Answer: The percent of red lights last between 2.5 and 3.5 minutes = 95.44% approx.
Step-by-step explanation:
Given: Mean time = 3 minutes
standard deviation = 0.25 minutes
The probability of red lights last between 2.5 and 3.5 minutes :-
[tex]P(2.5<x<3.5)\\\\=P(\dfrac{2.5-3}{0.25}<\dfrac{x-\mu}{\sigma}<\dfrac{3.5-3}{0.25})\\\\=P(-2<z<2)\\\\=2P(Z<2)-1\\\\=2(0.9772)-1\\\\=0.9544[/tex]
The percent of red lights last between 2.5 and 3.5 minutes = 95.44% approx.
A circle is shown. 4 radii are drawn. Chords are drawn to connect the radii points on the circle to form 2 triangles. The triangles have base lengths of 6 centimeters and the other 2 sides have lengths of 5 centimeters. The distance between the base of the triangle to the outline of the circle is 1 centimeter. Everything around the triangles is shaded.
What is the area of the shaded region?
Answer:
The Area of the Shaded Region: C. (25π – 24) cm^2
Step-by-step explanation:
Just took the Unit Test on Edg (2020-2021)!!
Will mark brainliest. Add 2√2+ 5√3 and √2 – 3√3.
Answer:
3√2 + 2√3
Step-by-step explanation:
2√2 + 5√3 + (√2 - 3√3)
(2√2 + √2 ) + (5√3 - 3√3)
(2+1) √2 + (5-3) √3
3√2 + 2√3
The answer is 7.70674230227
Find the volume of the cylinder . Round to the nearest tenth. r = 5 cm 5 cm V=[?]cm^ 3
Answer:
V = 392.70 cm³
Step-by-step explanation:
Volume of a cylinder = πr²h
V = 22/7 * 5² * 5
V = 392.70 cm³
Answer: Acellus uses 3.14 for pi, so 5^2*5*3.14 is 392.5
Step-by-step explanation: 392.5
what is 3040-17+6987x987654
Reat me 1-10
Answer:
6900741521
u cool
i guess
imma guy so...imma say u look 6/10
Step-by-step explanation:
In a bag of jellybeans there are 6 purple jellybeans, 5 blue jellybeans, 3 yellow jellybeans, 2 green jellybeans, and 4 red jellybeans. One jellybean is selected at random. What is the probability of selecting a jellybean that is not green?
Group of answer choices
2/20
1/9
1/10
9/10
Answer:
9/10
Step-by-step explanation:
There are 20 and 2 green 20-2 is 18 so 18/20 simplified is also 9/10
Answer:
9/10
Step-by-step explanation:
hope it helps
LEARNING TASK 3:
Directions: Given that b ∥ c with d as
transversal. Find the value of x in the
following.
1. ∠4 = 5x, ∠5 = 120°
2. ∠1 = 100°, ∠7 = 10x
3. ∠2 = 3x - 10, ∠6= x + 30
4. ∠4 = 3x + 10, ∠6= 2x + 20
5. ∠1 = 7x + 9, ∠5 = 5x + 31
Plssss I need this now
Step-by-step explanation:
1. Angle 5 = 120 degree
Angle 5 = Angle 6 ( alternate exterior angles are equal )
Therfore, Angle 6 = 120 degree
Angle 6 = Angle 4 ( Vertically opposite angles are equal )
Therfore, Angle 4 = 120 degree
Angle 4 = 5x
120 = 5x
120/5 = x
40 = x
Therefore x = 40 degree.
2. Angle 1 = 100 degree
Angle 1 = Angle 7 ( vertically opposite angles are equal )
Therefore, Angle 7 = 100 degree
Angle 7 = 10x
100 = 10x
100/10 = x
10 = x
Therefore x = 10 degree
I want some more time for this question.
Someone help me out please?
What is the factorization of the trinomial below?
3x^3 + 6x^2- 24x
Answer:
D
Step-by-step explanation:
kkkkkkkkkkkkkkkkkkk
What is the solution to the following system of equations? 3x-4y=-35 3x+4y=25
The temperature startedat 10 degrees F. The temperature dropped 5
degrees every hour. What was the temperature after 3 hours?
Answer:
-5FStep-by-step explanation:
10-5x3=-5 F
What is 6.23 billion in scientific notation?
Answer:
6.23 E9
Step-by-step explanation:
1 Billion = 1 E9
6.23 billion = 6.23 E9
Leave a thanks and mark brainliest if this helped.
Leave a thanks and mark brainliest if this helped.
Which expression is equivalent to 10(f + 6e)?
a. 2(5f - 3e)
b. f(10 + 6e)
c. 2(5f + 3e)
d. 10(f + 6e)
Answer:
D. 10(f + 6e)
Step-by-step explanation:
sana nakatulong
I need some help please
Answer:
109
Step-by-step explanation:
Formula
<ZHG + <IHZ = <IHG
Givens
<ZHF = 11x - 1
<IHZ = 24
<IHG = 12x + 13
Solution
11x - 1 + 24 = 12x + 13 Combine terms on the left
11x + 23 = 12x + 13 Subtract 13 from both sides
- 13 - 13
11x + 10 = 12x Subtract 11x from both sides
-11x -11x
10 = x
Answer
11x - 1 = 11*10 - 1 = 110 - 1 = 109
Help me help me please I have to finish this by Tommrow
A.
i did this test already trust me
Answer:
I am not sure check it
but the answer is A
Nov. 1 Loaned $52,200 cash to C. Bohr on a 12-month, 7% note. Dec. 11 Sold goods to K. R. Pine, Inc., receiving a $1,800, 90-day, 8% note. Dec. 16 Received a $4,800, 180-day, 10% note to settle an open account from A. Murdock. Dec. 31 Accrued interest revenue on all notes receivable.
Answer:
Dr Notes Receivable $52,200
Cr Cash $52,200
Dec. 11
Dr Notes Receivable $1,800
Cr Cash $1,800
Dec. 16
Dr Notes Receivable $4,800
Cr Accounts Receivable $4,800
Dec. 31
Dr Interest Receivable $637
Cr Interest Revenue $637
Step-by-step explanation:
Preparation of the journal entries
Nov 1
Dr Notes Receivable $52,200
Cr Cash $52,200
Dec. 11
Dr Notes Receivable $1,800
Cr Cash $1,800
Dec. 16
Dr Notes Receivable $4,800
Cr Accounts Receivable $4,800
Dec. 31
Dr Interest Receivable $637
Cr Interest Revenue $637
($609+$8+$20)
Working:.
Interest Revenue
Note that 1 Nov to Dec 31st will give us 2 months
=$52,200 x 0.07 x 2/12 =$609
Note that Dec 11 to Dec 31st will give us 20 days
=$1,800 x 0.08 x 20/360 =$8
Note that Dec 16 to Dec 31st will give us 15 days
=$4,800 x 0.10 x 15/360=$20
ABCD is a square with an area of 49 cm2, and BE = 4.95 cm. Point E is the midpoint of 2 diagonal lines crossed inside the square.
Answer:
I suppose we want to find the side length of the square.
We know that:
The area of the square is 49cm^2
The distance between one of the vertices of the square and the middle of the square is:
BE = 4.95cm
Now let's remember some things.
For a square of side length L, the area is:
A = L^2
and the diagonal length is:
D = √(2)*L
In this case, we know that half of the diagonal is equal to:
BE = 4.95 cm
Then the diagonal is:
D = 2*BE = 2*4.95cm = 9.9cm
And for the diagonal formula, we have:
D = 9.9cm = √(2)*L
Then the side length is:
L = 9.9cm/√(2) = 7cm
And if we check the area of this square, is:
A = L^2 = (7cm)^2 = 49cm^2
So it checks.
Then we can conclude that the sidelength of the square is 7cm, which means that:
AB = 7cm
BC = 7cm
CD = 7cm
DA = 7cm
please help asap, i need this!!!!!
The radius of a circle is 10 cm. Find its circumference in terms of pi
Answer:
20 pi is the correct answer
please help!! I’m doing 13 points since it’s sorta tricky!!
Answer:
c 10
Step-by-step explanation:
2units each and there are five spaces , this 10
Simplify. (Use the form a + bi.)
3 − 6i
−7i
Answer:
3 - 13i
Step-by-step explanation:
3 - 6i - 7i
3 - 13i
Can someone please help me with math.
Answer:
21) C it lies between 9 and 10 on a number line
I need help with math, I don't understand any of this type of stuff.
Answer:
option number three goes to square, option number two goes to trapezoid and las third option goes to rectangle.
Step-by-step explanation:
Super urgent please help urgent
Answer:
A) the value is less than 67
Step-by-step explanation:
does the graph below represent y as alinear function of x. yes or no
9514 1404 393
Answer:
No
Step-by-step explanation:
The graph is not a straight line with define slope, so does not represent a linear function.
__
The graph has segments that are straight lines. It is what we call "piecewise linear."
A wheel has a diameter of 28 inches. What is the approximate distance around the outside of the wheel? Use 3.14 for pi.
Answer:
43.96
Step-by-step explanation:warning might be wrong
Given the definitions of f (x) and g(2) below, find the value of g(f(5)).
f(x) = x² - 6x – 6
g(x) = -3x + 11
Answer:
[tex]g(f(5)) = 44[/tex]
Step-by-step explanation:
First, solve for [tex]f(5)[/tex]
[tex]f(5) = 5^2-6(5)-6 = -11\\[/tex]
Then, plug in what you got for [tex]f(5)[/tex] into [tex]g(x)[/tex]. Since [tex]f(5) = -11[/tex] you will be solving for [tex]g(-11)[/tex].
[tex]g(-11) = -3(-11) + 11 = 44[/tex]
the answer is 44.
Please be sure to mark this answer as brainliest if it satisfies you.
Step-by-step explanation:
your answer is in the photo attached
Which of these is NOT an example of lateral surface area? A. The label of a soup can. B. Painting the walls of your bedroom. C. The paper wrapper of an ice cream cone. D. The air in a basketball
Answer:
I think it is D because it's just gas
Step-by-step explanation:
help help ASAP!!!!!!!
Answer:
Greatest angle measure is ∠Q
Smallest angle measure is ∠R
Step-by-step explanation:
As the length of side are in the same order as the measure of the angles opposite the lengths of sides. The greatest side is opposite to the greatest angle.
By using the properties of triangle , if one angle of a triangle is larger than the other angle, then the side opposite to the larger angle is greater than the side opposite to the smaller angle.
Longest side=PR=13cm
∴ Greatest angle measure is ∠Q
Smallest side=PQ=8cm
∴ Smallest angle measure is ∠R
please help me with this math problem, the question is on the picture that i attached, ill mark brainliest if the answer is correct. NO links!
Answer:
do u have insta
Step-by-step explanation:
The sum of two circles is 80 pi square meters. Find the length of the radius if one of them is twice as long as the other
Answer:
Length of Radius of large circle= 8
Lenght radius of first circle= 2
Step-by-step explanation:
THIS IS THE COMPLETE QUESTION
The sum of the areas of two circles is 80π square meters. Find the length of a radius of each circle if one of them is twice as long as the other.
What is the radius of the larger circle?
Area of a circle can be calculated by Below formula
A = πr^2............eqn(1)
Let ( X) = area of first circle
Y= the area of second circle
Rx= radius of first circle
Ry = radius of second circle
From the question, we know that
[X+ Y] = 80π .......eqn(2)
Substitute the radius formula for the area,
[π(Rx)^2 + π (Ry)^2] = 80π ......eqn(3)
But from the question, Radius of second circle is twice of the second one, then
Ry = 2Rx ..........eqn(4)
If we substitute eqn (4) into eqn(3)
[ π(Rx)^2 + π (2Rx)^2 = 80π
If factorize π out, then cancel it out
π[(Rx)^2 + π (2Rx)^2 = 80π
Then we have
(Rx)^2 + 4(Rx)^2 = 80
5(Rx)^2 = 80
(Rx)^2= 80/5
(Rx)^2= 16
(Rx)= 4
From eqn(4)
Ry = 2Rx
Ry= 2(4)
Ry= 8
Rx= 2 and Ry= 8
Hence, radius of first circle= 2
Lenght Radius of second circle= 8