Answer:
Probability that he was taught by using method A is 14/17
Step-by-step explanation:
Following probabilities are given -
P (F|A) = 0.2
P (F|B) = 0.1
P (A) = 0.7
P (B) = 0.3
Now, P(A|F) = { P (F|A)* P(A)}/{{ P (F|A)* P(A)} + P (F|B)* P(B)}}
P(A|F) = (0.2*0.7)/( (0.2*0.7)+(0.1*0.3)) = 14/17
What is the approximate area of the shaded sector ?
Answer:
7.5 cm²
Step-by-step explanation:
Area of shaded sector = θ/360 × πr²
Where,
θ = 180° - 84° = 96°
r = ½(6) = 3 cm
Area of shaded sector = 96/360 × π × 3²
Area = 7.53982238 ≈ 7.5 cm²
A 2-ft wide circular track for a camera dolly is set up for a movie scene. The two rails of the track form concentric circles. The radius of the inner circle is 74 ft. How much farther does a wheel on the outer travel than a wheel on the inner rail of the track in one turn ?
Answer:
As we know the formula for "Circumference of circle": Since we have also mentioned that there is 2 feet wide circular track for a camera dolly. Therefore, A wheel on the outer rail travel 12.57 ft more than a wheel on the inner rail of the track.
Step-by-step explanation:
i hope it helped
Which sequence is modeled by the graph below? (6 points)
Answer:
Step-by-step explanation:
evaluate 13+(43÷2)×5−17 .
Answer:
103.5
Step-by-step explanation:
13 + (43 ÷ 2) × 5 - 17
13 + 21.5 × 5 - 17
13 + 107.5 - 17
107.5 - 4
103.5
Please help me with my math
Answer:
47.5 yd²
Step-by-step explanation:
Area = 1/2 ( base x height )
Area = 1/2 ( 19 x 5 )
Area = 1/2 ( 95 )
Area = 47.5 yd²
Find the area of a parallelogram with vertices (-7, 2), (6, 2), (6, -5), and (-7, -5). Use the coordinate grid below to help you find your answer.
Answer:91
Step-by-step explanation:
What is the length of side 'y'?
Answer:
B
Step-by-step explanation:
Answer with steps please i have 1 mark on this with steps
Ahamd wants to cover a box that is 6 cm long 4 cm high and 4 cm wide with material on all the sides how much material does he need
Answer:
56cm²
Explanation:
the amount of material he needs would be the total surface area of the box. surface area can be calculated by finding the sum of surface area of all the sides of the box. since the opposite sides are equal, we can find the surface area of 3 different sides and then multiply it by 2.
(4 + 4) + (4 + 6) + (6 + 4) × 2
= 8 + 10 + 10 × 2
= 28 × 2
= 56cm²
i hope this helps! :D
What are the solution(s) to the quadratic equation 40 - x2 = 0?
O x = +2/10
O x = +4/10
O x = +2/5
x = +4V5
Answer:
±2sqrt(10)
Step-by-step explanation:
40 - x^2 = 0
Add x^2 to each side
40 -x^2 + x^2 = x^2
40 =x^2
Take the square root of each side
±sqrt(40) =sqrt(x^2)
±sqrt(4)sqrt(10) =x
±2sqrt(10) =x
Find the circumference of the circle to the nearest tenth.
C
6 cm
I assume the radius is 6 cm.
Diameter = 2 times the radius.
D = 12 cm.
We now use C = pi•D.
C = pi•12cm
C = 12pi cm
Done!
This is relative frequency tables. Can someone help ?
Answer:
87 is the answer
Hope it helps!!!
Step-by-step explanation:
In which choice do all three points lie on the same straight line?
A. (0, 1), (-1, 3), (1, 3)
B. (4, 2), (2, 1), (4, -2)
C. (0, 0), (8, 0), (0, 8)
D. (1, 2), (2, 4), (4, 8)
Will give brainlst
Have a nice day
Answer:
7/2
Step-by-step explanation:
[tex]12x=4(x+2)+20\implies\\12x=4x+8+20\implies\\12x=4x+28\implies\\8x=28\implies\\x=28/8=7/2[/tex]
[tex]y=8x+12[/tex]
Answer:
14/4 , y = 8x + 12
Step-by-step explanation:
12x = 4x + 28
x= 14/4
.
y = ax+b
a is the slope
b is the y intercept
Find the quadratic root of 3 x² - 4x + 2
Answer:
it has no real roots.
and the 2nd answer is correct.
Step-by-step explanation:
Answer:
this quadratic equation has two roots:
x = (2+i√(2))/3 , (2-i√(2))/3
Steps:
3x²-4x+2=0
x = (4±√((-4)²-4×3×2))/2×3
x = (4±√(16-24))/6
x = (4±√(-8))/6
x = (4±√(-2×4))/6
x = (4±√(-2)×√(4))/6
x = (4±i√(2)×2)/6
x = (2±i√(2))/3
x = (2+i√(2))/3 , (2-i√(2))/3
Find the slope of the line.
Answer:
3/3 or 1
Step-by-step explanation:
Remember the slope of the line is y/x
You can either count the distance going from point 1 to point 2 or
subtract (4-1)/(4-1)= 3/3
I NEED HELP ASAP PLS HELP!
You: 3, 6, 9, 12
Friend: 4, 8, 12, 16
Your friend sells 16 tickets.
Answer:
you is 5 and friend is 12 and 16 your friend sells 16 tickets
Step-by-step explanation:
lliana is painting a picture. She has green, red, yellow, purple, orange, and blue paint. She wants her painting to
have four different colors.
If order does not matter, in how many ways can she pick four colors if green must be one of them?
4
6
10
15
O
Answer:
6 is correct
So Iliana has 6 ways to pick for colors, if green is not one of them. :)
What's the perimeter of rectangle DEFG, shown?
O A) 28
B) 34
C) 40
OD) 17
Dylan is creating clay at home for an art project. The recipe calls for 6 cups of water and 5.5 cups of flour. Dylan would like to make more clay than the recipe calls for and so he puts 44 cups of flour in the bowl instead. How many cups of water should he use?
Answer:
48 cups of water
Step-by-step explanation:
Using the provided ratio of 6:5.5...
if 6:5.5
then
48:44
o
Which statement is not true?
1. ET is perpendicular to plane BAD.
2. ET is perpendicular to plane FAB.
3. ET is perpendicular to plane CAD.
4. ET is perpendicular to plane BAT.
Answer:
4.) ET is perpendicular to plane BAT
Step-by-step explanation:
"Fifty-seven more than two times j"
Answer:
2j+57
Step-by-step explanation:
Two times a umber j is expressed as 2j
if Fifty-seven is more than two times j", this means we will have to add 57 to 2j as shown;
f(j) = 2j + 57
Hence the statement written as a function is expressed as 2j+57
What is the value of x?
Answer:
The value of x=12
Step-by-step explanation:
because the whole thing is 90 and the other angles are equal to 78 if you add them together. So you would subtract 90-78 which equals 12.
Please help me! This is due tomorrow and I really need some help! Thank you.
Answer:
A
Step-by-step explanation:
3.5 x 1 x 1.4 = 4.9
Answer:
A. 4.9ft³
Step-by-step explanation:
V= LxWXH
V= 3.5x1.4x1= 4.9
V= 4.9ft³
explain C = 15 + 0.6Yd
what is 150 divided by 625 step by step
Answer:
150 dived by 625 is 0.24 I'm not sure how to explain it
Given the third term of an arithmetic sequence less than the fourth term by three. The seventh term
is two times the fifth term. Find the common difference and the first term.
Answer:
The first term is -6 and common difference is 3
Step-by-step explanation:
The nth term of an arithmetic progression is expressed as;
Tn = a + (n-1)d
T3 = a+2d
T4 = a + 3d
If the third term of an arithmetic sequence less than the fourth term by three
T3 = T4 - 3
a+2d = a+3d - 3
2d - 3d = -3
-d = -3
d = 3
Similarly;
T7 = a+6d
T5 = a+4d
If the seventh term is two times the fifth term, the;
T7 = 2T5
a+6d = 2(a+4d)
a+6d = 2a+8d
Since d = 3
a + 6(3) = 2a + 8(3)
a+18 = 2a + 24
a-2a = 24 - 18
-a = 6
a = -6
Hence the first term is -6 and common difference is 3
w + what - s = w
help plz help helppp i want help
Answer: S
Step-by-step explanation:
w + ? - s = w
w + s - s = w
w = w
the co-terminal angle of -120°
Answer:
-480°, 240° (among others)
Step-by-step explanation:
± 360
Plot points on the number line to represent all whole numbers that round to 200 to the nearest hundred and 250 when rounded to the nearest ten.
Answer:
To round a number to the nearest hundred, you make it into the hundred that is closest. Take the number 246, for example, which is between 200 and 300. It is closer to 200. So 246 rounded to the nearest hundred is 200.
please help me I will give a brainlist
Answer:
I think this is helpful .