r = 3.42
Answer:
3.42
Step-by-step explanation:
(8)
Tricia used 2 bags of sugar to bake some cupcakes.
She used of another bag of sugar to make some macaroons.
How many bags of sugar did she use altogether?
bags of sugar
Answer:
She used 3.
Step-by-step explanation:
You have 2 bags.
You have another bag.
You use all of them.
How many did you use altogether?
3.
Tricia used 2.5 bags of sugar altogether.
What is an expression?In mathematics, an expression is a combination of numbers, variables, operators, and/or functions that represents a mathematical quantity or relationship. It can be as simple as a single number or variable, or it can be more complex, involving multiple terms and operations.
Tricia used 2 bags of sugar to make cupcakes and used 1/2 of another bag of sugar to make macaroons.
Therefore, the total amount of sugar she used is:
2 + 1/2 = 2.5 bags of sugar.
So, The number of bags Tricia used was 2.5 bags of sugar altogether.
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given the measures of an angle below give the measure of complement and supplement
Answer: Where's the picture of the angle?
Step-by-step explanation:??
please help, i'll give brainliest. (don't send a link please)
Answer:
A
Step-by-step explanation:
y+5<8
Subtract 5 from each side
5+5-5 <8-5
y<3
Since there is no equals sign, there is an open circle at 3
y is less than so the line goes to the left
Choice A
Tiffany catches a fish thats weighs 0.7 lbs. Frank catches a fish that weighs 0.6 times as much as tiffanys fish. How many pounds does Franks fish weigh? Explain how you got your answer using the grid.
Answer:
Franks fish weighs .42 lbs
Step-by-step explanation:
.7 * .6 = .42
A tablet sales associate makes $84 each day that she works and makes approximately $33 in commission for each tablet that she sells. If she wants to make at least $348 in one day, at least how many tablets does she need to sell?
Answer:
8 tablets
Step-by-step explanation:
t = # tablets she must sell
348 = 33t + 84
264 = 33t
t = 8
The sales associate needs to sell at least 8 tablets in order to make at least $348 in one day.
To determine the minimum number of tablets the sales associate needs to sell in order to make at least $348 in one day, we can set up an inequality based on the given information.
Let's denote the number of tablets sold as "x."
Given:
Earnings per day (base pay) = $84
Commission per tablet sold = $33
Desired earnings for the day = $348
The total earnings for the day can be calculated as follows:
Total earnings = Base pay + (Commission per tablet * Number of tablets sold)
Total earnings ≥ Desired earnings
Setting up the inequality:
$84 + ($33 * x) ≥ $348
Simplifying the inequality:
$84 + $33x ≥ $348
Now, let's solve for x:
$33x ≥ $348 - $84
$33x ≥ $264
Dividing both sides of the inequality by $33 (the coefficient of x):
x ≥ $264 / $33
x ≥ 8
Therefore, the sales associate needs to sell at least 8 tablets in order to make at least $348 in one day.
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A woman leaves home and walks 3 mi. west, and then 4 mi. south. What is the magnitude of her displacement? Note: they are not asking you to add how far she went west and south. They are asking how far she is from home if she went directly back. Think of a triangle.
Answer:
5 milesStep-by-step explanation:
The route makes a right triangle with legs 3 mi and 4 mi, and the hypotenuse of x mi.
Use Pythagorean to find the distance:
x = [tex]\sqrt{3^2 + 4^2}[/tex] x = [tex]\sqrt{25}[/tex]x = 5 milesVector Review Practice Answers:
1. B - initial (14,-5); terminal (0,0)
2. A - sqrt(22^2 + 4^2)
3. B - <4,12>
4. D - Yes, the two vectors have the same magnitude and direction.
5. D - Vectors u and v are neither because the angle between the two vectors is not equal to 0 degrees, 90 degrees, or 180 degrees
6. C - approximately 4 mi. at a direction angle of 56 degrees northeast
7. A - approximately 174 mph at a direction angle of 58 degrees northeast
8. A - -200
9. D - W = 59 ft*lbs
10. C - u = 4/5i - 3/5j
What is the surface area of the triangular prism?
15 ft
15 ft
9 ft
40 ft
24ft
2001
2376
2592
4329
Answer: = 40 . 24
Step-by-step explanation:
A triangular prism. The rectangular sides are 24 feet by 40 feet, 40 feet by 15 feet, and 40 feet by 15 feet. The triangular sides have a base of 24 feet and height of 9 feet.
2,001 square feet
2,376 square feet
2,592 square feet
4,320 square feet
Answer: b.
Step-by-step explanation: A triangular prism is the one which has 3 rectangular sides and 2 triangular sides. To find the surface area of a triangular prism, we have to find the surface area of 3 rectangular side and 2 triangular sides and add them up
Surface Area (rectangle) = Length · Width
Surface Area (triangle) = (1/2)(Base)(Height)
Rectangular side 1:
Length = 40 ft
Width = 24 ft
Surface Area = 40 · 24
Surface Area = 960ft
Rectangular side 2:
Length = 40 ft
Width = 15 ft
Surface Area = 40 · 15
Surface Area = 600ft
Rectangular side 3:
Length = 40 ft
Width = 15 ft
Surface Area = 40 · 15
Surface Area = 600ft
Triangular side 1:
Base = 24 ft
height = 9 ft
Surface Area = (1/2)(24)(9)
Surface Area = 108ft
Triangular side 2:
Base = 24 ft
height = 9 ft
Surface Area = (1/2)(24)(9)
Surface Area = 108ft
SURFACE AREA OF TRIANGULAR PRISM:
Add all surface areas found above
Surface area = 960 + 600 + 600 + 108 + 108
Surface area = 2376ft
Eight beads are strung in a necklace with a clasp, how many ways
can the beads be arranged?
Answer:
Number of total arrangement of beads = 2,520
Step-by-step explanation:
Given:
Number of beads in necklace = 8 beads
Find:
Number of total arrangement of beads
Computation:
Changing beads is a cyclic permutation,
So,
Formula to find number of total arrangement in cyclic permutation
(n-1)!/2 , where n = number of item
So,
(n-1)!/2
Number of total arrangement of beads = (8-1)!/2
Number of total arrangement of beads = (7)!/2
Number of total arrangement of beads = (7 x 6 x 5 x 4 x 3 x 2 x 1) / 2
Number of total arrangement of beads = 5,040 / 2
Number of total arrangement of beads = 2,520
Please help!!! These are the options
From the table Riley is moving forward on the interval [0,
A.4.5 B. 1.5 C.3 D.6.
It takes Riley A.3 B.4.5 C.6 D.1.5 seconds to swing forward,back and then return to her standing position. Riley reaches a maximum distance of A.6.75 B.38.9 C.1.5 D.55 inches of her starting position.
Answer:
From the table, Riley is moving forward on the interval [0,1.5].
I takes Riley 6 seconds to swing forward, back, and then return to her starting position.
Riley reaches a maximum distance of 38.9 inches from her starting position.
Step-by-step explanation:
PLATO/Edmentum
The blanks in the given statements can be filled as [0,1.5], 3 seconds, and 55 inches, respectively.
What is a table?Mathematical tables are collections of numbers that display the outcomes of calculations made using various inputs.
Given that in the table the position of Riley with respect to time. Also, If her position is ahead of its initial position it is positive, while if she is behind her initial position it is negative.
Now as per the table, the statements can be completed as,
Riley is moving forward on the interval [0, 1.5]It takes Riley 3 seconds to swing forward, back, and then return to her starting position.Riley reaches a maximum distance 55 of Inches from her starting position.Hence, the blanks in the given statements can be filled as [0,1.5], 3 seconds, and 55 inches, respectively.
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The figure below has a volume of 60 cubic units. How many more cubes will it take to fill the figure?
1 cubic unit
5 cubic units
40 cubic units
55 cubic units
60 cubic units
Answer:
40 cubic units
Step-by-step explanation:
Tasha purchased an iPad for $625. A year later, it was selling for $500. What was the percent of change?
Answer:
-20
Step-by-step explanation:
i used a percentage calculator
(33x3+6x-9)+(-33x3+9x2-10)
Answer:
9x² + 6x -19
Step-by-step explanation:
= 33x³ + 6x - 9 - 33x³ + 9x² -10
= 33x³ - 33x³ + 9x² + 6x -10 -9
= 9x² + 6x -19
Graph the equation y=−x²−8x−15 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.
Answer:
Plot these points
(-3,0)
(-5,0)
(-4,1)
(-2,-3)
(-6,-3)
Step-by-step explanation:
Let find the zeros of the equation.
We can factor this equation.
Factor out the -1.
[tex] - 1( {x}^{2} + 8x + 15)[/tex]
Factor using AC method
[tex] - 1(x + 3)(x + 5)[/tex]
Set all the terms equal to zero.
[tex]x + 3 = 0[/tex]
[tex]x + 5 = 0[/tex]
[tex]x = - 3[/tex]
[tex]x = - 5[/tex]
So our x intercepts are -3,0 and -5,0.
To find our vertex, apply the -b/2a.
[tex] \frac{8}{ - 2} = - 4[/tex]
Then
Substitute-4 for x.
[tex]y = - {4}^{2} - 8( - 4) - 15 = 1[/tex]
So our vertex is at (-4,1).
Find some other points like -2 and -6.
To find -2, substitute-2 into the quadratic.
[tex]y = - ( { - 2}^{2}) - 8( - 2) - 15 = - 3[/tex]
So -2,-3.
Since y=-4 is the axis of symmetry
-6,-3
The 5 points which satisfies the quadratic equation y = −x² − 8x − 15 is
( -5 , 0 ) ( -1 , -8 ) , ( -2 , -3 ) , ( 4 , 1 ) , ( -3 , 0 ) and the vertex point is ( 4 , 1 )
What is Quadratic Equation?
A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.
Given data ,
Let the quadratic equation be represented as A
Now , the value of A is
y = −x² − 8x − 15
On simplifying the equation , we get
y = -1 ( x² + 8x + 15 )
On factorizing the equation , we get
y = -1 ( ( x + 5 ) ( x + 3 )
So , the 2 values for x is -5 , -3
So , the two points are ( -5 , 0 ) and ( -3 , 0 )
The vertex will be -b/2a
Substituting the values in the equation , we get
The vertex = -8/2 = -4
So , when x = -4
y = -1 ( ( x + 5 ) ( x + 3 )
y = -1 ( 1 x -1 )
y = 1
So , the vertex is at the point ( 4 , 1 )
Now , when x = -1
y = -1 ( ( x + 5 ) ( x + 3 )
y = -1 ( 4 x 2 )
y = -8
So , the point is ( -1 , -8 )
Now , when x = -2
y = -1 ( ( x + 5 ) ( x + 3 )
y = -1 ( 3 x 1 )
y = -3
So , the point is ( -2 , -3 )
Hence ,
The 5 points which satisfies the quadratic equation y = −x² − 8x − 15 is
( -5 , 0 ) ( -1 , -8 ) , ( -2 , -3 ) , ( 4 , 1 ) , ( -3 , 0 ) and the vertex point is ( 4 , 1 )
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Pls answerwer for me
what distance will the divider be set at the scribe a 02.8" circle? .75" or 1.4" or 2.8" or 5.6"
9514 1404 393
Answer:
(b) 1.4"
Step-by-step explanation:
A 2.8" circle is one that has a diameter of 2.8". The divider will be set to the radius, which is half the diameter.
The divider is set to 1.4".
What is the correct rule for y, in terms of x?
Answer:
Step-by-step explanation:
The correct rule for y in terms of x is
y = 3x - 4
we can check even
here when x = 1
y = 3 * 1 - 4 = - 1
similarly
when x = 2
y = 3 * 2 - 4 = 2
and so on you can check.
hope it helps :)
Answer:
the rule is y=3x-4
Step-by-step explanation:
m=y2-y1/x2-x1
m=2--1/2-1
m= 3/1
m=3
general equation of a line,
y=mx+c
if y=3x+c
if x=1 y=-1
-1=3+c
-4=c
therefore y=3x-4
The shape given below can be decomposed into which two figures? (Pick two)
Answer:
C and D
Step-by-step explanation:
I would chose this because the square will have all sides of 3 since all the sides are the same size it classifies as a square. Then a right triangle looking at the shape you would have left.
A rectangle is a four sided polygon having all the internal angles equal to 90 degrees. The shape given below can be decomposed into two figures, they are rectangle and right triangle. The correct options are A and D.
What is a trapezium?The trapezium is defined as a quadrilateral with one pair of parallel opposite sides. The parallel sides of a trapezium are called the bases and the non-parallel sides of a trapezium are known as legs. It is also called as the trapezoid.
A trapezium is a closed shape which has four sides and four angles. Anyone pair of opposite sides of a trapezium are parallel to each other. If the legs are of equal length, then it is called the isosceless trapezium.
A triangle in which one of its interior angles is equal to 90 degrees or any one angle is a right angle is the right triangle.
Thus the correct options are A and D.
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How many green jolos are there in balans colony?
Answer: B. 280
Step-by-step explanation:
ur welcome
Answer:
B) 280
Step-by-step explanation: