Question Progress
Homework Progress
13/20 Marks
師
80%
Work out the circumference of this circle.
Take it to be 3.142 and give your answer to 1 decimal place.
9m
Answers
Answer:
C = 28.278 m
Step-by-step explanation:
The attached figure shows a circle whose diameter is 9 m.
Radius = Diameter/2
r = 9/2 = 4.5 m
The circumferance of the circle is given by :
C = 2πr
Put r = 4.5 m in the above formula
C = 2 × 3.142 × 4.5
= 28.278 m
So, the circumference of this circle is 28.278 m.
Related Questions
Eduardo solved the following inequality, and his work is shown below:
−5(x + 4) ≥ 4x − 38
−5x − 20 ≥ 4x − 38
−9x − 20 ≥ −38
−9x ≥ −18
x ≥ 2
What mistake did Eduardo make in solving the inequality?
a.When dividing by −9, he did not change the direction of the sign.
b.He subtracted 4x from both sides when he should have added.
c.He added 20 to both sides when he should have subtracted.
d.He did not make a mistake.
Answers
Answer:
It's Option D
Step-by-step explanation:
All of Eduardo's steps are justified.
Answer:
D
Step-by-step explanation:
During his lunch break, Leon sent 6 texts in 3/4
of a minute. What was his rate of texting?
Answers
Answer:
His rate was 8 text per minute... Please brainliest?
Answer: 8
Step-by-step explanation: trust me
You flip a coin 100 times in the air and find that it lands on heads 65 times. Determine the theoretical and experimental probability of landing on heads. In your final answer, include all of your calculations.
Answers
Answer:
The experimental probability --> [tex]\frac{13}{20}[/tex]
The theoretical probability --> [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Key skills needed: Experimental vs theoretical probability, Fractions
1) The first thing you need to understand is experimental probability vs theoretical probability. (Do not include this in your work!!)
- Theoretical probability is based on simple reasoning
- Experimental probability is based on the results a person gets (so the experiment you did by flipping the coin)
2) Now with this, let's start solving:
Experimental probability ---> [tex]\frac{heads}{total}[/tex] --> You flipped the coin a total of 100 times, so the denominator would be 100. 65 of those would be heads so 65 is our numerator. So our experimental probability is --> [tex]\frac{65}{100}[/tex] --> Both have the factor of 5, so take the factor of 5 out of the numerator and denominator and you will get --> [tex]\frac{13}{20}[/tex] Now onto theoretical probability --> [tex]\frac{heads}{total}[/tex] --> There are 2 faces of a coin, 1 side is heads, and 1 side is tails --> The total number of faces is 2, so 2 is our denominator. There is only 1 side that is heads, so 1 is the numerator. This means --> Our theoretical probability is [tex]\frac{1}{2}[/tex]Hope you understood and have a nice day!! :D
Answer:
Experimental Probability: 65/100 We tested the probability 100 times, 65 of those times being heads. So %65 is our experimental probability (in percentage form) of flipping a coin and landing on heads. Simplified, 13/20 is our fraction.
Theoretical Probability: 50/100 or 1/2. There are two sides to a coin, and one is heads, so the theoretical probability is 1/2. In percentage form, the probability would be %50, or 50/100.
Complete the following statement.
- 18+ (-4)=
omg pleaseee what is ittt
Answers
Answer:
-22
Step-by-step explanation:
Answer:
The answer is -22
Step-by-step explanation:
I will only give points if you give me a long answer (not THAT long.). Now, what is 100 x 300. Make sure to give a long answer but not that long. So enjoy your day.
Answers
Answer:
100×300=3000
Step-by-step explanation:
hope the picture attached helps
A car moves at a constant speed of 50 miles per hour. How many hours does it take the car to go 200 miles?
Answers
Answer:
4 hoursStep-by-step explanation:
Speed = 50 mphDistance = 200 milesUse formula:
distance = time x speedtime = distance / speedFind the value:
Time = 200 / 50 = 4 hoursms salinas is packing lunches for a field trip. She is placing 15 sack lunches in each of 3 ice chests. Each sack lunch contains a sandwich, an apple, and a bag of potato chips. 40% of the sandwhiches an turkey sandwiches. How many of the sack lunches contain a turkey sandwhich
Answers
Answer:18
Step-by-step explanation:
Because 40% of 45 is 18
Determine the sum of the areas of the three triangles shown above.
Answers
I will be there at the same time I don't hear
2. What is the minimum value of of the function below
y = 2x2 – 8x + 11
O y=-3
O y = 2
O y = 3
O y = 11
Answers
What is the minimum value of of the function below y = 2x2 – 8x + 11 O y=-3 O y = 2 O y = 3 O y = 11
Will Mark Brainleist If you are correct!!!
If f(x)=9−4|x+1|, find f(−5).
A)−15
B)−7
C)7
D)23
Answers
Answer:
B) -7
Step-by-step explanation:
9-4|(-5)+1|
9-4|-4|
9-4(4)
9-16= -7
I hope this helps!
what is 11.35 divided by 0.35?
Answers
Answer:
32.43 (rounded)
Step-by-step explanation:
Answer:
32.4285714
Step-by-step explanation:
11.35/0.35=32.4285714
This is the answer however if your question has asked to round it to two decimal places the answer would be 32.43
i hope this helps
Renee calculated 3/6 plus 2/4 and said the answer equaled 5/10. Amanda solved the same problem and said the answer equaled one whole. Whose answer is more reasonable?
Answers
Answer:
Amanda's
Step-by-step explanation:
Given :
3/6 + 2/4
The L. C. M of 6 and 4 = 12
(6 + 6) / 12
12 / 12
= 1
Renne's result = 5/10
Amanda's result = 1 whole
Hence, Amanda's result makes more sense.
solve the system of equations
-3y+4x=13
-5y-6x=-67
Answers
Answer:
{x,y} = {67/16,-15/4}
Step-by-step explanation:
// Solve equation [2] for the variable y
[2] 2y = -8x + 26
[2] y = -4x + 13
// Plug this in for variable y in equation [1]
[1] 4x + 5•(-4x+13) = -2
[1] -16x = -67
// Solve equation [1] for the variable x
[1] 16x = 67
[1] x = 67/16
// By now we know this much :
x = 67/16
y = -4x+13
// Use the x value to solve for y
y = -4(67/16)+13 = -15/4
Find the value of A in each cases:
- cosA=√3/2
Answers
Answer:
A = [tex]\frac{5\pi }{6}[/tex]
Step-by-step explanation:
Given that Cos A = [tex]-\frac{\sqrt{3} }{2}[/tex]
cos A = [tex]cos (\pi -\frac{\pi }{6} )[/tex]
A = [tex]\pi - \frac{\pi }{6}[/tex]
A = [tex]\frac{5\pi }{6}[/tex]
4. What is the area triangle WXZ?
Answers
sole the inequality and graph your solution 125x + 200 1200
Answers
Answer:
x= 8
Step-by-step explanation:
HELPPppp!!! uhhhhhhhh......
Answers
Given:
The triangle PQR on a coordinate plane.
To find:
The image of point Q after a rotation of 90° counterclockwise about the origin.
Solution:
From the given graph, it is clear that the coordinates of point Q are (5,0).
If the figure is rotated 90° counterclockwise about the origin, then the rule of rotation is defined as
[tex](x,y)\to (-y,x)[/tex]
Using this rule, we get
[tex]Q(5,0)\to Q'(-(0),5)[/tex]
[tex]Q(5,0)\to Q'(0,5)[/tex]
So, the image of point Q is (0,5).
Therefore, the correct option is (a).
1) Solve: – 4x – 11 = 7
Pls help
Answers
Answer:
x = -9/2
Step-by-step explanation:
-4x - 11 = 7
-4x = 7 + 11
-4x = 18
x = -18/4
x = -9/2
simplify the following
[tex]\sqrt{98][/tex]
[tex]\sqrt{16 b^{5} }[/tex]
[tex]3\sqrt{5m} x 4\sqrt{\frac{1}{5} m3}[/tex]
[tex]\sqrt{26x2}[/tex]
Answers
Step-by-step explanation:
Simplify:
[tex]\sqrt{98} = \sqrt{49*2} = \sqrt{7^2*2} = 7\sqrt{2}[/tex][tex]\sqrt{16b^5} = \sqrt{4^2(b^2)^2b} = 4b^2\sqrt{b}[/tex][tex]3\sqrt{5mx^4} \sqrt{1/5m^3} = 3\sqrt{5*1/5*m^4x^4} = 3\sqrt{(m^2)^2(x^2)^2} = 3m^2x^2[/tex][tex]\sqrt{26x^2} = x\sqrt{26}[/tex]Answer:
[tex]→ \sqrt{98} = \sqrt{7 \times 7 \times2} = 7 \sqrt{2}✓ [/tex]
[tex]→ \sqrt{ 16{b}^{5} }= \sqrt{4 \times 4 \times {b}^{5} } = 4 {b}^{ \frac{5}{2} } ✓[/tex]
[tex]→3 \sqrt{5 mx^{4} } \sqrt{ \frac{1}{5} {m}^{3}} = 3 \sqrt{5 \times \frac{1}{5} {m}^{4} {x}^{4} } = 3 {m}^{2} {x}^{2} ✓[/tex]
[tex] →\sqrt{26 {x}^{2} } = \sqrt{26} x✓[/tex]
Simplify expression 2i(4.5-20i)3i
Answers
Answer:
-27+120i
Step-by-step explanation:
that is the answer
Calculate the slope represented by the table.
Answers
Answer:
y=2x-3
Step-by-step explanation:
I hope that helped
Diana buys a shirt for $14 plus and
pays 8% tax. Eddie buys pants for $25
plus and pays an 8% tax. Enter the
difference in the amount Diana and
Eddie paid, including the tax. Round
your answer to the nearest cent.
Answers
Shonda has $125. She spends 35% of the money she has on a concert ticket. How much did Shonda spend on the ticket?
Answers
Answer:
she spent $43.75
Step-by-step explanation:
you basically need 35% of $125
cool trick with this is "of" always means multiplication
35% x 125= 43.75
she spent $43.75
Shonda spent the amount of $43.75 on the concert ticket.
What is the percentage?The percentage is defined as a ratio expressed as a fraction of 100.
To find out how much Shonda spent on the concert ticket, we can use the following proportion:
(35%) × 125 = x/1
where x is the amount of money spent on the concert ticket, and we know that 35/100 (or 0.35) is 35% of 125.
Convert percent into decimal form and solve for x:
(0.35) × 125 = x
Apply the multiplication operation, and we get
x = 43.475
Therefore, she spent $43.75 on the concert ticket.
Learn more about percentages here:
brainly.com/question/24159063
#SPJ2
(-11/6) + m = -2/9
help me pls
Answers
Answer:
M= 29/18
Step-by-step explanation:
Which expression is equivalent to the given expression?
(-6ab)2
Answers
Answer:
B. 36a^2b^2
Step-by-step explanation:
1. Apply exponent rule: (-a)^n = a^n, if n is even
(-6ab)^2 = (6ab)^2
(6ab)^2
2. Apply exponent rule: (a × b)^n = a^nb^n
(6ab)^2 = 6^2a^2b^2
6^2a^2b^2
3. 6^2 = 36
36a^2b^2
In other words, your answer is B.
The answer is Option B)
What are like and unlike terms in an expression?In Algebra, the like terms are defined as the terms that contain the same variable which is raised to the same power. In algebraic like terms, only the numerical coefficients can vary. We can combine the like terms to simplify the algebraic expressions.
Given here: (-6ab)²=36a²b²
Hence, The answer is Option B)
Learn more about like and unlike terms here:
https://brainly.com/question/29078851
#SPJ2
4/5x + 7 =10 what's the value of x
Answers
x=15/4
13. Blake Brown demonstrates cookware at the National Food Fair. He is paid $7.00 each for the first 10 demonstrations in one day and $8.50 for each
demonstration over 10. What is his commission if Blake makes 12 demonstrations in one day?
Answers
Anna saved $30 each month from babysitting for 2.75 years. She spent 75% of her savings on a computer.
How much money did Anna have left?
Answers
Answer:
45.00 is what she has left
Step-by-step explanation:
Anna has $275.5 left after buying computer.
What is the percentage?A percentage is a minimum number or ratio that is measured by a fraction of 100.
Given that Amount saved by Anna each month = $30
Time period = 2.75 years.
1 year = 12 months
2.75 years = 2.75 years x 12 = 33 months
The Amount saved in 33 months = 33 x 30 = $990
She spent 75% of her savings.
Amount spent = 75% of 990
Amount spent = 75% x 990
Amount spent = $742.5
Amount left = Savings - Amount spent
Amount left = 990- 742.5= $275.5
Hecne, Anna has $275.5 left after buying computer.
Learn more about percentages;
brainly.com/question/24159063
#SPJ2
i don't know how this works
Answers
2.put in the amount of points the question will be worth
3.people answer the question for points
4.the more points you have the higher your rank
5.The higher your rank, the more credible your answer is
h(t)=- 16t^2 +16t+12 zeros of the parabola
Answers
Step-by-step explanation:
h(t) = -16t² + 16t + 12
h(t) = -4(4t² - 4t - 3)
h(t) = -4(2t - 3)(2t + 1)
When h(t) = 0, we have t = 1.5 or t = -0.5.
Hence the zeroes are 1.5 and -0.5.