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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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Teresa bought 16 roses for $20.64. How much did she pay for each rose
jeka94
Roses: 16
Total Cost: $20.64

Divide:
$20.64 ÷ 16
=  $1.29

Each Rose cost $1.29

Hope This Helped! :3
6 0
3 years ago
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If k(t)=3/4t-3 what is the value of k(-12)?
Valentin [98]

Answer:

-3.0625

Step-by-step explanation:

just plug in -12

3/4t-3

3/2(-12)-13

then solve to get -3.0625 or -3.06

and this is how you solve any problem like this.

8 0
3 years ago
Which of the following values are zeros for the function below g(x)=(x2+4x-12)(x-3)
Brilliant_brown [7]

Answer:

<h2>-6, 2 and 3</h2>

Step-by-step explanation:

g(x)=(x^2+4x-12)(x-3)=(x^2+6x-2x-12)(x-3)\\\\=[x(x+6)-2(x+6)](x-3)=(x+6)(x-2)(x-3)\\\\\text{The zeros for}\ g(x)=0:\\\\(x+6)(x-2)(x-3)=0\iff x+6=0\ \vee\ x-2=0\ \vee\ x-3=0\\\\x=-6\ \vee\ x=2\ \vee\ x=3

4 0
3 years ago
Make w subject of formula<br> C=(4+w)/(w+3)
grin007 [14]

Answer:

Step by Step Solution

More Icon

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

c-((4+w)/(w+3))=0

STEP

1

:

4 + w

Simplify —————

w + 3

Equation at the end of step

1

:

(w + 4)

c - ——————— = 0

w + 3

STEP

2

:

Rewriting the whole as an Equivalent Fraction

2.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using (w+3) as the denominator :

c c • (w + 3)

c = — = ———————————

1 (w + 3)

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2 Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

c • (w+3) - ((w+4)) cw + 3c - w - 4

——————————————————— = ———————————————

1 • (w+3) 1 • (w + 3)

Equation at the end of step

2

:

cw + 3c - w - 4

——————————————— = 0

w + 3

STEP

3

:

When a fraction equals zero :

3.1 When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

cw+3c-w-4

————————— • w+3 = 0 • w+3

(w+3)

Now, on the left hand side, the w+3 cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

cw+3c-w-4 = 0

Solving a Single Variable Equation:

3.2 Solve cw+3cw-4 = 0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

We shall not handle this type of equations at this time.

6 0
2 years ago
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Which real-world situation matches the relationship shown in the table? HURRY PLEASE IM TIMED
makvit [3.9K]
It’ll be 9 miles every day :)
6 0
3 years ago
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