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
Harrizon [31]
2 years ago
9

If you were to randomly survey 1,000 people at a local grocery store about their use of corrective lenses, would this be a valid

random sample for your study on use of corrective eyewear in the United States? Why or why not?
Mathematics
2 answers:
gayaneshka [121]2 years ago
7 0
You would probably need a little larger sample of people because not all people wear corrective lenses. In almost any other survey, this would be a scientist’s dream, but in this one, you’d need it to be a little bigger.
lubasha [3.4K]2 years ago
3 0

Answer:

You would probably need a little larger sample of people because not all people wear corrective lenses. In almost any other survey, this would be a scientist’s dream, but in this one, you’d need it to be a little bigger.

Step-by-step explanation:

You might be interested in
F(x)=x^2. What is g(x)?
Nina [5.8K]

Answer:

C

Step-by-step explanation:

I'm super sorry if I get this wrong you don't have to choose C I feel like I'm wrong but have a nice day

4 0
2 years ago
The sixth term is 22 and the common difference is 6 what is the 15th term?
matrenka [14]

Answer:

76

Step-by-step explanation:

I made a chart to simplify it

1 | -8

2| -2

3| 4

4| 10

5| 16

6| 22

7| 28

8| 34

9| 40

10| 46

11| 52

12| 58

13| 64

14| 70

15| 76

5 0
3 years ago
Shannon is selling boxes cookies and candy for a fundraiser. She's sold each box of cookies for $5.25. She also sold one one box
defon

Answer:

The minimum boxes of cookies is 39

Step-by-step explanation:

Let

x ----> the number of boxes of cookies sold

y ----> the number of boxes of candies sold

we know that

The word "at least" means "greater than or equal to"

so

The inequality that represent this problem is

5.25x+8.75y\geq 200

The solution is the shaded area above the solid line   5.25x+8.75y=200

using a graphing tool

The solution is the shaded area -----> see the attached figure

Find out the minimum boxes of cookies needed to sell to reach the goal

assuming only cookies are sold

For y=0

5.25x+8.75(0)\geq 200

5.25x\geq 200

solve for x

x\geq 38.1

Round up

therefore

The minimum boxes of cookies is 39

5 0
2 years ago
To begin a bacteria study, a petri dish had 2800 bacteria cells. Each hour since, the number of cells has increased by 7.2%. Let
Rudiy27
The function that models exponential growth is:

P(t) = P0*(1 + r)^t, where

P0 = P(0) is the initial value of P

r is the growth rate as a decimal

In our case we have:

P(0) = 2800

r = 0.035 or 3.5%

P(t) = 2800*(1 + 0.035)^t

P(t) = 2800*(1.035)^t

The same exponential function written using y and t is:

y = 2800*1.035^t.

Explanation: https://softmath.com/algebra-word-problems/to-begin-a-bacteria-study-a-petri-dish-had-2800-bacteria
7 0
2 years ago
What is the value of the function when x = 4?<br><br> y = 3x + 7
adelina 88 [10]

2x - 3y = 7 and -3x + y = 7..multiply Equation 2 by THREE and add to Equation 1
-9x + 3y = 21...........................watch the y's disappear
-7x........ = 28
x = -4
substitute -4 instead of x in either of the ORIGINAL equations

2x - 3y = 7
2(-4) - 3y = 7
-8 -3y = 7..........add 8 to both sides
-3y = 15
y = -5

im not sure


8 0
3 years ago
Read 2 more answers
Other questions:
  • The pool is open 8 hours a day it has to be divided into five groups how much time would each get
    5·2 answers
  • A keycode must contain 2 letters and 3 numbers. The letters may be any letter of the alphabet. The numbers should be any number
    6·2 answers
  • Hellppppppp memeemme
    12·2 answers
  • Please help this is a big test!
    8·1 answer
  • How to solve <br> (2.31*10^-6)+(5.87*10^-4)
    5·1 answer
  • Between which set of ordered pairs is the distance the least?
    5·1 answer
  • Using The diagram, name two pairs of adjacent angles and two pairs of vertical angles.​
    15·1 answer
  • GUYS HELP ME.. plEASEEEEE
    11·1 answer
  • Sarah decides to shop online at Hudson's Bay for some items. She buys a set of skis for $75.99, a pair of ski gloves for $25.00,
    12·1 answer
  • PLEASE FAST!!!! WILL GIVE BRAINLIEST!!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!