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
mezya [45]
2 years ago
7

You are attempting to estimate the number of protester marching through the city

Mathematics
1 answer:
Alenkinab [10]2 years ago
3 0

9514 1404 393

Answer:

  1000

Step-by-step explanation:

If the number of protesters per minute remains a constant, then you could write the proportion ...

  p/12 = 177/2.1

Multiplying by 12 gives ...

  p = 12(177/2.1) ≈ 1011.4

Here, minutes are given to 2 significant figures, and the initial count is given to 3 significant figures. The best you can hope for is that your estimate is good to 3 significant figures:

 1010 protesters

It is probably sufficient to report the number to 2 significant figures*:

  1000 protesters

_____

* Unfortunately, with a number like 1000, the only way you can tell it has 2 significant figures is to report it as 1.0×10³ or 10. hundreds. The trailing zeros are usually not considered significant.

You might be interested in
What is multiply: -7*4
Luden [163]

Answer:

-28

you welcome ........ :)

7 0
3 years ago
The probability of event A occurring is 50%, and the probability of event B occurring is 25%. Events A and B are nonsimultaneous
Misha Larkins [42]

Answer:

The probability of event A occurs but event B does not occur = P(A)* Probability of event B does not occur = 0.375

Step-by-step explanation:

The probability of event A occurring = 50% = 0.5

The probability of event B occurring = 25%  = 0.25

Events A and B are non simultaneous events.

The probability of event B does not occur = 1 - P(B)

= 1- 0.25

= 0.75

So the probability of event A occurs but event B does not occur = P(A)* Probability of event B does not occur

= 0.5*0.75

= 0.375

Thank you.

6 0
3 years ago
What is the equation of the line passing through the point (-2,-1) and perpendicular to the line y = 1/2x+5?
uranmaximum [27]

Step-by-step explanation:

the slope of a line is always the factor of x.

here : 1/2

it is the ratio y/x indicating how many units y changes, when x changes a certain angina amount of units when going from one point to another.

a perpendicular slope puts x and y upside-down and flips the sign.

here : -2/1 = -2

so, the equation looks like

y = -2x + b

b is the y-intercept, and we get this by putting the x and y coordinates of the given point into this equation and solve for b :

-1 = -2×-2 + b

-1 = 4 + b

b = -5

the full equation is therefore

y = -2x - 5

3 0
2 years ago
A baseball player has a batting average of 0.325 each week of the season, with a standard deviation of 0.065. What is the z scor
ad-work [718]

Answer: Your answer is 1.308

Step-by-step explanation: Yw and I sure hope this helps U. And pls mark me as brainiest

7 0
2 years ago
Select all the equations where m = 4 , equals, 4 is a solution
sammy [17]

Answer:

option a and b

Step-by-step explanation:

Revenge!

5 0
3 years ago
Other questions:
  • State the order of operations in -2(x-5)^2+8:<br><br> 1.<br> 2.<br> 3.
    15·2 answers
  • 10.x / 2-5 = 3<br> i need help with this
    14·1 answer
  • Order from least to greatest, please.
    14·1 answer
  • Answer the questions for 2.) please! (the Science Test Scores question)
    14·1 answer
  • F(x)=1/|x−2| <br><br>find range
    7·1 answer
  • PLEASE HELP ME I HAVE NO IDEA HOW TO DO THIS AND I HAVE AN F IN MATH!<br>pythagorean theorem ​
    6·1 answer
  • HHHEEEEEELP PLEASE!!!! NEED ASAP!!!! HUUUURRRRYYYY
    14·1 answer
  • X^2-x-20 how do I write that in factored form
    12·2 answers
  • −13 − (−27) <br> pls help-
    13·1 answer
  • Tony can cycle a distance of 9 5/6 miles in 3/5 hours. What is his unit rate
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!