Answer:
Area of semicircle is
[tex] \frac{1}{2} (\pi \times {r}^{2} )[/tex]
If you are helped with my answer pls tag me brianliest I really want it
THANK YOU......
Answer:
To calculate the area of a semicircle
We are gonna have to use the formula :
[tex]\frac{1}{2}[/tex] π r² [ that is the formula to calculate the area of a semicircle ]
Step-by-step explanation:
If we want to calculate the radius of a semicircle with 4 ft --
we would first write the formula which is "[tex]\frac{1}{2}[/tex] π r²"
Then, you would write: [tex]\frac{1}{2}[/tex] π (4 ft)²
After that, you would write: [tex]\frac{1}{2}[/tex] (3.14)(16)
Type that into a calculator and you would get 25.12 as your answer
--
Why did we write 3.14 and 16? [ [tex]\frac{1}{2}[/tex] (3.14)(16) ]
Bc, the first digits of pi are 3.14 .
We wrote 16 because 4² = 16 [ 4x4=16 ]
My explanation isn't that good so I would suggest watching the math antics video which is named "Circles, Circumference And Area"
Which data set has a greater median?
Answer:
Student A
Step-by-step explanation:
Student a median: 33
Student b median: 32
student a
the median is the value separating the higher half from the lower half of a data sample, a population, or a probability distribution
100 students are interviewed to see which of biology, chemistry or physics they prefer.
72 of the students are girls. 34 of the girls like biology best.
11 of the boys prefer physics.
24 out of the 27 who prefer chemistry are girls.
What percentage of the students prefer biology?
Answer:
62%
Step-by-step explanation:
34 girls like biology
? boys like biology
It is 34%≤
27% Prefer chemistry
11% prefer physics
27 + 11 = 38
100 - 38 = 62
let me know if i'm wrong
If a boat travled 70miles in 5 hours how far did the boat travel in one hour
Answer:
350millas
Step-by-step explanation:
Evaluate the expression 9 + 8 − 2 x 4.
B 11
C 13
D 16
A 9
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{9 + 8 - 2 }\times\large\text{ 4}\\\large\text{9 + 8 = \bf 17}\\\large\text{17 - 2 }\times\large\text{ 4}\\\large\text{2 }\times\large\text{ 4 = \bf 8}\\\large\text{17 - 8 }\\\large\text{\bf = 9}[/tex]
[tex]\boxed{\boxed{\large\textsf{Answer: \huge \bf D. 9}}}\huge\checkmark[/tex]
[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
A shelf is built on a wall, as shown below. What is the value of x?
Answer:
Step-by-step explanation:
Given:
A shelf is built on a wall. The angles of the triangle are given as (x + 3)°, (2x - 18)° and 90°
We need to determine the value of x.
Value of x:
By triangle sum property, the angles in a triangle always add up to 180°
Thus, we have;
Simplifying, we get;
Subtracting both sides by 75, we get;
Dividing both sides of the equation by 3, we get;
Thus, the value of x is 35.
What is the length of the missing side, x? Bottom line in the first picture
Answer:
51
Step-by-step explanation:
Total triangle 180 degree
Missing side = 180-74-55
identify the type of polygon presented by each of the following figures. write your answer on sheet paper math
Norfolk island near Australia has an area of 36 square kilometers .The area of Bermuda is 1.8 times that of Norfolk island. To the nearest tenth what is the area of Bermuda
Answer:64.8km squared
Step-by-step explanation: 36 x 1.8 = 64.8
What are the dimensions of the rectangle shown on the coordinate plane? On a coordinate plane, a rectangle has points (1, negative 1), (10, negative 1), (10, negative 5), (1, negative 5). The base is 3 units and the height is 9 units. The base is 9 units and the height is 4 units. The base is 10 units and the height is 4 units. The base is 11 units and the height is 6 units. HURRRY 20 POINTS AND MORE IF RIGHT
Answer:
The base is 9 units and the height is 4 units.
Step-by-step explanation:
we have BD is 17 cm AB is 24cm find angle of B
<2 and <6 can be classified as:
A. same-side interior angles
B. corresponding angles
C. alternate exterior angles
D. alternate interior angles
Answer:
b corresponding angles
i need actually help on this asap!
Answer:
Step-by-step explanation:
x = -1: 2(3)^(-1) = 2(1/3) = 2/3
x = 0: 2(3)^0 = 2(1) = 2
x = 1: 2(3)^1 = 6
x = 2 2(3)^2 = 18
The speed with which utility companies can resolve problems is very important. GTC, the Georgetown TelephoneCompany, reports they can resolve customer problems the same day they are reported in 70 percent of the cases.Suppose the 15 cases reported today are representative of all complaints. a) What is the probability 10 of the problems can be resolved today? b) What is the probability 9 or 12 of the problems can be resolved today? c) What is the probability more than 10 of the problems can be resolved today?
Answer:
a) [tex]P(10)=0.2061[/tex]
b) [tex]P(9\ or\ 12)=0.3172[/tex]
c) [tex]P(X>10)=0.51545[/tex]
Step-by-step explanation:
From the question we are told that:
Probability of Same day resolution [tex]P=70\%=>0.7[/tex]
Probability of Another day resolution [tex]Q=1-P=>30%=>0.3[/tex]
Sample size [tex]n=15[/tex]
a)
Generally the equation for Probability 10 of the problems can be resolved today is mathematically given by
Since
[tex]P(X)=^{n}C_{x}*p^{x}*Q^{n-x}[/tex]
[tex]P(10)=^{15}C_{10}*p^{10}*Q^{15-10}[/tex]
[tex]P(10)=\frac{15!}{10!(15-10)!*0.70^{10}*0.30^5}[/tex]
[tex]P(10)=0.2061[/tex]
b)
Generally the equation for Probability 9 or 12 of the problems can be resolved today is mathematically given by
[tex]P(9)=\frac{15!}{9!(15-9)!*0.70^{9}*0.30^6}[/tex]
[tex]P(9)=5005*2.942*10^{-5}[/tex]
[tex]P(9)=0.1472[/tex]
OR
[tex]P(12)=\frac{15!}{12!(15-12)!*0.70^{12}*0.30^3}[/tex]
[tex]P(12)=455*3.737*10^{-4}[/tex]
[tex]P(12)=0.17[/tex]
Therefore Probability 9 or 12 of the problems can be resolved today is
[tex]P(9\ or\ 12)=P(9)+P(12)[/tex]
[tex]P(9\ or\ 12)=0.1472+0.17[/tex]
[tex]P(9\ or\ 12)=0.3172[/tex]
c)Generally the equation for probability more than 10 of the problems can be resolved today is mathematically given by
[tex]P(X>10)=P(11)+P(12)+P(13)+P(15)[/tex]
Where
[tex]P(11)=\frac{15!}{11!(15-11)!*0.70^{11}*0.30^4}[/tex]
[tex]P(11)=0.2186[/tex]
[tex]P(13)=\frac{15!}{13!(15-13)!*0.70^{13}*0.30^2}[/tex]
[tex]P(13)=0.0916[/tex]
[tex]P(14)=\frac{15!}{14!(15-14)!*0.70^{14}*0.30^1}[/tex]
[tex]P(14)=0.0305[/tex]
[tex]P(15)=\frac{15!}{15!(15-15)!*0.70^{15}*0.30^0}[/tex]
[tex]P(15)=0.00475[/tex]
Therefore
[tex]P(X>10)=0.2186+0.0916+0.0305+0.00475+0.17[/tex]
[tex]P(X>10)=0.51545[/tex]
A farmer sells 8.5 kilograms of apples and pears at the farmer's market. 3 5 of this weight is apples, and the rest is pears. How many kilograms of pears did she sell at the farmer's market?
Answer:
I think 49 im not sure
Step-by-step explanation:
dont trust me I not good with math
Matt has 11 white buttons. He has 9 fewer brown buttons than white buttons. Matt has 17 more grey buttons than brown buttons. How many buttons does Matt have in all?
Answer: 32 buttons
Step-by-step explanation:
Matt has 11 white buttons.
Matt has 9 fewer brown buttons than white buttons. This means he has (11 -9) = 2 brown buttons
Matt has 17 more grey buttons than brown buttons. This means that he has (2 + 17) = 19 grey buttons.
The total number of buttons that Matt has will be;
= 11 white + 2 brown + 19 grey
= 32 buttons
1/3 x 1/4 = ?????????
Answer:
1/12
Step-by-step explanation:
1/4 X 1/3 = 1/12
Answer:
1/12
Step-by-step explanation:
When multiplying fractions, you multiply it like normal numbers, so 1 is multiplied by 1, and 3 is multiplied by 4.
For example:
3/4 x 9/10 would be equal to 27/40 because the 3 is multiplied by 9 and 4 is multiplied by 10.
3 x 9 = 27
4 x 10 40
27/40
Therefore on your question it would be 1/12.
Point M is the midpoint of segment AB. If the coordinates of A are (−3, 6) and the coordinates of M are (−5, 2), what are the coordinates of B?
Answer:
Point M is the midpoint of AB. If the coordinate of A are (-3,6) and the coordinates of M are (-5,2), what are the coordinates of B?
Step-by-step explanation:
A factory has a container filled with 35,874 litres of cold drink. In how many bottles of 21 L capacity each can it be filled ? How much drink will be left behind?
Answer:
Number of bottles= 1,708
Step-by-step explanation:
Giving the following information:
Total liters= 35,874 litres
Bottle capacity= 21 liters
To calculate the number of bottles that can be filled given the actual capacity, we need to use the following formula:
Number of bottles= total liters / cottle capacity
Number of bottles= 35,874 / 21
Number of bottles= 1,708
two parallel lines are cut by a transversal. what is the measure of angle 8
Answer:
A
Step-by-step explanation:
∠4 and ∠8 are corresponding angles
corresponding angles are congruent ( equal to each other )
so if ∠4 = 100° then ∠8 also equals 100°
Answer:
A
Step-by-step explanation:
8 is equal to 4(100) because it is corresponding angle, corresponding angle are equal to each other...If 4 is 100 then 8 will be 100
Given that mCD=20°, find mBC
Answer:
70°
Step-by-step explanation:
[tex] m\widehat {BC} = 90\degree - m\widehat {CD} [/tex]
[tex] m\widehat {BC} = 90\degree -20\degree [/tex]
[tex] m\widehat {BC} = 70\degree [/tex]
Solve for X in 3x/10 + x/5 = 15 SHOW WORK
Answer:
x = 30
Step-by-step explanation:
correct me if i am wrong but i think you have to
a.) change the denominator's to be the same :
ten is a common denominator therefore you times the second expression by two ( x/5 becomes 2x/10 )
b.) put the formula back together :
3x/10 + 2x/10 = 15
5x/10 = 15
5x = 150
x = 30
LOOK AT THE PICTURE PLZ NEED HELP!
Answer:
J
Step-by-step explanation:
Sorry I'm very busy so no step by step
A pants is marked down from $25 to $19. What is the percent of
change?
Answer:
19/25 = x/100
Cross multiply:
1,900
Divide 1,900 by 25
Equals 76
Subtract 76 from 100
Answer: 24% change
hope this helps
have a good day :)
Step-by-step explanation:
A total of 120 smoothies were sold on the first day of the month from July-December. True or false
Answer:
the answer would basically be 720 smoothies in total from Jul.-Dec.
Step-by-step explanation:
YWW :)
Ms. Nguyen gave each Student 3 pencils at The beginning of the year. She passed out 90 pencils. How many students did she have in her class?
Answer:
30
Step-by-step explanation:
90 divided by 3 = 30
If the interior angle sum of a regular polygon is 5, 940 degrees, how many sides does it have?
An apple, potato, and onion all taste the same if you eat them with your nose plugged
a company packages stickers in sets of 40. if each set costs $80.85, what is the cost of 240 stickers?
Answer:
485.10
Step-by-step explanation:
Of the 10 kids in a chess club, 5 are left-handed and 5 are right-handed. The club holds a round-robin tournament in which every player plays against every other player exactly once. Of all the matches, how many of them have a left-handed player competing against a right-handed player?
The total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 fraction of all games at the tournament Anita plays the game.
We have given that,
Of the 10 kids in a chess club, 5 are left-handed and 5 are right-handed.
What are permutation and combination?A permutation can be defined as the number of ways a set can be arranged, order matters but in combination, the order does not matter.
We have 5 girls and 5 boys in a chess club:
There are a total of 5×5 games girls play against a boy.
= 5×5
= 25
The number of games a girl play against another.
It is a combination problem so the total number of games:
= 10
A fraction of the games are boy-versus-boy:
The number games boy-versus-boy = 10
The number games Boy vs Boy & Girl vs Girl & Boy vs Girl
= 10+10+25
= 45
So the fraction = 10/45 ⇒ 2/9
If Anita is one of the club members then Anita will have to play against 9 people at the tournament.
Total number of games = 45
Then the fraction = 9/45 ⇒ 1/5
Thus, the total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 fraction of all games at the tournament Anita play the game.
To learn more about combination visit:
brainly.com/question/4546043
#SPJ2
True or false help me
Answer:
A. 4/12, C. 1/3
Step-by-step explanation:
2/6 can be divided by 3. Therefore, the fraction is 1/3.
A. 4/12 can be divided by 4. This means the fraction will be 1/3. Because 1/3 is equal to 1/3, this option is correct.
B. 1/2 cannot be simplified. Because 1/3 is not equal to 1/2, this option is not correct.
C. 1/3 cannot be simplified. Because 1/3 is equal to 1/3, this option is correct.
D. 3/8 cannot be simplified. Because 3/8 is not equal to 1/3, this option is not correct.
If this helps please mark as brainliest
Simplify: (-2x - 3) – (3x2 – 8x + 9). Choose the standard form of the answer.
A. -3x2 - 6x – 12
B. -3x2 - 9x + 12
C. -3x2 + 6x – 12
D. -3x2 - 6x + 12
Answer:
C
Step-by-step explanation:
Given
(- 2x - 3) - (3x² - 8x + 9) ← distribute parenthesis
= - 2x - 3 - 3x² + 8x - 9 ← collect like terms
= - 3x² + 6x - 12 → C