HELP HELP HELP HELP
What is the equation of the trend line in the scatter plot ?
Answers
Answer:
The equation for the trend line is y=2x-10
Related Questions
please help me!! its due at 8pm
Answers
Answer:
1. 1,538.60 cm³
2. 314.00 m³
Step-by-step explanation:
1. Given:
Diameter = 14 cm
Radius (r) = ½(14) = 7 cm
height (h) = 10 cm
π = 3.14
Volume of cylinder = πr²h
Plug in the values
V = 3.14*7²*10
V = 1,538.60 cm³
2. Given:
Radius (r) = 5 m
Height (h) = √(13² - 5²) = √144 = 12 m
π = 3.14
Volume of cone = ⅓πr²h
Plug in the values
V = ⅓*3.14*5²*12
V = 314.00 m³
Is quadrilateral UVWX a parallelogram? Why or why not?
A)
There isn't enough information.
B)
Yes, because adjacent sides aren't perpendicular.
C)
No, because opposite sides aren't congruent.
D)
Yes, because opposite sides are parallel.
Answers
Answer:
D) Yes, because opposite sides are parallel.
Step-by-step explanation:
please help with this
Answers
Answer:
5.5 or simply 6
Step-by-step explanation:
6 = 33
1 = x
6x = 33
x = 5.5 ~6
—————————————————————-
A researcher investigates if chocolate affects mood. She recruits college students to take a mood inventory, ingest a quarter pound of chocolate and then complete the mood inventory again. Given the following confidence interval [2.34, 5.41], make a decision about the hypotheses.
And explain why?
A) Reject the null hypothesis and conclude that chocolate affected mood because zero, or no effect, does not fall within the confidence interval.
B) Reject the null hypothesis and conclude chocolate lowers affect because the confidence interval includes small numbers.
C) Fail to reject the null hypothesis because the confidence interval is positive.
D) Fail to reject the null hypothesis and conclude the effect size is small for this study.
Answers
Answer:
A) Reject the null hypothesis and conclude that chocolate affected mood because zero, or no effect, does not fall within the confidence interval
Step-by-step explanation:
The confidence interval could be used as a tool to test an hypothesis on a some certain conditions. When we obtain a confidence interval whose range includes the value 0, we would fail to reject the null hypothesis of such analysis as this upholds the truth of the null hypothesis. However, if the interval does not contain the value 0, we reject the null and claim that there is significant evidence to accept the alternative hypothesis.
Hence, for the confidence interval given [2.34, 5.41], the interval does not contain the value 0, Hence, we reject the null.
Yuan reads 10 books from the library each month for x months in a row. Write an expression to show
how many books Yuan read in all. Then, find the number of books Yuan read if he read for 2 months.
Answers
Answer:
10x
20
Step-by-step explanation:
expression
10x
for x = 2
10 (2)
20
help me solve this problem from kahn academy
Answers
Answer:
150
Step-by-step explanation:
Angle A= angle b
8x-10=3x+90
5x=100
x=20
Angle B=150
Answer:
150
Step-by-step explanation:
i hope this helps sorry if not m wrong
Can someone do these questions 1-3 please i have an F in math now :/
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2. 428.4
3. i don’t remember how to do the last one.
If the angle is 105, what is the supplementary angle? ANSWER QUICKLY PLS
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= 75
Hence supplement = 75
Pla mark brainliest.
Have a great day
If im painting 4 boards and it takes me 7 minuts to paint each board how long would take me to finish 4 more boards
Answers
Answer:
14
Step-by-step explanation:
4 boards=7 minutes
7x2=14
4b+4b=8b
7m+7m=14m
b=boards m=minutes
Answer:
If you are calculating the answer for the first 4 boards, then the answer is 28 minutes. If you are saying the first 4 plus the next 4, it is 56 minutes.
Step-by-step explanation:
4 times 7 is 28, 28 times 2 is 56.
Lynn's cruise lasted 6 day 18 hr. Convert the time to hours.
Provide your answer below:
Answers
Answer:
162 hours
Step-by-step explanation:
1 day= 24 hours
24 times 6= 144
144 + 18= 162
[tex] \huge \mathtt \green{Question}[/tex]
Lynn's cruise lasted 6 day 18 hr. Convert the time to hours.
[tex] \huge \mathtt \green {Answer}[/tex]
We know that 1 day = 24 hr.
So, 6 days = 24 × 6
= 144
So, 6 days 18 hr = 162 hr
Find the equation of the circle with center at (
1, 4) and passes through the point (1, 4).
Answers
Answer:
desmos
Step-by-step explanation:
1 2 3 4
What is the measure of angle LMQ
Answers
Answer:
Option B, 42°
Hope this helps!
The measure of ∠LMQ = 42°.
What is an angle measure?When two lines or rays intersect at a single point, an angle is created. The vertex is the term for the shared point. An angle measure in geometry is the length of the angle created by two rays or arms meeting at a common vertex.
In the ΔQMR,
The sum of all the angles is 180°.
65° + 45° + ∠RMQ = 180°
∠RMQ = 70°
In the ΔMNL,
The sum of all the angles is 180°.
65° + 45° + ∠LMN = 180°
∠LMN = 68°
That means,
measure of angle LMQ = 180° - ∠LMN - ∠RMQ
∠LMQ = 180° - 138°
∠LMQ = 42°
Therefore, ∠LMQ = 42°.
To learn more about the angle measure;
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Let g be the function given by g(x) = 3 − x x + 5 .
Find and simplify g(2) − 1 g(−3)
.A) − 1 21
.B) − 2 21.
C)− 4 21
.D)− 8 21
Answers
Answer:C) -4/21
Step-by-step explanation:
The set of life spans of an appliance is normally distributed with a mean y = 48 months and a standard deviation or
8 months. What is the z-score of an appliance that stopped working at 64 months?
Answers
Answer:
The set of life spans of an appliance is normally distributed with a mean µ= 48 months and a standard deviation σ= 8 months. ... Thanh finds that his grade on the test has a z-score of -2.5. ... are normally distributed, and the probability that the city gets more than 43.2 inches of rain in a year is given by P(z≥1.5)=0.0668.
Step-by-step explanation:
=============================================================
Explanation:
The raw score is x = 64, and we want to find its corresponding z score.
The mean and standard deviation are mu = 48 and sigma = 8 respectively.
The z score is...
z = (x-mu)/sigma
z = (64-48)/8
z = 16/8
z = 2
A z score of 2 means we're 2 standard deviations above the mean.
As the formula above implies, we find the difference from the raw score (x) to the mean (mu). Then we divide over sigma to find out how many sigma steps we have to take to go from mu to x.
A negative z score would indicate the raw score is below the mean.
I need help with the solutions for 19,20,21 thank you
Answers
Answer:
GIVEN :-
Coordinates of points are :-
(-5 , 12)(2 , 8)(3 , -6)TO FIND :-
All the trigonometric values of given pointsFACTS TO KNOW BEFORE SOLVING :-
It's important to know that :-
In 1st quadrant (0° to 90°) , all the trigonometric values are positive .In 2nd quadrant (90° to 180°) , except sin & cosec , rest all trigonometric values are negative.In 3rd quadrant (180° to 270°) , except tan & cot , rest all trigonometric values are negative.In 4th quadrant (270° to 360°) , except cos & sec , rest all all trigonometric values are negative.SOLUTION :-
Q1)
Plot (-5,12) on the cartesian plane and name it 'A'Drop a perpendicular to x-axis from 'A' and name the point 'B' where the perpendicular meets x-axis.Join the point A with the origin 'O'.You'll notice a right-angled ΔABO formed (∠B = 90°) in the 2nd quadrant of the plane whose :-
length of perpendicular of triangle (AB) = 12 unitslength of base of triangle (OB) = 5 unitslength of hypotenuse (OA) = 13 unitsLet the angle between OA & positive x-axis be θ.
⇒ ∠AOB = 180 - θ
So ,
[tex]\sin (AOB) = \sin(180 - \theta) = \sin \theta = \frac{12}{13}[/tex][tex]\cos(AOB) = \cos (180 - \theta) = -\cos \theta = -\frac{5}{13}[/tex][tex]\tan(AOB) = \tan(180 - \theta) = -tan \theta = -\frac{12}{5}[/tex][tex]\csc(AOB) = \csc(180 - \theta) = \csc \theta = \frac{1}{\sin \theta} = \frac{13}{12}[/tex][tex]\sec(AOB) = \sec(180 - \theta) = -\sec \theta = -\frac{1}{\cos \theta} = -\frac{13}{5}[/tex][tex]\cot(AOB) = \cot(180 - \theta) = -\cot \theta = -\frac{1}{\tan \theta} = -\frac{5}{12}[/tex]Q2)
Plot (2,8) on the cartesian plane and name it 'A'Drop a perpendicular to x-axis from 'A' and name the point 'B' where the perpendicular meets x-axis.Join the point A with the origin 'O'.You'll notice a right-angled ΔABO formed (∠B = 90°) in the 1st quadrant of the plane whose :-
length of perpendicular of triangle (AB) = 8 unitslength of base of triangle (OB) = 2 unitslength of hypotenuse (OA) = 2√17 unitsLet the angle between OA & positive x-axis be θ.
⇒ ∠AOB = θ
So ,
[tex]\sin(AOB) = \sin \theta = \frac{8}{2\sqrt{17} } = \frac{4}{\sqrt{17} }[/tex][tex]\cos(AOB) = \cos \theta = \frac{2}{2\sqrt{17}} = \frac{1}{\sqrt{17}}[/tex][tex]\tan(AOB) = \tan \theta = \frac{8}{2} = 4[/tex][tex]\csc(AOB) = \csc \theta = \frac{1}{\sin \theta} = \frac{\sqrt{17}}{4}[/tex][tex]\sec(AOB) = \sec \theta = \frac{1}{\cos \theta} = \sqrt{17}[/tex][tex]\cot (AOB) = \cot \theta = \frac{1}{\tan \theta} = \frac{1}{4}[/tex]Q3)
Plot (3,-6) on the cartesian plane and name it 'A'Drop a perpendicular to x-axis from 'A' and name the point 'B' where the perpendicular meets x-axis.Join the point A with the origin 'O'.You'll notice a right-angled ΔABO formed (∠B = 90°) in the 4th quadrant of the plane whose :-
length of perpendicular of triangle (AB) = 6 unitslength of base of triangle (OB) = 3 unitslength of hypotenuse (OA) = 3√5 unitsLet the angle between OA & positive x-axis be θ . [Assume it in counterclockwise direction].
⇒ ∠AOB = 360 - θ
So ,
[tex]\sin(AOB) = \sin(360 -\theta) = -\sin \theta = -\frac{6}{3\sqrt{5} } = -\frac{2}{\sqrt{5} }[/tex][tex]\cos(AOB) = \cos(360 - \theta) = \cos \theta = \frac{3}{3\sqrt{5} } = \frac{1}{\sqrt{5} }[/tex][tex]\tan(AOB) = \tan(360 - \theta) = -tan \theta = -\frac{6}{3} = -2[/tex][tex]\csc(AOB) = \csc(360 - \theta) = -\csc \theta = -\frac{1}{\sin \theta} = -\frac{\sqrt{5} }{2}[/tex][tex]\sec(AOB) =\sec (360 - \theta) = \sec \theta = \frac{1}{\cos \theta} = \sqrt{5}[/tex][tex]\cot(AOB) = \cot(360 - \theta) = -\cot \theta = -\frac{1}{\tan \theta} = -\frac{1}{2}[/tex]A ball is thrown into the air at a speed of 45 feet per second from a starting height of 10 feet in the air. How long will it take for the ball to hit the ground?
Answers
Answer:
450
Step-by-step explanation:
I got this by multiplying 45*10 which equals 450 that is how i got it
10ft/ 45ft per sec = time
Time = 22 seconds
Suppose that $7000 is invested at an interest rate of 5.2% per year, compounded
continuously. How many years does it take for the money to grow to $14000 ?
Answers
Answer:
use the formula 14000=7000(1+5.2÷100)^t-1
4(w+1)=−6
w = ?
HURRY FAST!
Answers
Answer:
4w+4=-6
4w=-6-4
4w=-10
4w/4=-10/4
w=-2.5
What the supplement of 106 degrees? *
Answers
Answer:
74
Step-by-step explanation:
Supplement means whatever number added up to 180
For example:
60 and 120 are supplements since they add up to 180
Answer:
180
- 106
---------
74
A teacher is making a history test composed of the same number of multiple-choice questions as short-answer questions. She estimates it will take students an average of 2 minutes to complete each multiple-choice question and an average of 3.5 minutes to complete each short-answer question. Write an inequality to determine how many questions, n, the teacher can include if the test must take students less than 45 minutes to complete.
Answers
Answer:
The inequality is [tex]5.5n \leq 45[/tex]
Step-by-step explanation:
Total time:
The total time to complete the test is the sum of the number of multiple-choice questions multiplied by the time it takes to solve each and the number of short-answer questions multiply by the time it takes to solve each.
In this question:
Same number(n) of both.
Multiple-choice takes 2 minutes, short-answer takes 3.5 minutes. The total time is given by:
[tex]T = 2n + 3.5n = 5.5n[/tex]
Write an inequality to determine how many questions, n, the teacher can include if the test must take students less than 45 minutes to complete.?
This means that:
[tex]T \leq 45[/tex]
So
[tex]5.5n \leq 45[/tex]
The inequality is [tex]5.5n \leq 45[/tex]
Mr. Davis drives 508 miles in eight hours. At this rate, how many miles
does he drive in six hours?
Answers
Answer:
he drives 254 miles in 6 hours
Step-by-step explanation:
Answer:
254 miles in 6 hours
Step-by-step explanation:
Enter the coordinates of the point
on the unit circle at the given angle.
225°
[?]
2
(-
-
2.
Answers
its both 2
Step-by-step explanation:
base on my research
The coordinates of the point on the unit circle at angle 225° are [tex]\bold{(-\frac{\sqrt{2} }{2}, -\frac{\sqrt{2} }{2})}[/tex]
What are the coordinates of the point on the circle?The coordinates of the points of the circle x² + y² = r² are [tex](r~cos\theta, r~sin\theta)[/tex]
What is unit circle?"It is a circle with radius 1."
For given example,
We have been given an angle of 225°
⇒ [tex]\theta[/tex] = 225°
We need to find the coordinates of the point on the unit circle at an angle 225°.
Here, r = 1
So, the first coordinate would be,
[tex]r~cos\theta=(1)~cos(225^{\circ})\\\\\Rightarrow r~cos(225^{\circ})=cos(270^{\circ} - 45^{\circ})\\\\\Rightarrow r~cos(225^{\circ})t=cos(270^{\circ}) cos(45^{\circ})+sin(270^{\circ}) sin(45^{\circ})\\\\\Rightarrow r~cos(225^{\circ})=0+(-1)(\frac{1}{\sqrt{2} } )\\\\\Rightarrow r~cos(225^{\circ})=\bold{\frac{-1}{\sqrt{2} }}\\\\\Rightarrow r~cos(225^{\circ})=\bold{-\frac{\sqrt{2} }{2} }[/tex]
Now we find the second coordinate of the point.
[tex]r~sin\theta=(1)~sin(225^{\circ})\\\\\Rightarrow r~sin(225^{\circ})=sin(270^{\circ} - 45^{\circ})\\\\\Rightarrow r~sin(225^{\circ})=sin(270^{\circ}) cos(45^{\circ})-cos(270^{\circ}) sin(45^{\circ})\\\\\Rightarrow r~sin(225^{\circ})=(-1)(\frac{1}{\sqrt{2} } )-0\\\\\Rightarrow r~sin(225^{\circ})=\bold{\frac{-1}{\sqrt{2} }}\\\\\Rightarrow r~sin(225^{\circ})=\bold{-\frac{\sqrt{2} }{2} }[/tex]
Therefore, the coordinates of the point on the unit circle are [tex](-\frac{\sqrt{2} }{2}, -\frac{\sqrt{2} }{2})[/tex]
Learn more about coordinates of point on the circle here:
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Is it possible to construct a triangle with the given side lengths?
1 ft, 6 ft, 9 ft
Yes or no?
Answers
EXPLAINTION
1. Define: (1) factor (ii) multiple. Give five examples of each.it
Answers
Answer:
A factor is a number that when its multiplied with another number, gives a product of a given number. Example: The factors of 21 are 7,3,1 and 21. A multiple is a number that can be divided by another number a certain amount of times evenly (without a remainder). Example: Some multiples of 4 are: 8, 12, 16, and 20.
Which choices are equivalent to the exponential expression below? Check all
that apply
Oh
A.
52
O B.
O C. 2:
D.
9
25
E.
9
F.
6
10
Answers
Answer:
a b and d
Step-by-step explanation:
I did it on edge and got it right
I need help solving the picture below please
Answers
Answer:
x = 3
Step-by-step explanation:
From the given parallelogram;
m<XWC = m<XYC
Given
m<XWC = 2x+5
m<XYC = 3x+2
Equate
2x+5 = 3x+2
2x - 3x = 2 - 5
-x = -3
x = 3
Hence the value of x is 3
Function Composition:
Let the function [tex]f(x)= 3+6x[/tex] , determine:
Answers
Answer:
Given
f(x) = 3 + 6xA
Find the inverse of f(x):
x = 3 + 6f⁻¹(x)6f⁻¹(x) = x - 3f⁻¹(x) = (x - 3) / 6B
f · f⁻¹( ∛5/6) = f( f⁻¹( ∛5/6)) = f((∛5/6 - 3)/6) = 3 + 6((∛5/6 - 3)/6) =3 + ∛5/6 - 3 =∛5/6C
f · f⁻¹(x) = f(f⁻¹(x)) = f((x - 3)/6) = 3 + 6(x - 3)/6 = 3 + x - 3 = xThree less than two times a number is 55. What is the number?
Answers
26
step-by-step explanation:
3 - 2n = 55
-3 -3
-2n = 52
/-2 /-2
n = 26
Answer:26
Step-by-step explanation:
guys help me
can u give me the answer
Answers
Answer:
A factor, in mathematics, a number or algebraic expression that divides another number or expression evenly, with no remainder. A multiple of a number is any integer multiplied by the number. Try it yourself, now you know the how it works.
Click on picture to see
Answers
Answer:
none of above
Step-by-step explanation:
