Answer:
The tires are spinning at 660.49 revolutions per minute.
Step-by-step explanation:
The speed of the tires (v) is the same that the speed of the car, so to find the angular velocity of the tires we need to use the equation:
[tex] \omega = \frac{v}{r} [/tex]
Where:
r: is the radius of the tires = d/2 = 28 inches/2 = 14 inches
[tex]\omega = \frac{55 mph}{14 inches*\frac{1 mile}{63360 inches}} = 2.49 \cdot 10^{5} \frac{rad}{h}*\frac{1 h}{60 min}*\frac{1 rev}{2\pi rad} = 660.49 rpm[/tex]
Therefore, the tires are spinning at 660.49 revolutions per minute.
I hope it helps you!
3. There is no expiration date on the debit card.
True
False
Use substitution. What is the solution to the system of equations?
y=1/2x+2
2y=x+4
Answer: Infinitely many solutions.
Step-by-step explanation:
[tex]y=\frac{1}{2}x+2\\2y=x+4\\[/tex]
Use [tex]\frac{1}{2} x+2[/tex] for y in [tex]2y=x+4[/tex]
[tex]2(\frac{1}{2}x+2)=x+4\\x+4=x+4\\x-x = 4-4\\0=0[/tex]
Infinitely many solutions.
EMERGENCY HELP PLS: The distance from P to the airplane is ? m.
Answer:
distance from P to the plane = 8957.6 m
Step-by-step explanation:
sin23 = 3500 / distance from P to the plane
distance from P to the plane = 8957.6 m
A rectangle has a width that is 5 feet less than the length. The area of the rectangle is 126 square feet. Find the width of the rectangle
How can you simplify this???????
6(2x-5)+2(3x-7)
Answer:
6
Step-by-step explanation:
12x-5 + 6x-7=
=7x+-1x
=6
Help plz so I don't get phone taken
1) d/r = t
2) P/3 = s
3) 8.2cm
4) C/2pi = r
5) P/3r = q
A rectangular parking lot measures 40 m x 30 m.
How much distance can you save by cutting
across the parking lot instead of walking all the
way around it from A to C?
This is Grade 8 Math Pythagorean theorem
The cumulative frequency diagram shows the times taken by the members of two
different clubs, The Braineys and The Cleverites, to complete an intelligence test.
Cumulative
a) Find the median and the
frequency
interquartile range for The Cleverites
80
60
b) State which club, on average, was
slowest at completing the test.
Give a reason for your answer.
40
The Cleverites
The Braineys
20
10
20
50
30 40
Time, in minutes
Answer:
a) median=25 interquartile range=19
b) The Braineys as the median is 32 compared to 25.
Step-by-step explanation:
The median and interquartile range for the cleverites are : 25 and 20 respectively.
The slowest club on average is the Braineys
From https://brainly.com/question/14724605?referrer=searchResults :
The median value for the cleverites :
The Median is the time at the midpoint of the frequency curve :
Median frequency = Cummulative frequency / 2
Median frequency = 80 /2 = 40
Tracing to the intersection point on the curve and reading the x - value at the point of intersection ;
Median for the Cleverites is 25The interquartile range = (upper quartile - lower quartile)
Upper quartile = 3/4(Cummulative frequency) = 3/4(80) = 60
Upper quartile = 35 minutes
Lower quartile = 1/4(80) = 20
Lower quartile = 15 minutes
Interquartile range = (35 - 15) = 20 minutes
To obtain the slowest club on average, we could use the median :
Median for Cleverites = 25
Median for Braineys :
1/2(80) = 40
Time on the x axis corresponding to y = 40 is 32
Comparing the median values :
32 > 25
Braineys > Cleverites ;
The slowest on average at competing is Braineys as they have a higher completion time.
Learn more : https://brainly.com/question/14724605
A stock can go up, go down, or stay unchanged. How many possibilities are there if you own 3 stocks?
Answer:
There are 27 different possible outcomes.
Step-by-step explanation:
Assuming that you have 3 different stocks:
First, we need to find the number of events and the number of possible outcomes for each event.
Here we can assume that each one of the stocks is a event, and the number of possible outcomes for each one are:
Stock 1: 3 options (up, down, stay)
Stock 2: 3 options (up, down, stay)
Stock 3: 3 options (up, down, stay)
The total number of possible outcomes is equal to the product of the numbers of options for all the events.
Then the total number of possibilities is:
C = 3*3*3 = 27
can someone do this quick! I need the volume!!
Answer:
1125000
Step-by-step explanation:
just multiply them all
Answer:
i believe it should be 1125000
Step-by-step explanation:
Frodo goes to New Army and buys two pairs of jeans for $19.99 each, 3 shirts at $7.99 each, and a pack of socks for $5. He has a
coupon for 25% off his entire purchase. Sales tax is 7 %. What is the total cost after the discount and tax? $
109points plsss helpppppp now
Answer:
lol i answered on another 1 of ur things
Jacob is planting flowers in his yard. He goes to a nursery to purchase flowers, and he decides to purchase petunias and sunflowers. Each petunia plant costs $2.99 with tax, and each sunflower plant costs $2.79 with tax. Jacob has $43.85 to purchase the flowers. If he buys 10 petunia plants, which inequality can be used to find s, the number of sunflower plants that Jacob can purchase?
A.
10($2.99) + $2.79s < $43.85
B.
10($2.99) + $2.79s > $43.85
C.
10($2.99 + $2.79s) > $43.85
D.
10($2.99 + $2.79s) < $43.85
Answer:
A.
10($2.99) + $2.79s < $43.85
Step-by-step explanation:
Hope it helps you in your learning process.
Mrs. Salwierz ran 31 kilometers in 6 hours. If she ran at a constant speed, how many kilometers did she run in 4 hours?
Answer:
20.67 km mr salwierz ran in 4 hours
by using unitary method
Using five different digits, form a 5-digit number
which represents
(a) the smallest odd number
Answer:
10235
Step-by-step explanation:
A class has $90 to spend on a field trip. The field trip costs $2.50 per person and there will be 5 chaperones on the trip. One student used the inequality 90 greater-than 2.50 (x + 5) to find x, the number of students that the field trip budget could accommodate. Which best describes the error in the student’s inequality?
The expression representing the cost should be 2.50 (5 x).
The expression representing the cost should be 2.50 (x + 5 x).
The inequality symbol should be Greater-than-or-equal-to instead of > since up to and including $90 may be spent.
The inequality symbol should be Less-than-or-equal-to instead of > since less than or equal to $90 may be spent.
Answer:
The inequality sign is not correct because the > symbol means greater than. However, up to and including $90 can be spent so the inequality sign should be ≥ (greater than or equal to).
The best description of the error in the student's inequality is; The inequality symbol should be Greater-than-or-equal-to instead of > since up to and including $90 may be spent.
What is the representation of the inequality?We are told that;
Amount for the class to spend = $90
Cost of field trip = $2.5 per person
Number of persons on the trip = 5 persons
Inequality used by a student is;
90 > 2.5(x + 5)
The inequality sign used above is not correct because the they have $90 to spend and so the inequality sign should be ≥ (greater than or equal to).
Read more about Inequality at; https://brainly.com/question/25275758
please please help I give you brainliest
Answer:
[tex]-1[/tex] - 6 + 3
Step-by-step explanation:
hope this helps
Answer:
i think it’s -4 I’m not sure tho..
Step-by-step explanation:
2/3 divided by 3/6 is : help asap
the answer is 4/3 OR 1 1/3 :)
What is the area of a rectangle with a length of
418 feet and a width of 2 feet? (HURRY PLZ I'M GETTING ASKED A QUESTION)
Answer:
8 1/4
Step-by-step explanation:
Answer:
836 feet
Step-by-step explanation:
For area, it is length times width, so in this case it would be 418 times 2.
WILL GIVE BRAINLIEST
Answer:
They only intersect once. (Correct letter is B)
Step-by-step explanation:
Slope Intercept Form:
2x - 4y = 3
-2x -2x
________
-4y = -2x + 3
Switch the signs of all of the numerals since you cannot have a negative 'y' value.
4y = 2x - 3
---- ---------
4 4
y= 1/2x - 3/4
-----------------------------------------------------------------------------------------------------------------
7y - 5x = 8
+5x +5x
----------------
7y = 5x + 8
---- ---------
7 7
y= 5/7x + 1 1/7
-----------------------------------------------------------------------------------------------------------------
After graphing the lines, you then can see that the lines only ever intersect once.
pls help! ill give brainless to the best answer !!
what is 25% of 75? show your work.
Answer:
18.75
Step-by-step explanation:
25% of 75 =
0.25 x 75 =
18.75
Hope that helps!
Answer:
18.75
Step-by-step explanation: I don't really know what work to show it was all mental
Does the following data best fit a linear, quadratic or exponential model?
{(0, 1), (1, 3), (2, 10), (3, 27)}
Directions Find the value of each variable
Answer:
X= 2 sqrt of 7
Y=2 sqrt of 7
Step-by-step explanation:
I just know the answer srry
hat is the value of x rounded to the nearest hundredth?
Question 5 options:
9
3
11
5
Answer:
3 might be wrong
Step-by-step explanation:
2
(✓7) - 4x4=9
✓9
3
Whats the equation for the table
Answer:
multiply by 32
Step-by-step explanation:
Derek's car has run out of gasoline. He walks 24 km west and then 10 km south looking for a gasoline station. If he is now h km directly from his starting point, find the value of h
Answer:
the value of h is √676km
Step-by-step explanation:
The computation of the value of h is shown below
Here we apply the Pythagoreus theorem
= 24^2 + 10^2
= 576 + 100
= √676
Hence, the value of h is √676km
We simply determine by using the Pythagoreus theorem
A shopper drives from the mall at point M to the post office located at point P. What distance does the shopper drive?
Part A: Explain the steps you would take to find the distance.
Part B: What distance does the shopper drive?
Answer:
Step-by-step explanation:
Part A: I would count the boxes from point M to point P.
Part B: The shopper drive 12 m.
The distance between the mall and the post office is 13 meters.
What is the distance between two points?It is the measure of distance between the two points and is known as length. The length is measured in meters generally.
Let one point be (x, y) and another point be (h, k). Then the distance between the points will be given as,
D² = (x - h)² + (y - k)²
From the diagram, the points are M(2, 5) and P(7, 17). Then the distance between the mall and the post office is calculated as,
MP² = (7 - 2)² + (17 - 5)²
MP² = 5² + 12²
MP² = 25 + 144
MP² = 169
MP = 13
Learn more about the distance between two points here:
https://brainly.com/question/18296211
#SPJ2
whats 2 other ways to write this equation:
40 = 19+7x
Answer:
1: 7x+19=40
2: 19+7x=40
Step-by-step explanation:
Explain why I got it right because I have no idea how to do it and It’s 100 points ?? Can someone help ?
Answer:
its asking you to reflect or reverse it like fliping it around on a number line. 1 was the x axis so it was flipped to -1 and so with part b.
Step-by-step explanation:
Given g(x)=-x-2g(x)=−x−2, find g(0)g(0).
Answer:
g(0) = -2
Step-by-step explanation:
Given - g(x) = -x - 2
To find - g(0)
Proof -
We have given the function ,
g(x) = -x - 2
For finding the value of g(0), we just have to put x = 0 in g(x),
We get
g(0) = -0 - 2 = -2
⇒g(0) = -2
A ball is dropped from a height of 20 feet. It hits the ground and bounces up half as high as it fell. This is true for each successive bounce. What height does the ball reach on the fourth bounce
Answer:
1.25 m
Step-by-step explanation:
Given that :
Initial height of drop = 20 meters
Rebound after each drop = 1/2 of height
Height after 4th rebound = 5th term of a geometric series
An = a1 * r^(n-1)
a1 = first term = initial drop height
r = common ratio = ratio of rebound per drop = 1/2 = 0.5
A5 = 20 * 0.5^(5 - 1)
A5 = 20 * 0.5^4
A5 = 20 * 0.0625
A5 = 1.25 m
Hence height after 4 reboubd = 1.25 m
Using another method :
1st bounce height = 20 * 0.5 = 10
2nd bounce height = 10 * 0.5 = 5
3rd bounce height = 5 * 0.5 = 2.5
4th bounce height = 2.5 * 0.5 = 1.25