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Veronika [31]
3 years ago
7

Ms. Sims is trying to find out how many residents in her neighborhood are interested in having a yard sale. She decides to just

ask the president of the neighborhood association to tell her the names of the people who she thinks will be interested in participating. Are the results of the survey reliable? Why or why not?
Mathematics
2 answers:
castortr0y [4]3 years ago
7 0

Answer: c. The results are not reliable because some new residents may not be on the list at the neighborhood association.

Step-by-step explanation:

miskamm [114]3 years ago
6 0
Yes because it is coming from a primary source

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Variables x and y are in direct proportion, and y = 48n when x = 16n. Which value of k correctly relates x and y in the equation
ella [17]
You want k.
k=y/x=48n/16n=3
3 0
3 years ago
David biked 24 miles in 4 hours if he biked at a constant speed how many miles did he bike per hour
pishuonlain [190]

Answer:

david biked 6 miles every hour!

Step-by-step explanation:

7 0
3 years ago
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What are the length and width of a rectangle if the length exceeds the width by 75 inches and the perimeter is 158 inches
olga nikolaevna [1]
Width of 76 inches and length of 3

or width of 77 and length of 2

or width of 78 and length of 1

they all have a perminiter of 158 and all widths exceed 75

8 0
3 years ago
Multiple choice <br> a. 126 pie cm^3<br> b. 84 pie cm^3<br> c. 504 pie cm*3
Elza [17]

Answer:

a. 126 pie cm^3

Step-by-step explanation:

Area of a circle = pi*r²

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(pi*r²)*14

Since your answers are with Pi omit the Pi and times 3² * 14 = 126 pie cm³

6 0
3 years ago
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The length of a rectangle is x times the square root of 100. The width is one-half y more than three-halves x. Given that the ar
dimulka [17.4K]

Answer:

15x^2+5xy-125=0

Step-by-step explanation:

We are give the following in the question:

Dimensions of rectangle:

Length , l =

l = x\sqrt{100} = 10x

Width of rectangle, w =

w = \dfrac{y}{2} +\dfrac{3x}{2}

Area of rectangle = 125 square cm.

Area of rectangle =

A =l\times w

Putting values, we get,

125 = 10x\times (\dfrac{y}{2}+\dfrac{3x}{2})\\\\125 = 5xy+15x^2\\15x^2+5xy-125=0

is the required equation.

7 0
2 years ago
Read 2 more answers
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