1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
laiz [17]
3 years ago
9

Amir ran the first 200-meter leg of the relay race with a speed of 8,260 millimeters per second. Ryder ran the last 200-meter le

g with an average speed of 930 centimeters per second. Who ran the race faster, and how much faster was that person’s speed to the nearest meter per second?
A. Amir ran approximately 1 meter per second faster than Ryder.
B. Ryder ran approximately 1 meter per second faster than Amir.
C. Amir ran approximately 104 meters per second faster than Ryder.
D. Ryder ran approximately 104 meters per second faster than Amir.
Mathematics
1 answer:
Maurinko [17]3 years ago
5 0

Answer: Amir is faster than Ryder by speed of 104 meter per second.



Step-by-step explanation:


Speed of Amir=8,260 mm per second

We know that 1m =1000mm

Convert into meter per second, divide speed by 1000

Speed of Amir

Speed of Ryder=930 centimeters per second

We know that 1m =100 cm

Convert into meter per second, divide speed by 100

Speed of Ryder

As distance covered by both of then is same in relay race thus we can compare their speeds

We can see 8.26<9.3 and difference=9.3-8.26=1.04

Amir is faster than Ryder by speed of 1.04 meter per second.

You might be interested in
A recent study asked U. S. Adults to name 10 historic events that occurred during their lifetime that have had the greatest impa
Nadusha1986 [10]

Using the z-distribution, as we are working with a proportion, it is found that the 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, the parameters are:

z = 2.575, n = 2000, \pi = 0.77

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 - 2.575\sqrt{\frac{0.77(0.23)}{2000}} = 0.7458

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 + 2.575\sqrt{\frac{0.77(0.23)}{2000}} = 0.7942

The 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.

More can be learned about the z-distribution at brainly.com/question/25890103

7 0
2 years ago
What expression represents a number one fourth as great as 10-2
Bad White [126]

Answer:

8+1/4

Step-by-step explanation:

8+1/4 because 10-2 is 8.

6 0
2 years ago
Read 2 more answers
I need help with help on the one with the pink circle
podryga [215]

Answer:

15°

Step-by-step explanation:

The line in the middle of the triangle divides it into two triangles.  These two triangles are equal.  You can see this because the given angle (90°) is equal for both sides, and the bottom sides (23) are also equal to each other.  

Since the triangles are equal, this means that the given angle of 75° also applies to the other side.  The total degrees a triangle can have is 180°.  Use the given angles to solve for the unknown angle.

75° + 90° + x = 180°

165° + x = 180°

x = 15°

The angle measure will be 15°.

4 0
3 years ago
Match the description with the key term it represents. 1. Binder containing transcripts, diplomas, recommendations, etc. portfol
BARSIC [14]

Answer:

1. portfolio

2. résumé

3. online portfolio

3 0
2 years ago
A reactangular court measures 600 cm wide and 700 cm long find the perimeter?
Tcecarenko [31]

Answer:

2(l+b)

2(600cm+700cm)

2(1300cm)

2600cm

Therefore, the perimeter of the rectangular court is 2600cm.

4 0
2 years ago
Other questions:
  • What are the prime numbers between 50 and 60
    15·2 answers
  • BRAINLIESTT ASAP! PLEASE HELP ME :)
    8·1 answer
  • Joan had 227 dollars to spend on 8 books. After buying them she had 11 dollars. How
    12·1 answer
  • What is .1325 to the nearest thousand
    15·1 answer
  • What is 0.024mm to m
    12·1 answer
  • Triangle ABC is translated to image A’B’C’. In this translation, A(5, 1) maps to A’(6,-2). The coordinates of B’(-1,0). What are
    5·2 answers
  • What is The largest perfect square factor that's "hiding inside" of 72
    10·2 answers
  • Kinda ez please help aced+
    13·1 answer
  • If you have the equations 2x + 3y = 18 and y = 2x + 12 and use the substitution method to solve, what would be the value of x? A
    12·1 answer
  • Find the area of the triangle by forming a parallelogram.<br> Please I need it fast!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!