PLEASE HELP!! WORTH 20 points. AND WILL NAME BRAINLIEST. IF BLURRY JUST ZOOM IN!! IF YOUR NOT GONNA ANSWER WITH A REASONABLE ANSWER THEN DONT COMMENT.
Answers
Answer:
These methods convert everything to radians
Step-by-step explanation:
Length of arc DC fromula is radius*angle in radians
Radius of the circle of DC is 8 cm aka the outer circle.
The angle inside is 130 degrees, in radians convert and multiply by 180/[tex]\pi[/tex]
givong 130 degrees to be 13/18π
using formula, arc DC is 8*13/18π
=52/9π (in terms of pi) or 18.15 cm
or 130/360*(2π8)=18.15 (not using radians)
Length of arc QT regards the inner circle of radius 4 cm. Convert 130 degrees to radians. Using same formula as above, length of arc =4*13/18π
=26/9π or 9.08 cm
or 130/360*(2π4)=9.08 (not using radians)
Area of sector DEC suspended angle is 130 degrees of 13/18π radians. regarding large outer circle radius 8 cm.
Use formula 0.5*r^2*angle in radians fro area of sector gives:
0.5*8^2*13/18π
=208/9π or 72.61 cm^2
or 130/360*(π8^2)=72.61 (not using radians)
The area of sector QET angle 13/18πv rad and radius 4 cm using same forumla as above gives
0.5*13/18π*4^2
=52/9π or 18.15cm^2
or 130/360*(π4^2)=18.15 (not using radians)
Radian measure of angle DEC is 130 degrees again convert to radians by multiplying by π/180 gives
=13/18π
Radian measure of angle QET IS ALSO 130 degrees also
=13/18π
Related Questions
Use synthetic division to find the result when 3x^3-19x^2-12x-14 is divided by x−7.
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Answer:
your look hard what grade you in
Step-by-step explanation:
PLS HELP!! find area of the shape round to the nearest tenth
Answers
Given:
A regular pentagon with side 14 units and apothem 9.6 units.
To find:
The area round to the nearest tenth.
Solution:
Area of a regular polygon is:
[tex]A=\dfrac{1}{2}Pa[/tex] ...(i)
Where, P is the perimeter and a is the apothem.
The given figure is a regular pentagon with five sides. So, the perimeter of the given figure is the product of number of sides and the side length.
[tex]P=5\times 14[/tex]
[tex]P=70[/tex]
Putting [tex]P=70,a=9.6[/tex], we get
[tex]A=\dfrac{1}{2}(70)(9.6)[/tex]
[tex]A=(35)(9.6)[/tex]
[tex]A=336[/tex]
Therefore, the area of the regular polygon is 336.0 square units.
someone help!! A rectangular prism has a base 3 cm by 4 cm and is 5 cm in height what is the surface area of the rectangular prism
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Simplify (9x - 3) - (7x -4)
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Answer:
2x+1
Step-by-step explanation:
[tex](9x-3)-(7x-4)[/tex]
[tex]9x-3-7x+4[/tex]
[tex]2x+1[/tex]
What is 442.1 × 11 =
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Answer: 4,863.1
Step-by-step explanation:
please help with this question i need help now will give brainliest
Answers
Answer:
1. 432/625
2. C=3/4
Step-by-step explanation: Hope this help :D
Write the algebraic expression for “twice a number n decreased by seven”
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Answer:
2n - 7
Step-by-step explanation:
twice a number n is 2 times N
decreased by 7 means 2n - 7
hope that helped!!
Answer:
2x-7 or y= 2x-7
PLS HELP no bots ;(((
Enter the coordinates of the point on the unit circle at the given angle.
300 degrees
(1/_, -_/2)
Answers
Answer:
1/2 -3/2
Step-by-step explanation:
2. Which number line shows all the values of y that make the inequality -b0 points - 2 (greater than or equal to) 10 true?
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Answer:
b
Step-by-step explanation:
b
Please SHOW WORK, will mark brainlist if correct
Answers
Answer:
[tex]\huge\boxed{\sf \frac{x+3}{x-3}}[/tex]
Step-by-step explanation:
[tex]\displaystyle = \frac{x+7}{x^2+4x-21} \div \frac{x+5}{x^2+8x+15} \\\\Apply \ mid-term \ break\\\\= \frac{x+7}{x^2 +7x-3x-21} \div \frac{x+5}{x^2 +3x+5x+15} \\\\= \frac{x+7}{x(x+7)-3(x+7)} \div \frac{x+5}{x(x+3)+5(x+3)} \\\\Taking \ (x+3) \ and \ (x+7) \ common\\\\= \frac{x+7}{(x-3)(x+7)} \div \frac{x+5}{(x+3)(x+5)} \\\\= \frac{1}{x-3} \div \frac{1}{x+3} \\\\= \frac{1}{x-3} * (x+3)\\\\= \frac{x+3}{x-3} \\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Simplify
(√3 + 2)²
OA. 7
OB. 483
OC. 4 +7√3
OD. 7+4v3
O E. 1173
Answers
Answer: C
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
Exact Form:7+4√3
Decimal Form:
13.92820323
Hope This Helps!
Can I have some help I’ll mark you brainliest
Answers
Answer:
Perdón
Step-by-step explanation:
o siento pero tengo que hacer una pregunta urgente de algo que tengo que entregar ahora.
Write 5.11x10^3 in standard form
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Answer:
[tex]5.11 \times {10}^{3} \\ = 5.11 \times 1000 \\ = 5110[/tex]
Answer:
5110
Step-by-step explanation:
In order to solve this, we need to know what a "power" in math is, and then we just do the following...
[tex](5.11)(10^{3}) = (5.11)(1000) = 5110[/tex]
I’m tired and I just want to get this done. I’ve gotten too many wrong so far. Pls help!
Answers
Answer:
the first option is correct: t(n) = 125([tex]\frac{1}{5}[/tex])ⁿ
Step-by-step explanation:
3x + y = 14
y = 5
Solve the system of equations
Answers
Answer:
X=3, y=5
Step-by-step explanation:
3x + y = 14 equation 1
y=5 equation 2
3x + 5 = 14. substitute value of y from equation 2 into equation 1
3x=9
x-3
If two points known on the line AB in the coordinate plane is (7,15) and (18,42), calculate the following..
A) the slope of the line AB
B) The length of the line AB
Answers
Answer:
Slope = 27/11AB = 29.15 uStep-by-step explanation:
Given :-
Two points are given to us .The points are A(7,15) and B(18,42)To Find :-
The slope of the line .The length of line AB .We can find the slope of the line passing through the points [tex]( x_1,y_1)[/tex] and [tex]( x_2,y_2)[/tex]as ,
[tex]\implies m = \dfrac{ y_2-y_1}{x_2-x_{1}}[/tex]
Plug in the respective values ,[tex]\implies m = \dfrac{ 42-15}{18-7} \\\\\implies \boxed{ m = \dfrac{ 27}{11 }}[/tex]
Hence the slope of the line is 27/11 .
[tex]\rule{200}2[/tex]
Finding the length of AB :-
We can find the distance between them by using the Distance Formula .[tex]\implies Distance =\sqrt{ (x_2-x_1)^2+(y_2-y_1)^2} \\\\\implies Distance =\sqrt{ (18-7)^2+(42-15)^2 } \\\\\implies Distance =\sqrt{ 11^2 + 27^2 } \\\\\implies Distance =\sqrt{ 121 + 729 } \\\\\implies Distance = \sqrt{ 850} \\\\\implies \boxed{ Distance = 29.15 \ units }[/tex]
Hence the length of AB is 29.15 units .
if my grade is a 77& and I get a 40% on a test what will my grade be?
Answers
Answer:
It really all depends on how much percent of your grade the test is worth. If your current average is 77%, and the test is worth 30-100% of your grade, then the 77% will likely become 75% or even 73%.
Step-by-step explanation:
It all just depends.
PLEASEEE HELPPP MEEE!!! ♥️
Answers
what percent of 240$ is 12$
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Answer:
I think its 5%
12/240=0.05
0.05=5%
Sorry if its wrong I haven't studied about percentages yet in school
Answer:
5%
Step-by-step explanation:
12/240=0.05
which is 5 percent so 12/240=0.05=5%
which table represents the best function?
Answers
Answer:
2nd
Step-by-step explanation:
Answer:
It would be the 4th one! It has a constant difference
My question is y=3x+5
what the answer ? anyone know??
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explaining; You need to get the x by itself. So you would subtract the 3 from the five and get 2.
Now you have y= 3•2 + 5
Which means 6 + 5 = 11
if r = 1 and θ = 7pi/6 what is the approximate arc length?
Answers
Step-by-step explanation:
arc length = radius * angle(in radians)
arc length = 1*7pi/6
arc length =7pi/6
Answer:
3.665 units
Step-by-step explanation:
it was right
plz help, photo above
Answers
Answer:
D
Step-by-step explanation:
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
please answer this question!????!?!?!
Answers
Answer:
I believe its b and c
Step-by-step explanation:
Answer:
B. and D.
Step-by-step explanation:
To get the distance you must subtract Han's house from Lin's house since her house is closer. D. works as well because it is the inverse operation of B.
Elsa, Keith, and Lamar sent a total of 68 text messages during the weekend. Keith sent 8 more messages than Elsa. Lamar sent 2 times as many messages as Elsa. How many messages did they each send?
Answers
Answer:
Elsa sent 15, Lamar sent 30, and Keith sent 23
Step-by-step explanation:
If x=Elsa, L=Lamar, and K=Keith
2x=L
x+8=K
x+x+8+2x= 68
4x+8=68
4x=60
x=15
Then you plug 15 into x, and solve for each person.
(15)2=L
(15)+8=K
Find an equivalent ratio in simplest terms: 15 : 27
Answers
When u convert it into a fracture, the simplified version would be 5/9
Answer: 5/9
Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-2, 2)A(−2,2)A, left parenthesis, minus, 2, comma, 2, right parenthesis, B(6, 2)B(6,2)B, left parenthesis, 6, comma, 2, right parenthesis, C(6, 3)C(6,3)C, left parenthesis, 6, comma, 3, right parenthesis, and D(-2, 3)D(−2,3)D, left parenthesis, minus, 2, comma, 3, right parenthesis.
What is the area of rectangle ABCDABCDA, B, C, D? Please Help
Answers
Answer:
Step-by-step explanation:
The rectangle ABCD has vertices A(-2,2), B(6,2), C(6,3) and D(-2,3).
Now, length of side AB = [6 - (- 2)] = 8 units.
{Since the line AB is parallel to the x-axis, so the length of the segment AB will be the difference between the x-coordinates of the points A and B}
Again, line BC is parallel to y-axis and hence the length BC = (3 - 2) = 1 units.
Therefore, the area of the rectangle ABCD will be (8 × 1) = 8 sq. units. (Answer)
Answer:
8 Square Units
Step-by-step explanation:
whoever completes this hard question will be marked as the brainliest person
At what time Ali left home?
●9 pm
●12 noon
●10 am
●2 pm
How many times did he take rest? *
● 1
● 2
● 3
● 4
What is the distance Ali travelled till 5 pm? *
● 80 km
● 60 km
● 40 km
● 20 km
What is the total distance Ali travelled during his whole journey? *
● 40 km
● 80 km
● 120 km
● 160 km
When did Ali return home? *
● 12 noon
● 2 pm
● 9 pm
● 5 pm
Calculate the speed of Ali while returning home *
● 26.67 km/hr
● 30 km/hr
● 80 km/hr
● 56.27 km/hr
Answers
Answer:
he left home at 10 am
he rested two times
he travled 80 km
he travled 160 km total
he returned home at 9 pm
he was traveling at 26.67 km/hr while returning home
HELP PLS HELP ILL MARK YOU BRAINLEST
a) 12°, 78°
b) 18°, 72°
c) 15°, 165
d) 36°, 144°
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Janet walks 950 metres every day. Determine what distance would Janet walk in an entire week. Express your answer in kilometres. (Remember to show your work
Answers
Answer:
6.65 kilometers
Step-by-step explanation:
950 * 7 days a week = 6650 meters
6650 meters / 1000 (conversion to kilometers) = 6.65 kilometers
Answer:
6.65 km
Step-by-step explanation:
Let's solve this in a set of fraction forms. Since 1 day is 950 meters, 1 week will be converted to days to be on equal grounds. 1 week = 7 days. Therefore, let us set up a fraction; Let "x" be the variable
[tex]\frac{950}{1}=\frac{x}{7}[/tex]
Step 1: Switch sides
[tex]\frac{x}{7}=\frac{950}{1}[/tex]
Step 2: Apply rule [tex]\frac{a}{1}=a[/tex]
[tex]\frac{x}{7}=950[/tex]
Step 3: Multiply both sides by 7
[tex]\frac{7x}{7}=950\cdot \:7[/tex]
Step 4: Simplify
[tex]x=6650[/tex]
Expressed: [tex]\frac{6650 meters}{1000}[/tex] (convertion to kilometers) = 6.65 kilometers
Therefore, Janet would walk 6.65 km in an entire week