Answer:0.82
Step-by-step explanation:
The first step is to determine the areas of the inner and the bigger circles.
The formula for determining the area of a circle is expressed as
Area = πr²
Where
r represents the radius of the circle.
π is a constant whose value is 3.14
Considering the inner circle,
diameter = 148.4 cm
Radius = 3 inches
Area = 3.14 × 3² = 28.26 inches²
Considering the bigger circle,
Radius = 7 inches
Area = 3.14 × 7² = 153.86 inches²
The area between the bigger and inner circles is
153.86 - 28.26 = 125.6 inches²
Probability = number of favourable outcome/number of total outcome.
the probability you land inside the bigger circle but outside smaller circle is
125.6/153.86 = 0.82
Q10.
ABC is a right-angled triangle.
А
11 cm
B
7 cm
C
(a) Work out the size of angle ABC.
Give your answer correct to 1 decimal place.
Answer:
[tex]B = 50.5^\circ[/tex]
Step-by-step explanation:
Given
[tex]AB = 11[/tex]
[tex]BC = 7[/tex]
See attachment
Required
Determine [tex]\angle ABC[/tex]
[tex]\angle ABC[/tex] implies that we calculate the angle at B.
Given that:
[tex]AB = 11[/tex] --- Hypotenuse
[tex]BC = 7[/tex] --- Adjacent of B
We apply cosine formula
[tex]\cos(B) = \frac{Adjacent}{Hypotenuse}[/tex]
[tex]\cos(B) = \frac{BC}{AB}[/tex]
[tex]\cos(B) = \frac{7}{11}[/tex]
[tex]\cos(B) = 0.6364[/tex]
Take arccos of both sides
[tex]B = cos^{-1}(0.6364)[/tex]
[tex]B = 50.5^\circ[/tex]
Solve the inequality. Graph the solution.
Answer:
Don't see it. Sorry.
Step-by-step explanation:
What is the center of the circle shown below? A.J B. 7.8 C. K D.JK
Answer:
J
Step-by-step explanation:
J is the center of the circle
If you flip a coin 15 times and it lands on heads every time, what is the probability of the coin landing on heads on
the next flip?
Answer:
Its depends on theoretical and experimental
Step-by-step explanation:
The experimental you have flipped it 15 times and got heads every time, so you have an experimental of 15/15 of heads, but theoretical is a 1/2, or 50/50, a 50% chance of getting heads or tails.
Describe how you would determine whether a triangle is a right triangle given its coordinates.
A. You could find out whether the slopes of any two sides have a product of −1. B. You could find out whether any two sides have the same slope. C. You could find out whether one side is parallel to an axis, or perpendicular to an axis. D. You could find out whether one side has a slope of 0, and another side has a slope of either 1 or −1.
Answer:
uhhhh
Step-by-step explanation:
A
Whoever answers correctly without adding NO FILES OR LINKS gets brainliest
Answer:
C. 6.75n = 114.75
Step-by-step explanation:
The store collects $114.75, each magazine is 6.75, the number of magazines is shown by n.
Answer: The answer is A.
It is A because you have to divide the total by the cost to find out the amount of magazines purchased.
Four students ran for the position of school president. Use the following results to figure out who won. Jenna received 22% of the votes. Jordan received of the votes. Kelsey received 6 out of every 20 votes. Nathan received of the votes. The winner was A Jenna B Jordan C Kelsey D Nathan
Answer:
A Jenna
Step-by-step explanation:
Because if Jenna received 22% votes and Jordan, Kelsey, Nathan received less 20 percentage that means Jenna won for school president.
At a certain time of day, the sun shines on a large flagpole causing a shadow that is twice as long as the flagpole is tall what is the height of the flagpole to the nearest tenth of a foot?
350ft
Answer:
156.5
Step-by-step explanation:
The height of the flagpole to the nearest tenth of a foot is 156.5 ft.
Word Problems Using Pythagoras Theorem:Word Problems involving the use of the Pythagoras theorem need careful understanding to discern the complexity of the variables given, the using the Pythagoras theorem to solve the eqaution.
The Pythagoras Theorem states that the sum of the squares of the opposite side and the adjacent side is equal to the hypotenuse square.
From the information;
The large flagpole height = adjacent = xThe shadow of the flagpole = opposite = 2xThe hypotenuse = 350 ftUsing the Pythagoras theorem, we have;
hyp² = opp² + adj²
350² = (2x)² + x²
350² = 4x² + x²
122500 = 5x²
x² = 122500/5
x² = 24500
x = √24500
x = 156.5 ft
Therefore, we can conclude that the height of the flagpole is approximately 156.5 ft.
Learn more about word problems here:
https://brainly.com/question/13818690
HELP PLEASE NO LINKSSS
Answer:
Step-by-step explanation:
multiply the botom olf the pick by the side of the pink and then add all the side of the blue
PLEASE ANWSER QUICK PLS PLS
Answer:
D. m/_ 4 is 137
Step-by-step explanation:
If you add 137 and 43 you get 180 which is the line's angle.
How many lines of symmetry does a kite have
0
1
3
2
Answer:
1 i think hope this can help you with your problem
Answer:
1
Step-by-step explanation:
(TUTORS WHERE R U?? KIDS NEED HELP LIKE ME!! ILL GIVE BRAINLYY)
Answer:
11. 10x^2 - 13x - 3
12. 5x^2 + 18x + 5
Step-by-step explanation:
11. Product means multiplication, so you can multiply (5x + 1) and (2x - 3).
[tex](5x + 1) * (2x - 3)[/tex] - Using the FOIL (First+Outer+Inner+Last)
So: [tex](5x*2x) + (5x*-3) + (1*2x) + (1*-3)\\10x^{2} -15x + 2x -3\\10x^{2} -13x -3[/tex]
12. [tex]3x^{2} + 8x - 1 + 2(x^{2} +5x + 3)[/tex] (So, you distribute the 2 to x^2 + 5x + 30, then combine like terms).
[tex]3x^{2} + 8x - 1 + 2(x^{2} +5x + 3)\\3x^{2} + 8x - 1 + 2x^{2} +10x + 6\\(3x^{2} +2x^{2}) + (8x + 10x) + (-1+6)\\5x^{2} + 18x + 5[/tex]
Hopefully, this helped you. Good luck & have a good day!
What is the domain in interval notation of the function graphed below? Note: As x is approaching -2, the graph is getting closer and closer to a line but not touching it.
Answer:
Step-by-step explanation:
x-values approach x = -2, but do not touch the vertical line x = -2. All other x-values are permitted. Thus, the domain is (-2, infinity).
Select all expressions that are equivalent to -4(x + 2) – 2x + 4.
a.
-6x – 4
b. 4x + 2 – 2x + 4
C.
- 10x
d. -4x + -8 - 2x + 4
e. -4X – 2x - 8 + 4
Answer:
A,D,E
Step-by-step explanation:
-4(x + 2) – 2x + 4
=-4x-8-2x+4 D
=4x-2x-8+4 E
=-6x-4 A
Hope it helps!
Math question :) please help
I know i may be unwanted here but I just want you to know that you are incredible and that I love you for you! You are special to everyone you meet, and should not change who you are. I know your life may be tough, but you are strong and can get through it!
You may report me as long as you know i ook the time out of my day to type this out for you
<3
One hundred nautical miles equals about 185 kilometers. To the nearest kilometer, how far in kilometers is 140 nautical miles?
25,900 km
185 km
76 km
259 km
Answer:
259 km
Step-by-step explanation:
Butterfly method 100/185=140/???
185*140=25900
divide by 100
=295
Write in slope-intercept form.
10 in.
10 in.
30 in.
20 in.
Find the area of the arrow above.
square inches
Enter
How to:
30 x 10 is half of how to find the triangle part which is 300 therefore the other half is also 300 to together it is 600. Now for the rectangle part, it's 10 by 20 which is 200. Therefore, we add the totals of both making the answer. But DONT forget the lables since all these mesurements are in square inches!!
Answer:
800 sq inches
PLEASE GIVE ME BRAINIEST IF I HELPED YOU!!! THANKS!!! ENJOY THE REST OF YOUR DAY/NIGHT!!!
weight of sheep,in pounds, at the Southdown sheep farm:
what is the range of weights of the sheep?
plz anwser asap I'm being timed
Answer: 170
Step-by-step explanation:
275-105
Find the area of the figure.
Answer:
89m ^2
Step-by-step explanation:
purple 8x13 = 104
triangle 1/2(5)(6) = 15
104-15 = 89
help please don’t know how to do this
Answer:
1. C,D
2. B,C,D
3. E
4.D
5.A,B,C,D
6.D
7.C,D
8.E
Step-by-step explanation:
Hope this helps ;)
PLEASE HELP ASAP!!!!!!!! 2+2
Answer:
4
Step-by-step explanation:
it's four imma just goo
Please answer this solve the proportion x/8 = 9/4 X=
[tex]\frac{x}{8}=\frac{9}{4} \\\\4x=72\\x=18\\[/tex]
hope this helps :)
If it is 78°F in Memphis and -14°F
in Junaeu, what is the temperature
difference between the two cities?
Answer:
There is a 92°F difference between the two cities.
Step-by-step explanation:
Since you are finding the difference of temperatures between the two cities, you need to subtract -14 from 78. It looks like 78-(-14). Since you are subtracting a negative number, the equation becomes 78+14. 78+14 is 92.
9. What is the correct factorization of
x2 + 13x + 30?
Answer:
(x+3)(x+10)
Step-by-step explanation:
sorry I don't know how I should explain it....
How many solutions does the system have? 2x+3y=-6 3x-4y=-12. A) exactly one solution b) no solution c) infinity many solutions
Answer:
a.
Step-by-step explanation:
by elimanation,cimparison or substitution you wull get the value of x=-60/17 and y=6/17
3 Simplity the following rotic's = 4:16
Answer:
1:4
Step-by-step explanation:
simply divided by 4 :)
Find the values of x
and y that make these triangles congruent by the HL Theorem.
X = 2, Y = 1
X = 3, y = 2
X=1, y = 2
X = 2, y = 3
9514 1404 393
Answer:
(b) x = 3, y = 2
Step-by-step explanation:
In order for the triangles to be congruent by the HL theorem, the hypotenuses must be congruent:
3y = x+3
and the corresponding legs must be congruent:
y +1 = x
__
We can solve this set of equations by substituting for x:
3y = (y +1) +3
2y = 4 . . . . . . . .subtract y
y = 2 . . . . . . . . .divide by 2
2+1 = x = 3 . . . substitute for y in the equation for x
The solution is (x, y) = (3, 2).
CAN SOMEONE HELP ME WITH THIS QUESTION PLEASE?!!!
Answer:
Cone or Cylinder, Sphere
Step-by-step explanation:
Answer: The surface area of a cone can be found by drawing a net and adding the area of all their respective two - diamasional surface. Use the formula 4πr2 to find the surface area of a Sphere where r is the radius of the figure.
Step-by-step explanation:
What is the area of the trapezoid below
Answer:
[tex]Area: 29 cm^{2}[/tex]
Step-by-step explanation:
[tex]Aear=(8.5+6)(\frac{4}{5} )[/tex]
[tex]Area=14.5 (2)[/tex]
[tex]Area=29[/tex]
----------------------
hope it helps...
have a great day!!
