Answer: The wheels turn about 3771 times in 5 miles.
Step-by-step explanation:
Given, Kelly rides on her bicycle such that the number of times wheels turn for every 140 feet = 20
Turns for every feet = [tex]\dfrac{20}{140}=\dfrac{1}{7}[/tex] ...(i)
To find : Number of times wheels turn in 5 miles.
Since , 1 mile = 5,280 feet
Then, 5 miles = 5 x (5,280 feet) = 26,400 feet
Now , Number of times the wheels turn in 26,400 feet = 26400 x (Turns for every feet)
[tex]26400\times\dfrac{1}{7}=3771.42857143\approx3771[/tex] [From (i)
Hence, the wheels turn about 3771 times in 5 miles.
The tiles below represent the polynomial, what is the factorization of 2x2 + 7x + 6
Answer:d
Step-by-step explanation: just factor it out
The factorisation of the given polynomial is (x+2)(2x+3). Therefore, option D is the correct answer.
The given polynomial is 2x²+ 7x + 6.
We need to factorise the given polynomial.
How to factorise the quadratic polynomials?In order to factorise a quadratic algebraic expression in the form ax² + bx + c into double brackets:
Multiply the end numbers together ( a and c ) then write out the factor pairs of this new number in order.We need a pair of factors that + to give the middle number ( b ) and x to give this new number.Group the terms and take common factors out.Now, 2x²+ 7x + 6=2x²+ 4x +3x+ 6
=2x(x+2)+3(x+2)
=(x+2)(2x+3)
Therefore, option D is the correct answer.
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how do i calculate the height of a parallelogram?
Answer:
A/b = Area/base
Step-by-step explanation:
1)If area of the parallelogram has been given :
Area of a parallelogram = bxh
Area of a parallelogram/b = h
2) And if the measure of the sides is given then use Pythagoras theorem to find the height
Hope this will help u mate
The art and science of gathering, analyzing, and making inferences (predictions) from numerical information obtained in an experiment is called
Answer:
Statistics
Step-by-step explanation:
Statistics is the science of collecting and analysing numerical data in large quantities from a sample.
CB is tangent to ⊙A at point C. Find the radius.
Circle A is shown. Line segment A C is a radii. Line segment B C is a tangent and it intersects with the circle at point C. A line is drawn from point B to point A and a point is drawn where the line intersects with the circle. The length of the radius is r, the length of C B is 8, and the length of B to the circle is 5.
CB ⊥ AC by the radius-tangent theorem, so ∠C is a right angle.
ΔABC is a right triangle, so apply the Pythagorean theorem.
Use the steps and solve for the radius.
r2 + 82 = (r + 5)2
r2 + 64 = r2 + 10r + 25
Answer:
The Answer is 39/10! I Did The Assignment!
Step-by-step explanation:
The radius is 3.9 units
What is radius of circle?In geometry, the radius is defined as a line segment joining the center of the circle or a sphere to its circumference or boundary. It is an important part of circles and spheres which is generally abbreviated as 'r'. The plural of radius is "radii" which is used when we talk about more than one radius at a time. The largest line segment in a circle or sphere joining any points lying on the opposite side of the center is the diameter, and the length of the radius is half of the length of the diameter. It can be expressed as d/2, where 'd' is the diameter of the circle or sphere. Look at the image of a circle given below showing the relationship between radius and diameter.
given:
As, CB ⊥ AC by the radius-tangent theorem.
In ΔABC, applying the Pythagoras theorem
r² + 8² = (r+ 5)²
r² + 64= r² + 25 + 10 r
64 - 25 = 10 r
39 = 10r
r= 39/10
r= 3.9 units
Hence, the radius is 3.9 units.
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can someone help me find x pleaseeee
What is the length of side AB of parallelogram ABCD?
units
Answer:
8 units
Step-by-step explanation:
did the assignment
Answer:
8
Step-by-step explanation:
A bag contains 5 red balls 3 green beads and 2 blue beads if three beads are picked from the bag at radnom without replacement what is the probability that the beads that are picked are all different colors?
Answer:
1/4 or 0.25
Step-by-step explanation:
please kindly check the attached files for details
Write an equation with slope of 2/3 and y intercept of -3
Answer:
y = [tex]\frac{2}{3}[/tex]x - 3
Slope-intercept form: y = mx + b
(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)
You know:
m = 2/3
b = -3 So substitute/plug it into the equation
y = mx + b
[tex]y=\frac{2}{3}x-3[/tex]
A three-character code uses the letters D and Q. Either of the letters may be repeated.
Find the probability of a code with exactly two D’s.
Answer:
1/1 x 1/2 x 1/2 = 1/4
One times One-Half times One-Half Equals One-Fourth
The Probability is 1/4 or One-Fourth.
Step-by-step explanation:
There is a One-Half possibility on two of them for choosing D.
Multiply that by each other and than by 1.
A presidential candidate plans to begin her campaign by visiting the capitals of 5 of the 50 states. If the five capitals are randomly selected without replacement, what is the probability that the route is Sacramento, Albany, Juneau, Hartford, and Bismarck, in that order?
Answer:
The probability is 1/254,251,200
Step-by-step explanation:
We proceed as follows;
Firstly, we are selecting 5 state capitals out of 50. The number of ways we can do this is 50P5 = 50!/5!(50-5)! = 254,251,200 ways
Now, out of this number of ways , only one route is desired in that particular order.
This means the probability of having the route scheduled in that particular order would be;
1/254,251,200
Answer:
0.000000003933
Step-by-step explanation:
As the candidate will visit the capitals of 5 of the 50 states, the probability of each capital being selected is 1/50.
As we want a probability of 5 specific capitals in a specific order, we can calculate the probability of each capital being chosed:
First city being Sacramento: Probability of 1/50
Second city being Albany: Probability of 1/49 (as the first city is not available now)
Third city being Juneau: Probability of 1/48
Fourth city being Hartford: Probability of 1/47
Fifth city being Bismarck: Probability of 1/46
So the final probability is 1/(50*49*48*47*46) = 0.000000003933
The value of a particular investment follows a pattern of exponential growth. In the year 2000, you invested money in a money market account. The value of your investment t years after 2000 is given by the exponential growth model A=1700e^0.062t When will the account be worth $2466?
Answer:
The value of the investment will be worth $2466 in the year 2017
Step-by-step explanation:
In this question, we are tasked with finding the specific year in which an amount invested in a money market account reaches a particular value
To get this year, what we need to do is to get the value of t from the exponential equation given in the question. To get t, we simply make the value of A set to the particular value in the question.
Hence, we use [tex]A = 1700e^{0.062t} \\[/tex]
Now, we plug the value of A = 2466 and take the natural logarithm of both sides i.e [tex]Log_{e}[/tex] or simply ln
From;
[tex]2466 = 1700e^{0.062t}[/tex]
ln 2466 = ln[tex]1700e^{0.062t}[/tex]
ln 2466 = 0.062t ln1700
7.81 = 0.062t × 7.44
t = 7.81/(0.062 × 7.44)
t = 16.93 approximately 17 years
This means that the value of the investment will have that worth in the year 2000+17 = year 2017
The roof of the house down the road is in the shape of a square pyramid. The length from the gutter to the top is ퟏퟓ풇풕.and the length of gutter on one side is ퟏퟖ풇풕.with no overlap. One bundle of shingles covers ퟐퟓsquare feet. How many bundles should you buy to cover
Answer:
Therefore, the number of bundles to be bought is 22 bundles
Step-by-step explanation:
Here we have;
Dimensions of roof
Square pyramid = 4 triangular sides
Base length of triangle = Length of gutter on one side = 18 ft
Height of triangle = Length from the gutter on one side to the top of the roof = 15 ft
∴ Area of one of the four triangles = 0.5 × Base × Height = 0.5 × 15 × 18 = 135 ft²
Total area of four sides of the pyramid = 4 × Area of one of the four triangles
∴ Total area of four sides of the pyramid = 4 × 135 ft² = 540 ft²
Area covered by one bundle of shingle = 25 ft²/bundle
Therefore number of bundles of shingles required = [tex]\frac{Total \, area \ of \, four \ sides \ of \ the \ pyramid}{Area \ covered \ by \ one \ bundle \ of \ shingle} = \frac{540 \ ft^2}{25 \ ft^2/bundle} = 21.6 \ bundles \approx 22 \ bundles[/tex]
Therefore, the number of bundles to be bought = 22 bundles.
Convert the following to find the unknown measure.
1) 42 Km = ?
miles
2) 37 oz = ?
grams
3) 15.3 L = ?
Quarts
Answer:
1. 26.0976
2. 1048.93
3. 16.16733
what is the answer to this?
What is the x axis label what is the y axis label the order pair ????? Is found in the scatter plot
Answer:
AA BB CC DD EE FF GG HH II JJ KK LL MM NN OO PP QQ RR TT UU VV WW XX YY ZZ
Step-by-step explanation:
Answer:
height goes on the x–axis and, arm span goes on the y-axis, and the order pair is (30,27)
Step-by-step explanation:
PLEASE HELP! I NEED TO DO THIS!! FOR 15 POINTS!!
Identify the slope and a point from the equation:
My Answer was X = (5, -7)
I think I'm wrong, please help!!
Answer:
m = 1/2 point (5, -7)
Step-by-step explanation:
The equation is in point slope from
y - y1 = m(x-x1)
where m is the slope and (x1,y1) is a point on the line
y+7 = 1/2(x-5)
Rewriting
y - -7 = 1/2 (x - 5)
We can see that 1/2 is the slope and (5, -7) is a point on the line
Answer:
a)
Step-by-step explanation:
y - y1 = m(x - x1)
m = ½
Point: (5,-7)
A submarine dives as shown in the diagram.
To the nearest degree, determine the dive angle whose measure is x.
Answer:
Tan x = 125/500= 0.25
so x = arctan (0.25)
=14 degree
The measure of the diving angle is 14°.
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = Perpendicular / Hypotenuse
Cosec = Hypotenuse / Perpendicular
Cos x = Base / Hypotenuse
Sec x = Hypotenuse / Base
Tan x = Perpendicular / Base
Cot x = Base / Perpendicular
We have,
Sea level and 500 ft are parallel.
This means,
x° and end drive angles are alternate angles.
So,
tan x = 125/500
tan x = 0.25
x = [tex]tan^{-1}[/tex] (0.25)
x = 14°
Thus,
The measure of the diving angle is 14°.
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Experience shows that a ski lodge will be full (153 guests) if there is a heavy snow fall while only partially full (62 guests) with a light snow fall. What is the expected number of guests if the probability for a heavy snow fall is .40
Step-by-step explanation:
The total number of guests for lodge to be full = 153
During heavy snow fall, the lodge will be full.
The expected number of guests during heavy snow fall = 153
During partial snow fall, the expected number of guests = 62
The probability of heavy snowfall = 0.4
The probability of partial snow fall = 1 - 0.4 = 0.6
The expected number of guests = [(0.4) (153)] + [(0.6) (62)]
= 61.2 + 37.2
= 98.4
What is the solution to the proportion 6/11 = m/121
Answer:
m=66
Step-by-step explanation:
Answer:
m=66
Step-by-step explanation:
5x - y ÷ 8 when x = 5 and y = 8
Answer:
24
Step-by-step explanation:
5x - y ÷ 8
Let x=5 and y=8
5(5) -8÷8
PEMDAS
multiply and divide from left to right
25 -8÷8
25 -1
Then add and subtract
24
24
Step-by-step explanation:
First I replaced x and y so the equation was:
5(5)-8/8
multiply 5*5
25-8/8
25-1
When you subtract the answer is 24
And I solved this equation using PEMDAS!
Hope that helps!!
Figure ABCD has vertices A(−3, 2), B(2, 2), C(2, −4), and D(−3, −2). What is the area of figure ABCD?
Answer:
30 units
Step-by-step explanation:
In order to find the side lengths, you can either draw it out, or imagine it in your head. I would recommend drawing it if you're unfamiliar to the topic.
So when you draw it out, you see that AB is the width of the rectangle, and BC is the length.
In order to calculate it, you'd have to keep in mind which direction each line goes. Since AB is horizontal, we would use the x coordinates to find the length. [tex]x_{1}[/tex]-[tex]x_{2}[/tex] is the formula, where A is [tex]x_{2}[/tex], since it is farther left.
width = 2 - (-3)
w = 5
Now, you'd do the same thing, but with BC, and [tex]y_{1}[/tex]-[tex]y_{2}[/tex]. In this case, B is [tex]y_{1}[/tex], since it is further up.
length = 2 - (-4)
l = 6
Now, multiply them to find the area of a rectangle.
5 x 6 = 30
I hope this helps!
Yol drove 390.25 miles back home to surprise his brother for his birthday. The drive took 7 hours. What was Yol's average speed for the trip, in miles per hour?
Answer:
55.75 miles/hour is the average speed
Step-by-step explanation:
In this question, we are asked to calculate the average speed attained by Yol if he traveled a certain distance within a given time frame.
To calculate his average speed, what we do is to divide the distance travelled by Yol by the number of hours he traveled.
mathematically what we are saying is that
Average speed = Total distance/ Total time
From the question, the distance is 390.25 miles while the time is 7 hours
we now input these values
Average speed = 390.25/7 = 55.75 miles per hour is the average speed
To the nearest tenth percent, how many students played for exactly 4 hours?
7 3/4 divide 1/3 kjkgcccccccccccccccffffffhhhhhhhhhhhhhhhhhhhhhhffffffffffffffhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhg
Answer:
23 1/4
Step-by-step explanation:
factor the expression 3x^2 - 6x
Answer:
3x(x-2)
Step-by-step explanation:
1. find out the common factor in each components which is 3x
2. done.
6c + 14 = -5c + 4 + 9c solve for c
Answer:
-5
Step-by-step explanation:
6c + 14 = -5c + 4 + 9c
6c + 14 = 4c + 4
- 4. - 4
--------------------------
6c + 10 = 4c
- 6c - 6c
-----------------------
10 = -2c
--------------
-2. -2
C = -5
Answer:
-5 = c
Step-by-step explanation:
Step 1
6c + 14 = -5c + 4 + 9c
subtract 4 to the other side, then subtract 6c to the opposing side
ex: 14-4 = -5c -6c +9c
then combined.. 10= -2c
Step 2
divide -2 from 10 to solve for c.
ex: 10/-2 = c
solve... -5 = c
Chef Selena is making her special dish that requires pasta, sauce, and onions.
She has 5 1/8 pounds of pasta, 6 pounds of sauce, and 47/8 pounds of onions.
How many servings of her dish can she make if each serving is 12 pounds?
Which two equations are needed to solve the problem?
Answer:
4/3 servings or her dish can be made
These are the 2 equations:
Total = 5 and 1/8 pounds + 6 pounds + 4 and 7/8 pounds
N = Total / 10
Step-by-step explanation:
We know 1 serving = 12 pounds
We want the number of servings able to make. call it N
N = (Total pounds)/ (12 pounds/serving)
P = pasta per serving
S = sauce per serving
O= onions per serving
It appears that
P*N = 5 and 1/8 pounds
S*N = 6 pounds
O*N = 4 and 7/8 pounds
5 and 1/8 + 6 + 4 and 7/8 = Total
16 pounds total.
N = 16/12 = 4/3 servings
Total = 5 and 1/8 pounds + 6 pounds + 4 and 7/8 pounds
N = Total / 10
What is the length of the missing leg?
15 m/
9 m
meters
Answer:
The length of the missing leg is approximately 17.49 meters.
Explanation:
To find the length of the missing leg in a right triangle, you can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
So, if one leg(hypotenuse) is 15 meters and the other leg(base) is 9 meters, and we denote the missing leg as [tex]\(x\)[/tex] meters, we have:
[tex]\[x^2 + 9^2 = 15^2\][/tex]
[tex]\[x^2 + 81 = 225\][/tex]
[tex]\[x^2 =144 \][/tex]
Now, to find [tex]\(x\)[/tex] , we take the square root of both sides:
[tex]\[x = \sqrt{144}\][/tex]
[tex]\[x = 12\][/tex]
Question:
A right triangle's leg is 9 and the hypotenuse is 15, what is the other leg s length?
Johnny is trying to figure out how many miles he rode on his bike today.
He knows his bike uses wheels that are 30" tall, and it takes him 1 second
for it to make one complete revolution. If he rode for 1 hour and 11
minutes, how many miles did he ride? Use 3.14 for pi and round your
answer to the nearest mile.(Please note that 60 seconds = 1 minute, 60
minutes = 1 hour, 12" = 1 ft, and 5,280 ft = 1 mile).
PLEASE HELP !
Answer:
6 miles
Step-by-step explanation:
The time Johnny rode was ...
1 h 11 min = (60 min) +(11 min) = 71 min = 71 × (60 sec) = 4260 sec
The distance of one revolution of the bike tire is ...
C = πd = 3.14(30 in) = 94.2 in
So, the total distance Johnny rode was ...
(4260 sec)×(94.2 in/sec) = 401,292 in
__
We know there are 5280 feet in a mile, and each of those is 12 inches. So, the number of inches in a mile is ...
5280 ft = 5280×(12 in) = 63,360 in
__
The number of miles Johnny rode can be found by dividing the total distance by the distance in 1 mile:
(401,292 in)/(63,360 in/mile) = 6.33 mile
Johnny rode about 6 miles in 1 hour 11 minutes.
2. You put $3,800 dollars in a savings account. The bank will provide 1.8% interest every year. Write and solve a model that describes how much money will be in the account in 15 years.
Answer:
The money that will be in her account in 15 years is $4965.84
Step-by-step explanation:
Given data
Principal p= $3800
rate r= 1.8% - - - - - - 1.8/100=0.018
Time t= 15 years
Final amount A=?
The model that describes the e amount in the account is the compound interest model
A = P(1 + r)^t
Substituting our given data into this model we have
A= 3800(1+0.018)^1 5
A=3800(1.018)^15
A=3800*1.3068
A= $4965.84