What is the area of a circular pizza with a radius of 9 cm?
O A. 1017.9 cm?
O B. 56.5 cm2
O C. 254.5 cm
O D. 28.3 cm2
someone helpp plss
Answers
Answer:
Step-by-step explanation:
C
The area of the circular shaped pizza is A = 254.5 cm²
What is a Circle?A circle is a closed figure in which the set of all the points in the plane is equidistant from a given point called “center”. Every line that passes through the circle forms the line of reflection symmetry. Also, the circle has rotational symmetry around the center for every angle
The circumference of circle = 2πr
The area of the circle = πr²
where r is the radius of the circle
The standard form of a circle is
( x - h )² + ( y - k )² = r²,
where r is the radius of the circle and (h,k) is the center of the circle.
The equation of circle is ( x - h )² + ( y - k )² = r²
For a unit circle , the radius r = 1
x² + y² = r² be equation (1)
Now , for a unit circle , the terminal side of angle θ is ( cos θ , sin θ )
Given data ,
Let the radius of the pizza be r = 9 cm
The area A of a circle with radius r is given by the formula:
A = πr²
Substituting the given radius of 9 cm, we get:
A = π(9 cm)²
A = π(81 cm²)
A ≈ 254.47 cm²
Rounding to one decimal place, we get:
A ≈ 254.5 cm²
Hence , the area of the circular pizza with a radius of 9 cm is approximately 254.5 cm²
To learn more about circle click :
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Answer:
6/5
Step-by-step explanation:
-3/5-(-2/15)+5/6
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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YOULL GET BRAINLEST JUST ANSWER THIS CORRECTLY!!!
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Answer:
area of circle=π[tex]r^{2}[/tex]
452.1=3.14[tex]r^{2}[/tex]
452.1/3.14=[tex]r^{2}[/tex]
143.98=[tex]r^{2}[/tex]
[tex]\sqrt{143.98}[/tex]=r
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Step-by-step explanation:
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Answer:
20.78
Step-by-step explanation:
sin a = perpendicular/ hypotenuse
where a is the base angle
here a = 60
sin 60 = 18/ x
since,
[tex] \sin(60) = \ \frac{ \sqrt{3} }{2}[/tex]
[tex] \frac{ \sqrt{3} }{2} = \frac{18}{x} [/tex]
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x = 36/ √3
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x = 20.78
John deposited $2,100 into his bank account. The bank will pay 1.5% interest compounded annually on his account. He plans on leaving his money in there with no additional deposit for 5 years. Which formula would you use to determine how much money he has after 5 years?
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In the morning, the temperature was – 10°C. By the afternoon, it had risen to – 2°C. What was the change in temperature from the morning to the afternoon?
Answers
Answer:
8 °C
Step-by-step explanation:
Step 1: Given data
Initial temperature value (T1): -10 °C
Final temperature value (T2): -2 °C
Step 2: Calculate the change in temperature from the morning to the afternoon
To calculate the change in the temperature, we have to perform the subtraction T2 - T1.
ΔT = T2 - T1 = (-2 °C) - (-10 °C) = -2 °C + 10 °C = 8 °C
The temperature change is positive, meaning that the temperature increased.
GRADE 8 MAIN
SESSION 2 /
Glenn bought a game system and 3 video games for $375. Jim bought a game system and 4 video
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Enter your answer in the box.
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Answer:
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
First, draw the diagram.
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Then, we have:
tan angle=opposite/adjacent
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l=1.732*50m
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Answer:
148 i think i’m not sure
Step-by-step explanation:
Answer:
Hello! answer: b = 24
Step-by-step explanation:
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I NEED THIS ANSWER After simplifying, which expressions are equivalent? Select three options.
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Answer:
1, 3, 5 are correct
Step-by-step explanation:
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2. (2.5a + 1.6b) + (3.4a + 4b) = 5.9a + 5.6b
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Answer:
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the object symbolizes something else
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Answers
Answer:
i think the answer is B
Step-by-step explanation:
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_________________________________
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Step-by-step explanation:
67,68,69,69,69,71,71,72,73,75
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Answer:
2
Step-by-step explanation:
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Hi there!
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Answers
Answer:
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Step-by-step explanation:
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If you like my answer and explanation, mark me as brainliest!
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I’m pretty sure it’s this
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Perimeter of the yellow shape:
27m
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then to find the 2 other sides you need to
7.2-4.9=2.3
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4+y/4y
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6.25
Step-by-step explanation:
4+3 ÷ 4×3 = 6.25
or
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Answer:
i believe the answer would be -1 and 6
Answer:
Coordinates are (5,0) & (7,0)
Just refer to the point where the graph intersects the x-axis I think.
9. For the function defined by the equation y = 2x^2 -10, which of the following represents the
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(1) 6
(3) -10
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Answers
Answer:
8
Step-by-step explanation:
y = 2x^2 -10
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y = 2( -3)^2 -10
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y = 8
I need a answer for this
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Answer:
6
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
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a^2 + 8^2 = 10^2
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a^2 = 100-64
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Take the square root of each side
sqrt(a^2) = sqrt(36)
a = 6
mary walked 2.1 hours along part of the trans canada trail at a speed of 3.6 km. what distance did mary travel
Answers
Answer:
7.66 km
Step-by-step explanation:
2.1x3.6=
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Answers
Let the cost price of article be x :
x + x × ( 15/100 ) = 2300
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x + x × ( 3 / 20 ) = 2300
x + ( 3 × x / 20 ) = 2300
x + ( 3x / 20 ) = 2300
( 20x / 20 ) + ( 3x / 20 ) = 2300
20x + 3x / 20 = 2300
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( 23x / 20 ) × 20 = 2300 × 20
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When she was born, Tabitha’s rich aunt put $10,000 in a bank account in Tabitha’s name to be saved for her college education. The account earns 6% annual interest.
Martin's family opened an account when he was born. They started by putting $15,000
in this account and then his family added $50 a month, which is $600 per year to his
account. The account did not earn interest over time.
a. Make a table showing the value of each account of each year for 5 years. Round
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the missing entries.
Answers
Answer:
Step-by-step explanation:
If the length of qr is 8 cm and the length of qs is 12 cm, what is the length of rs?
Answers
Answer:
8.94
Step-by-step explanation:
Given that
qs = 12cm
qr = 8cm
Required
rs
Using the pythagoras theorem
Let us assume qs is the hypotenuse side
qs² = qr² + rs²
12² = 8² + rs²
144 = 64 +rs²
rs² = 144 - 64
rs² = 80
rs = √80
rs = 8.94
Hence the value of rs is 8.94