Answers
Answer:
78.151 (approximately)
Step-by-step explanation:
To find the sector area, the formula is the angle of the sector out of 360° multiplied by the area of the full circle. Area of circle: pi × r²
=140/360×π×8²
=7/18×3.41×64
=7/18×157/50×64
=7/9×157/50×32
=7/9×157/25×16
=17584/225
=78.151 (approximately)
Related Questions
If x to the first power is a line, and you multiply two lines together, what do you get? Think of the the exponent.
Answers
Answer: A quadratic equation (also called a parabola)
Step-by-step explanation:
A line can be written as:
f(x) = a*x + c
This is a polynomial with degree 1.
Now, of we have two lines:
f(x) = a*x + c
and:
g(x) = d*x + e
And we multiply them, we will get:
f(x)*g(x) = (a*x + c)*(d*x + e) = a*d*x^2 + a*e*x + c*d*x + c*e
We can rewrite this as:
= (a*d)*x^2 + (a*e + c*d)*x + (c*e)
This is a polynomial of degree = 2, this is a quadratic equation, then if you multiply two lines together, you get a quadratic equation (or a parabola)
Answer:
ax^2+ bx + c
Step-by-step explanation:
I get a parabola, that is, an equation of the second degree
I need help to understand before my test today
Answers
Answer:
75 degrees
Step-by-step explanation:
All the angles within a triangle added together equals 180 degrees, so:
x + 25 + 2x - 5 + x = 180
add like terms
4x + 20 = 180
subtract 20 from both sides
4x = 160
divide by 4
x = 40
Now input 4 into the equation for C
2(40) - 5 = 80 - 5 = 75
2x + 3 = x -4
what is the answer
Answers
Answer:
Step 1: Subtract x from both sides.
2x+3−x=x−4−x
x+3=−4
Step 2: Subtract 3 from both sides.
x+3−3=−4−3
x=−7
Answer:
x=−7
The table below shows the linear relationship between the number of people at a picnic and the total cost of the picnic.
Answers
Problem
Choose the inequality that represents the following graph. 32 points
Answers
Answer:
D
Step-by-step explanation:
cause its going bigger, but it also has 0 in the line so it could have 0 in it. So its D
• Faith is making an acai bowl with cups of fruit for every cup of almond milk. Faith wants
to know the number of cups of fruit per cup of almond milk she uses when making the bowl.
• Which ratio of cups of fruit to cups of
Acai Bowl
almond milk is shown on the double
number line?
0
1
4 1
32
1 4
2 3
0:
4
3
0
fruit (c)
almond milk (c)
0
Answers
Answer: 4/3 : 1/2 that is the first answer the second one is 2 2/3
Step-by-step explanation: there ya go happy cheating! :)
Answer:
The answer is 4/3 : 1/2
which expression is undefined?
A.0 ÷ 5
B.(3 - 3)
_____
7
C. 8
_____
(-2+2)
D. (0 - 12)
_____
-6
Answers
Answer: C
Work: So, after you simplify that equation, it's 8/0. You Cannot divide zero like that. You can divide 0/8, but you can't with 8/0. I hope this wasn't to confusing, and Happy Holidays! :)
Write an equation in slope-intercept form for the line with slope −3 and y-intercept 2.
Answers
Answer: Y= -3x+2 is how you would write it according to the slope-intercept formula Y=MX+B
Step-by-step explanation: M being your slope
And B being your Y-Intercept
What is the approximate area of the shaded sector in the circle shown below?
Answers
Answer:
C. 297
Step-by-step explanation:
Area= 105/360(pi*18^2)
Area=296.73
Ashley just lit a new candle and then let it burn all the way down to nothing. Let LL represent the length of the candle remaining unburned, in inches, tt hours after candle was lit. A graph of LL is shown below. Write an equation for LL then state the slope of the graph and determine its interpretation in the context of the problem.OnLy answer, answers plz
Answers
The linear equation that represents the length of the candle will be L = - t + 7. And the slope will be - 1 inch per hour.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
Ashley just lit a new candle and then let it burn all the way down to nothing.
Let L represent the length of the candle remaining unburned, in inches, t hours after the candle was lit.
The slope is calculated as,
m = (0 - 7) / (7 - 0)
m = - 1 inch per hour
Then the linear equation is given as,
L = - t + 7
The linear equation that represents the length of the candle will be L = - t + 7. And the slope will be - 1 inch per hour.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ2
Jordan is knitting a sweater. He keeps track of how many balls of green and yellow yarn he uses in the table below.
If he uses 15 balls of yellow yarn, how many balls of green yarn will he need?
Answers
Answer:
the answer is B i think ..............
Because if you divide the x column by the y column you get 0.666666666667 (a lot of 0s basically) and 10/15 gets you the same answer
What is the probability of not drawing a green marble?
75%
60%
2/3
4/5
Answers
Answer:
75 %
15 ÷ 20 = 0.75
0.75 × 100 = 75%
hope it helps!
Answer:
75% :)
Step-by-step explanation:
Pls help. I need the explanations too.
Answers
Answer:
a- about 3$
b-about 8$
c-about .04
Step-by-step explanation:
a-100.8/35=2.88
2.88 is around 3
b-49.2/6=8.2
8.2 is close to 8
c-.78/20=.039
.039 is the nearest to .04
The floor of a new planetarium is a circle with a 13-yard diameter.A stage will occupy a quarter circle section of the floor.The material for the stage will cost $31.47 per square yard. If no material is wasted when making the stage,how could you find how much the stage will cost? Use 3.14
Answers
Answer:
$1,043.74Step-by-step explanation:
Area of the circular floor = πr²
Since the stage only occupies a quarter circle section of the floor, then;
Area of the stage = πr²/4
Given
diameter of the floor = 13yd
radius = 13/2 = 6.5yd
Find the area of the stage;
Area of the stage = π(6.5)²/4
Area of the stage = 3.14(42.25)/4
Area of the stage = 33.16625yd²
If the material for the stage will cost $31.47 per square yard, this means;
1yd² = $31.47
33.16625yd² = x
Cross multiply
x = 33.16625*31.47
x = 1,043.74
Hence the stage will cost $1,043.74
I’ll mark you brainlist
Answers
Answer:
-2/1
Step-by-step explanation:
to find the slope it is rise over run so the rise is two and the run is 1 so its 2/1 but its negative so it would be -2/1
hope that halepd have a good night!! :)
100 Points!!!
y(t) = distance of weight from equilibrium position
ω= angular frequency (measured in radians per second)
A = amplitude
Ø= phase (depends on initial conditions)
c1 = A sin
c2 = A cos
Prove that: Asin(ωt+Ø)=c2sinωt+c1cosωt
Note: c1 and c2 are actually with the number slightly below the letter, if that makes sense. It wouldn't let me type it that way. Anyway, if anyone can help I would really appreciate it! Thank you!
Answers
Answer:
An object moving along the x-axis is said to exhibit simple harmonic motion if its position as a function of time varies as
x(t) = x0 + A cos(ωt + φ).
The object oscillates about the equilibrium position x0. If we choose the origin of our coordinate system such that x0 = 0, then the displacement x from the equilibrium position as a function of time is given by
x(t) = A cos(ωt + φ).
A is the amplitude of the oscillation, i.e. the maximum displacement of the object from equilibrium, either in the positive or negative x-direction. Simple harmonic motion is repetitive. The period T is the time it takes the object to complete one oscillation and return to the starting position. The angular frequency ω is given by ω = 2π/T. The angular frequency is measured in radians per second. The inverse of the period is the frequency f = 1/T. The frequency f = 1/T = ω/2π of the motion gives the number of complete oscillations per unit time. It is measured in units of Hertz, (1 Hz = 1/s).
The velocity of the object as a function of time is given by
v(t) = dx(t)/dt = -ω A sin(ωt + φ),
and the acceleration is given by
a(t) = dv(t)/dt = -ω2A cos(ωt + φ) = -ω2x.
what percent of students have played an instrument for 3 years ?
(round tenths)
please help
Answers
Answer:
%22.2
Step-by-step explanation:
59-x=10!!!!!!!??????????HELP
Answers
Answer:
49
Step-by-step explanation:
59 - 49 = 10
Work check:
10 + 49 = 59
Evaluate the expression.
4.2°
Answers
Answer:
4.2°
Step-by-step explanation:
The result can be shown in multiple forms.
Exact Form: 4.2°
Decimal Form: 4.2
I hope this helps!
find the square root of 7921 ?
Answers
Answer:
±89
Step-by-step explanation:
..................
Trigonometry Problem Solving
Two farmhouses A and B are 10.3km apart. A third farmhouse C is located such that angle A=83 degrees, and angle B=59 degrees. How far is C from A?
Answers
Step-by-step explanation:
Angle C = 180° - 83° - 59° = 38°
By Sine rule,
AC/sinB = AB/sinC
Therefore AC = ABsinB/sinC
= 10.3sin59°/sin38°
= 14.34km.
The rainfall for the month of July was above average. The water level in a small lake measured 834 feet at the beginning of the month. Due to all the rainfall, the water level rose 35 of a foot per week for the first three weeks, then the lake dropped 12 foot in the last week of the month.
What was the water level of the lake at the end of July?
A
979ft.
B
101120ft.
C
10120ft.
D
71120ft.
Answers
Answer:
927 ft so A
Step-by-step explanation:
Answer:
Step-by-step explanation:
9 7/9
Will give crown help
Answers
Answer:-8,-2,4,10
Step-by-step explanation:
2
5) y=-=x+1
3
3
A)
2
B)
دTF درا
3
C)
2
D)
3
2
Can someone pleaseee pass the answers pleaseee
Answers
Answer:
5) option c
6) option d
7) option d
8) option b
The equation y = 3.5 x − 210 y=3.5x−210 represents the profit made by a manufacturer that sells products for $3.50 each, where y is the profit and x is the number of units sold. what is the profit in dollars when 80 units are sold?
Answers
Answer:
the answer is c
Step-by-step explanation:
took the test
for a coordinate proof concerning an isosceles triangle, which coordinates might be easiest to use?
Answers
Answer:
(0,0) , (a,b) , (2a,2b) is the answer
Step-by-step explanation:
for a triangle to be isosceles, then two sides must be equal
To picture this, if we have a point at the origin, with coordinate (0,0); we can have the coordinates of the other points being the same so as to make the distance from the origin the same
Then from here, we can get that the length of the two sides are equal
From what we have, option 4 can be correct
This is because , finding the distance between two points is;
D = √(x2-x1)^2 + (y2-y1)^2
From what we have
The distance between (0,0) and (a,b) will give same answer for the distance between (a,b) and (2a,2b)
true or false im dumb sorry
Answers
Answer:
False
Step-by-step explanation:
Tell me if you need an explanation
Answer:
it's false.
4×4×4= 64.
BASED ON THE GRAPH, WHICH STATEMENT IS CORRECT?
Answers
Answer:
i would go for a but im not really sure. sorry if incorrect
Step-by-step explanation:
Estimate and then solve 8,784 ÷ 61 = ___. answers: 133 134 143 144 I WILL MARK U BRAINLEIST IF ITS RIGHT
Answers
Answer:
The answer is 144
Step-by-step explanation:
Answer:
Ummm...
8,784/61=
144, D ??Describe and correct the error in finding the intercepts.
Example:
The intercept is not at (8, 2) because... Instead, it
should be...
Answers
Answer:
The x=8 is only for the x interecept, and the x-intercept is (8,0). You assume y to be 0 then you say it's 2, that is incorrect. x and y interecepts should not be combined. The correct x-intercept and y-intercept are (8,0) and (0,2) respectively