Answers
Hello !
Answer:
[tex]\large\boxed{\sf Option\ 3 : 66cm}[/tex]
Step-by-step explanation:
The circumference of a circle is given by [tex]\sf C=2\times\pi\times r[/tex], where r is the radius.
Given :
d = 21 cmr = d/2 = 10.5 cmπ =3.14Let's replace r with its value in the previous formula :
[tex]\sf C=2\times 3.14\times 10.5[/tex]
[tex]\sf C=65.94[/tex]
[tex]\boxed{\sf C\approx 66cm}[/tex]
Have a nice day
Related Questions
I need help I don't know how to do this
Answers
Answer:
Step-by-step explanation:
(5)
A table cost $275. An LCD television set cost $325 more than the table.
Find the ratio of the cost of the LCD television set to the cost of the table.
Express the ratio in its simplest form.
Answers
Answer:
table cost=275
LCD television cost=325+275
= 600
[tex]ratio = \frac{600}{275} \\ = \frac{120}{55} \\ = \frac{24}{11} [/tex]
6. Kriti has a circular swimming pool in her house. The radius of the swimming
pool is22.5 cm. She walks one round every morning before diving in the pool.
How far does she walk around the pool every morning? *
70.65
141.3
35.33
282.6
Answers
Answer:
Total walk she did around the pool every morning = 141.3
Step-by-step explanation:
Given - Kriti has a circular swimming pool in her house. The radius of the swimming pool is 22.5 cm. She walks one round every morning before diving in the pool.
To find - How far does she walk around the pool every morning?
Proof -
Given that, the swimming pool is circular in shape.
So,
1 round of circle = Circumference of circle.
As we know that,
Circumference = [tex]2\pi r[/tex]
= [tex]2*\pi *22.5[/tex]
= 141.3
∴ we get
Total walk she did around the pool every morning = 141.3
A culture of bacteria has an initial population of 72000 bacteria and doubles every 10
hours. Using the formula P = Po - 2 å, where P is the population after t hours, Po
is the initial population, t is the time in hours and d is the doubling time, what is the
population of bacteria in the culture after 17 hours, to the nearest whole number?
Answers
Answer: 233928.6902 ≈ 233929
Step-by-step explanation:
Is the mean of 5 negative numbers positive or negative? explain
Answers
Answer: Always negative
Is 11 pronounced eleven or onety-one?? PLS HELP MOM WILL SMAK ME WITH A CLOCK AGAIN PLS HELP
Answers
Answer:
eleven if your normal
Step-by-step explanation:
Answer:
eleven
Step-by-step explanation:
Please help! Having trouble.
Answers
Answer:
B. 13
Step-by-step explanation:
Let's solve your equation step-by-step.
7√x−4−6=15
Step 1: Add 6 to both sides.
7√x−4−6+6=15+6
7√x−4=21
Step 2: Divide both sides by 7.
7√x−4
7
=
21
7
√x−4=3
Step 3: Solve Square Root.
√x−4=3
x−4=32(Square both sides)
x−4=9
x−4+4=9+4(Add 4 to both sides)
x=13
Answer:
x = 13
Step-by-step explanation:
[tex]7 \sqrt{x - 4} = 15 + 6 \\ 7 \sqrt{x - 4} = 21 \\ \sqrt{x - 4 =} = 3 \\ x - 4 = 9 \\ x = 13[/tex]
I need help pls!!! I have 4 minutes left to answer these
Answers
Answer:
its 3/5 so you just add the numerator to the numerator and add the denominator to the denominator.
Answer:
7/6 is the answer
Step-by-step explanation:
=(1/2+2/3)
taking L.C.M
= (3+4)/6
=7/6
I need help with this question? 2(t+1) =10
Answers
Answer:
Distribute
Subtract two from both sides of the equation
Simplify
and that's your solution
which should be t=4
Step-by-step explanation:
*name the solid that is formed from the net
(helllpp plsss!!!)
Answers
Answer:Cube
Step-by-step explanation:
possibly a cube
23, 69, 207 7th term
Answers
Answer:
16767
Step-by-step explanation:
Each new term is found by multiplying the previous term by 3. Thus, 3 is the common ratio. The formula for this geometric series is therefore
a(n) = 23*3^(n - 1).
The 7th term is a(7) = 23*3^6 = 16767
Enter the value of the exponential expression 5 to the power 0
Answers
Answer:
1
Step-by-step explanation:
5^0 = 1. Any base to the power 0 returns the value 1.
Which type of function best models the area of the garden as a function of the width?
Answers
Stevie can refinish a driveway in 4 hours. Ray can refinish the same driveway in 3 hours. Princess can refinish the same driveway in 2 hours. If all three work together, how long would it take them to refinish 5 driveways? Show all work
Answers
Answer: 45 because 4+3+2=9 and 9x5=45
surely help me with this question
Answers
Answer:
The area of the composite shape is:
122.50 [tex]cm^{2}[/tex]Step-by-step explanation:
To find the area of composite shapes you can pull apart this in known shapes, in this case, a rectangle and a triangle. Taking into account this, we can find the rectangle area firstly:
Rectangle area = base * heightThe base of the rectangle is the measure from down (14 cm) and the height is the measure in the left side (7 cm), with these values we can replace the formula:
Rectangle area = base * heightRectangle area = 14 cm * 7 cmRectangle area = 98 [tex]cm^{2}[/tex]Now, to calculate the area of the remaining triangle, we must use the next formula:
Triangle area = [tex]\frac{base*height}{2}[/tex]Where the base would be equal to the left side of the shape (7 cm) and the height is the difference between the measurement in the top side and the measurement in the bottom side:
Height of the triangle = top side - bottom sideHeight of the triangle = 21 cm - 14 cmHeight of the triangle = 7 cmWe can replace in the formula:
Triangle area = [tex]\frac{7 cm * 7cm}{2}[/tex]Triangle area =[tex]\frac{49cm^{2} }{2}[/tex]Triangle area = 24.5 [tex]cm^{2}[/tex]By last, we must add the two values of the areas obtained:
Area of the composite shape = rectangle area + triangle area.Area of the composite shape = 98 [tex]cm^{2}[/tex] + 24.5 [tex]cm^{2}[/tex]Area of the composite shape = 122.5 [tex]cm^{2}[/tex]Linear equation in slope intercept form
Answers
Answer:
y = 2x + 24
Step-by-step explanation:
Slope-intercept form equation => y = mx + b
m = slope = change in y / change in x
b = y-intercept
✔️using two pairs of values form the table, (-6, 12) and (-5, 14):
Slope (m) = (14 - 12)/(-5 -(-6))
m = 2/1
m = 2
✔️To find b, substitute (x, y) = (-6, 12) and m = 2 into y = mx + b.
12 = 2(-6) + b
12 = -12 + b
12 + 12 = b
24 = b
b = 24
✔️To write the equation, substitute m = 2 and b = 24 into y = mx + b:
y = 2x + 24
Estimate the solution of the system x+y=4 2x-y=6 by sketching a graph of each linear function. Then solve the system algebraically. Use your estimate to judge the reasonableness of your solution. The estimated solution is The algebraic solution is The solution is/is not reasonable because
Answers
Answer:
(10/3, 2/3)
Step-by-step explanation:
You may find it easier to write these two equations x+y=4 2x-y=6 in a column:
x+y=4
2x-y=6
Adding these together will eliminate y:
3x = 10. Then x = 10/3.
Substituting 10/3 for x in the first equation results in:
10/3 + y = 4
Clear fractions by multiplying all three terms by 3:
10 + 3y = 12
Then 3y = 2, and y = 2/3.
The solution is (10/3, 2/3)
-
A bakery takes three types of bread, with the monthly cost being RM 6850
for 2150 loaves of bread. The cost of baking a loof of butterscotch bread
is km 2 a chocolate bread km 3 and a coconut bread Rm 4. The sale prices
of a loaf of butterscotch bread a chocolate bread and a coconut bread
are km 3 , RM 4.50 and km s. so respectively - It the bakery makes a profit
RM 2975 monthly how many loaves of each type of bread will it bake)
Answers
Answer:
The bakery will bake 600 butterscotch bread, 550 chocolate bread, and 1,000 coconut bread
Step-by-step explanation:
In order to answer the word problem question, we list the parameters as follows;
The number of bread types the bakery takes = 3 types of bread
The monthly cost of the bakery for baking the bread, C = RM 6,850
The number of bread loaves baked = 2,150
The cost of baking a loaf of butterscotch bread = Rm 2
The cost of baking a loaf of chocolate bread = Rm 3
The cost of baking a loaf of coconut bread = Rm 4
The sale price of a butterscotch bread = Rm 3
The sale price of a chocolate bread = Rm 4.50
The sale price of a coconut bread = Rm 5
The amount of monthly profit the bakery makes, P = Rm 2,975
Therefore, the total revenue of the company, R = C + P
∴ R = Rm 6,850 + Rm 2,975 = Rm 9,825
Let 'x', 'y', and 'z', represent the number of loaves of butterscotch, chocolate, and coconut bread the company bakes respectively
Then we get;
x + y + z = 2,150...(1)
2·x + 3·y + 4·z = 6,850...(2)
3·x + 4.5·y + 5·z = 9,825...(3)
Multiplying equation (1) by 2 and subtracting from equation (2) gives;
2·x + 3·y + 4·z - 2×(x + y + z) = 6,850 - 2 × 2,150 = 2,550
2·x - 2·x + 3·y - 2·y + 4·z - 2·z = 2,550
∴ y + 2·z = 2,550...(4)
Adding equation (1) to (2) and subtracting from (3) gives;
3·x - 3·x + 4.5·y - 4·y + 5·z - 5·z = 9,825 - (6,850 + 2,150) = 825
1.5·y = 825
y = 825/1.5 = 550
The number of loaves of chocolate bread baked, y = 550
From equation (4), we get;
550 + 2·z = 2,550
2·z = 2,550 - 550 = 2,000
z = 2,000/2 = 1,000
The number of loaves of coconut bread baked, z = 1,000
∴ From equation (1) x = 2,150 - (550 + 1,000) = 600
The number of loaves of butterscotch bread baked, x = 600.
PLEASE HELP I NEED TO TURN THIS IN TODAY!!!!!!!!!
Answers
Answer:
ez
Step-by-step explanation:
and dont give brainliest
lel
Two frogs had a jumping contest. The heights they jumped are shown below.
Frog one jumped 70cm
Frog two jumped 850mm
What is the difference between the distances, in millimeters?
Answers
Answer: 150mm
Step-by-step explanation:
We should note that 10 millimeter = 1 centimeter. Therefore, 70cm to mm will be:
= 70 × 10 = 700mm
Frog one jumped 70cm = 700mm
Frog two jumped 850mm
The difference between the distance will be:.
= 850mm - 700mm
= 150mm
A triangle has one angle of 120 degrees what must be true about the other two angles A- the sum of the two angles must be equal to 120 degrees. B- the two angles must be the same measure C- the sum of two angles must be 60 degrees
Answers
Answer:
C
Step-by-step explanation:
Since all triangles' angles have a sum of 180 degrees, it can't be A, because that would make it 240 degrees. That leaves us with B and C. While B could be true, we don't know it for sure. Therefore, C is the correct answer because adding them should equal 60 degrees, which, adding them to the first angle (which was 120 degrees), would 180 degrees.
PLEASE HELP with question 7! BRAINLIEST to correct answer!!!!
Answers
Answer: rasie 13 to 3/4
Step-by-step explanation:
right answer = gets brainliest
Answers
Answer:
4. 12c(3a^5b - 1)
Step-by-step explanation:
Greatest common factor of 36 and 12: 12
There are variables a^5b on left term but not on right term, so there is no common factor of a or b.
Greatest common factor of c and c: c
Common factor: 12c
36a^5bc / 12c = 3a^5b
-12c / 12c = -1
Answer: 36a^5bc - 12c = 12c(3a^5b - 1)
AYO HELP ME OUT! PLEASE ONLY FULL ANSWERS <3
Answers
Answer:
x=32°
Step-by-step explanation:
ABC+BCA+CDE=180
Substitute
61+57+2x=180
118+2x=180
2x=62
x=32
Will give extra points if you get it right <3
Add or subtract the given polynomials. Be sure to show all steps
(9x2 + 3x – 5) + (8x2 – x + 2)
Answers
Answer:
17x² + 2x – 3
Step-by-step explanation:
(9x2 + 3x – 5) + (8x2 – x + 2) →
(9x² + 3x – 5) + (8x² – x + 2) →
[Group like terms]
(9x² + 8x²) + (3x – x) + (2 – 5) →
[Simplify]
17x² + 2x – 3
Complete the question
Answers
Answer:
$625 on groceries
Step-by-step explanation:
The number is 25%, which is 1/4 of $2,500, so we need to find 1/4 of 2,500
2500/4=625
That is how you solve it using division.
Hope this helps!
please help me I really need help.... the equation I wrote for part A is p=2b
Answers
Answer:
independent: b
dependent: p
Step-by-step explanation:
p = 2b
To find p, choose values for b, then do the calculation.
b is independent. You can choose any value for it.
p is dependent since its value depends on the value you chose for b.
A sculptor plans to ship the pyramid shown in one of three boxes. The interior of the pyramid holds 4,500 cm3 of water. The base is an isosceles trapezoid. Into which boxes will the pyramid fit? Drag “yes” or “no” to each box height.
Answers
Answer:
28 cm and 32 cmStep-by-step explanation:
Volume of the pyramid:
V = 1/3BhFind base area:
B = 1/2(20 + 30)*20 = 500 cm²Substitute value of the volume and find the height of the pyramid:
4500 = 1/3*500*hh = 4500*3/500h = 27 cmThe boxes with h > 27 can fit the pyramid:
28 cm and 32 cmArea of base
1/2(30+20)(20)10(50)500cm²Volume=1/3Area×Height
Height
4500(3)(500)27cmSo answers are
boxes of 28cm and 32cn
calculate:
(−26−5×5)−(4)×(−2)+(−3)
−(8−22)÷(−3×5)
and thankyouu alottt
Answers
Answer:
-46.9333333
Step-by-step explanation:
(−26−5×5)−(4)×(−2)+(−3)
−(8−22)÷(−3×5)
What are the steps to solving the inequality 3b + 8 2 14?
O Subtract 8 from both sides of the inequality. Divide both sides of the inequality by 3.
O Subtract 8 from both sides of the inequality. Change the direction of the inequality. Divide both sides of the
inequality by 3.
O Divide both sides of the inequality by 3. Subtract 8 from both sides of the inequality.
O Divide both sides of the inequality by 3. Change the direction of the inequality. Subtract 8 from both sides of the
inequality.
Answers
Answer:
Subtract 8 from both sides of the inequality. Divide both sides of the inequality by 3.
Step-by-step explain
The given inequality is 3b + 8 ≥ 14
We need to solve the given inequality
Step 1.
Subtract 8 to the both sides of the inequality
3b + 8 - 8 ≥ 14 -8
3b ≥ 6
Dividing both sides by 3
b ≥ 2
The value of b is greater than and equal to 2.
the correct answer is a.