An internal angle of a regular polygon is 160 degrees, how many sides does it have
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Related Questions
Evaluate a−b if a=−2.5 and b=2/5 . Write your answer in simplest form.
Answers
Answer:
0
Step-by-step explanation:
2.5=2/5 so 2.5-2/5=0
.
A student is trying to solve the system of two equations given below:
Equation P: y + z = 6
Equation Q: 5y + 9z = 1
Which of the following is a possible step used in eliminating the y-term?
A: (y + z = 6) ⋅ 9
B: (y + z = 6) ⋅ −5
C: (5y + 9z = 1) ⋅ 9
D: (5y + 9z = 1) ⋅ 5
Answers
Answer: B: (y + z = 6) × -5
Step-by-step explanation:
if you multiply 'y' by -5 it turns into -5y. Therefore when you add -5y and 5y together, you get 0y which is what you want when eliminating the y-term.
If right I’ll give brainliest
Answers
Answer: A. 85
Step-by-step explanation:
To set up an equation to solve for x you need to know:
The to 2 interior (inside) angles, opposite of the exterior, added together is equal to the exterior (outside) angle.
2x + 3 + 5x - 2 = 8x - 11
7x + 1 = 8x - 11
x = 12
Plug x back into the exterior angle outside angle
8(12)-11
96-11
85
The polynomial function f(x) is a fourth degree polynomial. Which of the following could be the complete list of the roots of f(x)
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Based on the given options, both 3,4,5,6 and 3,4,5,6i could be the complete list of roots for a fourth-degree polynomial. So option 1 and 2 are correct answer.
A fourth-degree polynomial function can have up to four distinct roots. The given options are:
3, 4, 5, 6: This option consists of four real roots, which is possible for a fourth-degree polynomial.3, 4, 5, 6i: This option consists of three real roots (3, 4, and 5) and one complex root (6i). It is also a valid possibility for a fourth-degree polynomial.3, 4, 4+i√x: This option consists of three real roots (3 and 4) and one complex root (4+i√x). However, the presence of the square root (√x) makes it unclear if this is a valid root for a fourth-degree polynomial.3, 4, 5+i, -5+i: This option consists of two real roots (3 and 4) and two complex roots (5+i and -5+i). It is possible for a fourth-degree polynomial to have complex roots.Therefore, both options 1 and 2 could be the complete list of roots for a fourth-degree polynomial.
The question should be:
The polynomial function f(x) is a fourth degree polynomial. Which of the following could be the complete list of the roots of f(x)
1. 3,4,5,6
2. 3,4,5,6i
3. 3,4,4+i\(\sqrt{6}\)
4. 3,4,5+i, 5+i, -5+i
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\(what \: is \: the \: radius \: 11 \sqrt{2(9.8) r} \)
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Answer:
radius r = 9.8 m
base circumference C = 61.575216 m
volume V = 1971.22792 m3
curved surface area A = 603.437117 m2
base surface area B = 301.718558 m2
total surface area K = 905.155675 m2
Please Help ASAP!!!!!!!!
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Answer:
B
Step-by-step explanation:
Because its just correct
Answer the question about the following polynomial .Options first part; Quintic, quadratic, cubic, linear, quartic
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The given expression represents a polydomial of degree 4, the leading term is the one that has the variable with the greater exponent, the leading coefficient is the coefficient of the leading term, and the constant is the term without variable.
The expression represents a quartic polynomial with 2 terms. The constant term is 1, the leading term is 1/3 x^4, and the leading coefficient is 1/3OMG HELP PLS IM PANICKING OMG OMG I GOT A F IN MATH AND I ONLY HAVE 1 DAY TO CHANGE MY GRADE BECAUSE TOMORROW IS THE FINAL REPORT CARD RESULTS AND I DONT WANNA FAIL PLS HELP-
Answers
Answer:
2/5 bucket
Step-by-step explanation:
1/2 and 3/4 are equal. So 2/5 is wrong.
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In a class of 24 the ratio is girls to boys is 3:5 what is the total of boys
Answers
Answer:
15 boys
Step-by-step explanation:
5+3 is 8
so 8*3 is 24 which is total number of students
you would then multiply 5 by 3 which gets you 15 boys and 9 girls
HELP ASAP PLSS 10 POINTS
Answers
let me know if you have any ?s
Answer:
It's the last one, 2.5
Step-by-step explanation:
What is an equation in point-slope form of the line that passes through (-7. 1) and (-3, 9)?
A. y+ 3 = 2(x-9)
B. y-3 = 2(x +9)
C. y + 9 = 2(x - 3)
D. y - 9 = 2(x + 3)
Answers
Answer:
D
Step-by-step explanation:
general equation of point slope is
(y-y1)=m(x-x1) where
m-is the slope
(x1,x2) is any point that belongs to the line
For (-7,1) and (-3, 9) you have to
first find the slope
m= (y2-y1) /(x2-x1) = (9-1)/ (-3- -7)= 8/(-3+7) = 8/4 =2
second pick any of your 2 given points for example (-3, 9)
now you substitute m=2, and (-3,9) in your general equation
(y-9) = 2( x- -3) so the equation is (x-9) =2(x+3)
Adaptive Cruise Control with Cloud Connectivity Objective Use MATLA to develop and implement an adaptive cruise control system for vehicles that automatically adjusts the speed to maintain a safe distance from vehicles ahead. The speed information has to be uploaded on the cloud to support connected vehicles and intelligent transport. Hardware Arduino uno x 1, button x 5, distance sensor x 1, 4 digit 7-segment anode display x 1 Description Implement an adaptive cruise control system using the Arduino UNO board. The system is controlled by five buttons of (1) Set_speed, (2) Adaptive_speed, (3) Cancel, (4) Increase_speed, and (5) Decrease_speed. After power on, the display has to show the initial speed of 0. 1. When the increase_speed button is pressed, the speed increases, and when the Decrease_speed button is pressed the speed decreases however without pressing the Set_speed button the speed will not remain constant and it changes slowly over time. 2. When the Set_speed button is pressed the system enters the cruise control mode where the speed is held constant. In this mode, the Increase_speed button and the Decrease_speed button are still functional and can be used to change the Set_speed. If the Cancel button is pressed, the system quits the cruise control mode where the speed decreases slowly. 3. If the Adaptive_speed button is pressed, the speed is set and held constant until a vehicle shows up at the front or an object is detected where the speed automatically decreases. When the road becomes clear, the speed increases to reach the set speed again. In the adaptive cruise control mode, the display has to blink to differentiate this mode from the cruise mode. In this mode, the Increase_speed button and the Decrease_speed button do not function but the Cancel button can still be used to quit the adaptive cruise mode. If the Cancel button is pressed, the display stops blinking and the vehicle speed begins to slow down. 4. The implemented system has to be able to communicate with the ThingSpeak platform to store the speed data on the cloud. ThingSpeak is an Internet of Things (IoT) application that supports MATLAB to analyze and visualize data
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The objective is to develop and implement an adaptive cruise control system for vehicles using MATLAB, Arduino UNO, and ThingSpeak that automatically adjusts the speed to maintain a safe distance from vehicles ahead and uploads speed information to the cloud for connected vehicles and intelligent transport.
The system uses an Arduino UNO board, five buttons, a distance sensor, and a 4-digit 7-segment anode display. The buttons include Set_speed, Adaptive_speed, Cancel, Increase_speed, and Decrease_speed. The system has two modes, cruise control, and adaptive cruise control.
In cruise control, the speed is held constant and can be adjusted with the Increase_speed and Decrease_speed buttons. In adaptive cruise control, the speed automatically adjusts to maintain a safe distance from vehicles or objects in front and the display blinks to indicate this mode.
The system also communicates with the ThingSpeak platform to store speed data on the cloud for analysis and visualization in MATLAB.
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1/2 - 3 1/4
1/2 - 4/5
1/6 + -3 3/4
Answers
Answer:
1/2 - 3 1\4= -11/4
1\2 - 4\5= -3\4
1\6 + -3 3\4= 43\12
6 -7- 2 =
Worth 10 points
Answers
Answer:
-3
Step-by-step explanation:
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How much water does it take to completely fill a pool that is 50 m long, 25 m wide, and 2.5 m deep?
:)
Answers
Answer: 3125m
Step-by-step explanation:
volume = h · d · w
V= 2.5 * 50 * 25
v= 3125
Khan Academy
Graph the equation.
y = 2(x-4)² + 5
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Answer: 4,5
Step-by-step explanation
What are lim x→∞ g(x) and lim x→−∞g(x)? Briefly explain your answer.
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Given the function:
\(g(x)=-3x^5+2x^4-5x^2+8\)Let's find the limit of the function as x approaches infinity and also as x approaches negative infinity.
We have:
\(\begin{gathered} \lim _{x\to\infty}-3x^5+2x^4-5x^2+8 \\ \\ \lim _{x\to\infty}g(x)=-\infty \end{gathered}\)The limit at infinity of a polynomial whose leading coefficient is negative is negative infinity.
• Also, the limit of the function at negative infinity:
\(\begin{gathered} g(x)=-3x^5+2x^4-5x^2+8 \\ \\ \lim _{x\to-\infty}g(x)=\infty \end{gathered}\)The limit at negtaive infinity of a polynomial whose leading coefficient is negative is infinity.
ANSWER:
\(\begin{gathered} \lim _{x\to\infty}g(x)=-\infty \\ \\ \lim _{x\to-\infty}g(x)=\infty \end{gathered}\)I do not understand thissss
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The radius of the circle is 50 inches.
How to find the radius of the circle?For an arc defined by an angle a, in a circle of radius R, the length of the arc is:
L = (a/360)*2*π*R
Where π = 3.14
Solving for R, we get:
R = L/((a/360)*2*π)
Replacing the values that we know:
R = (115π/6)/( (138/360)*2π)
R = 50 inches.
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solve for the variables.
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Answer:
The question gives the fact that both lines are parallel.
So:
3p - 15 = 7p - 5
3p = 7p + 10
-4p = 10
p = 10/-4
p = 5/-2
Answer:
The answer is 3p - 15 = 7p - 5 3p = 7p + 10 -4p = 10 p = 10/-4 p = 5/-2
Step-by-step explanation:
7x = 4x + 33 answers please
Answers
Answer:
x = 11
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
7x = 4x + 33
3x = 33 Bring the x's to one side.
x = 11
A water tank contains 19 gallons of water. Raymond begins to add water to the tank at a rate of 7 gallons per minute. Which equation can be used to find y, the gallons of water in the tank after x minutes?
A y = 19x + 7
B y = x + 26
C y = 7x + 19
D y = 19x + 7x
Answers
Answer:
C y = 7x +19
Step-by-step explanation:
There are 19 gallons in the water tank and 7 gallons are added when you take x amount of minutes, which gives you y.
An example is 1 minute.
Y = 7(1) + 19
y = 7 + 19
y = 26
You have to remember that there are 19 gallons already in the tank and that 1 minute has passed, which means 7 gallons have been added. Thus there are 26 gallons in the water tank.
Hope this helps. :)
Answer:
I think the answer is A hopefully this helps
TELEVISION Sharon watched 6 times as many hours of television over the weekend as David. Together they watched a total of 14 hours of television. How many hours of television did each person watch over the weekend?
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Sharon watched 12 hours of television over the weekend, while David watched 2 hours.
Let's assume that David watched x hours of television over the weekend. According to the given information, Sharon watched 6 times as many hours of television as David. Therefore, Sharon watched 6x hours of television over the weekend. Together, they watched a total of 14 hours of television.
We can set up an equation to represent this information:
x + 6x = 14
Combining like terms, we get:
7x = 14
Dividing both sides of the equation by 7, we find:
x = 2
So David watched 2 hours of television over the weekend. To find the number of hours Sharon watched, we can substitute this value back into the equation:
6x = 6 × 2 = 12
Therefore, Sharon watched 12 hours of television over the weekend.
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The longest side of a triangle is 8 more units than the shortest side. The third side is 4 times the length of the shortest side. If the perimeter of the triangle is 32 units, write and solve an equation to find the length of all 3 sides of the triangle
Answers
Answer:
10 3/4, 4 3/4, and 9 1/2
Step-by-step explanation:
We're going to let x represent the length of the longest side. The perimeter is
x +(x-6) +2(x-6) = 25
4x -18 = 25
4x = 43
x = 43/4 = 10 3/4
Then x-6 = 4 3/4.
Multiply that two to get 8 3/2 = 9 1/2
I hope this helped! :)
Find the missing number:
√25 x √25 = 25 x?
(A) 1
(B) 5
(C) 10
(D) 25
Answers
Step-by-step explanation:
since sqrt(25)×sqrt(25) = 25, then x can be any number, because x = x in all cases. and then both sides of the equation are always equal, no matter what value we give x, as long as x is a factor in both sides.
sqrt(25)×x×sqrt(25) = 25x
is always true for every x.
if the question would be
sqrt(25)×x×sqrt(25) = 25
then the answer can only be x = 1. because for every other value of x the equality is destroyed.
Someone please help me
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Graphing the linear functions, it is found that they will have the same height after 5 hours, of 21 inches.
What is a linear function?A linear function is modeled by:
y = mx + b
In which:
m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.For each function in this problem, we have that:
The initial height is the intercept.The melting rate is the slope.Hence the functions are given as follows:
A(t) = 51 - 6t.B(t) = 36 - 3t.The functions are graphed at the end of the answer, with A(t) in blue and B(t) in black. The intersection of the graphs is at (5,21), which means that they will have the same height after 5 hours, of 21 inches.
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The radius of a semi‑circle is 32. 4 km. What is the diameter of the
figure. (Decimal answer only)
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Answer:
64.8 km would be the diameter of the figure.
Luisa buys a plane ticket that has an original price of $240. She used a coupon code to get 30% discount off of the original price.She is then charged a 7% tax on the discounted price
Answers
Answer:
The final cost after the discount and tax is $179.76
Step-by-step explanation:
Since the discount is 30%, she only pays 70% of the price of the ticket.
Discounted price before tax:
70% of $240 = 0.7 × $240 = $168
Now think of the price $168 as a new price.
The price is $168 which is 100% of the price. Tax is 7% of the price, so you must pay 107% of the price.
107% of $168 = 1.07 × $168 = $179.76
Answer: The final cost after the discount and tax is $179.76
Which characteristics best describe an acute isosceles triangle
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Answer:
answer is A i and iv
two sides meet at 90°
two sides are equal in lenght
using ratio plz help im stuck i need #5 for one side 1-5 for the other
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Science= 3 * 21 = 63
Math= 5 * 21 = 105
English= 7 * 21 = 147
147- 63 = 84
Answer: 84
—
2) A rope is cut in two in the ratio 3.5:1.75. The difference between the length is 94.5 inches. What was the original length of the rope?
3.5+1.75= 5.25
94.5 + 5.25 = 99.75
Answer: 99.75
—
3) A room is 14 feet long. Find the width of the room, if the ratio of the length to the width of the room is 7:5.
Length= 14
7 • 2 = 14
5 • 2 = 10
Answer: 10 feet
—
4) Steve covers a distance of 0.7 miles in 2 minutes. How much time will it take to travel 14 miles?
0.7 miles in 2 minutes
2 • 7 = 14
0.7 • 7 = 4.9
Answer: 4.9 miles
—
5) Lara and Mae are collecting seashells. For every 9 seashells that Lara picked, Mar gathered 7 seashells. If Lara collected 63 seashells, how many fewer seashells did Mae gather?
Let’s get out the key words here.
Lara gathers 9
Mae gathers 7
Lara collects 63
Mae collects ?
**Fewer seashells**
9 • ? = 63
9 • 7 = 63
This means she would need to gather 9 seashells 7 times to get 63 seashells.
This means Mae would need to get 7 shells 7 times to get her fewer amount.
7 • 7 = 49
Mae would gather 49 seashells. But it says fewer seashells.
63- 49 = 14
Final Answer: Mae would gather 14 less seashells then Lara.
—
5) A sum of 2,700 is shared among Eric, Jo, and Richard. Jo’s share is two times that of Richard’s share. Eric’s share is three times that of Jo’s share. Find Eric’s share.
2700/3= 900
900*2= $1,800
Answer: $1,800
—
I’m not sure if all of the answers are right but I hope this still helps you :)
3x+y=8 I really don't understand this and I have tried to get the answer but always end up wrong.
3x-y=4
Answers
Answer:
The solution of the system of the equation is (2, 2)
Step-by-step explanation:
Let us solve the system of equations
∵ 3x + y = 8 ⇒ (1)
∵ 3x - y = 4 ⇒ (2)
→ Add equations (1) and (2) to eliminate y
∴ (3x + 3x) + (y + -y) = (8 + 4)
∴ 6x + 0 = 12
∴ 6x = 12
→ Divide both sides by 6 to find x
∵ \(\frac{6x}{6}=\frac{12}{6}\)
∴ x = 2
→ Substitute the value of x in equation (1) to find y
∵ 3(2) + y = 8
∴ 6 + y = 8
→ Subtract 6 from both sides
∵ 6 - 6 + y = 8 - 6
∴ y = 2
∴ The solution of the system of the equation is (2, 2)