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DochEvi [55]
3 years ago
12

An advertising firm plans to have a sample of individuals view a commercial on a ‘‘sunscreen pill” that one can swallow to provi

de mild SPF protection throughout the day. After viewing the commercial, each individual will be asked if he/she would consider buying the product. How many individuals should the firm sample to estimate the proportion who would consider buying the product to within a margin of error +-3% with 90% confidence?
Mathematics
1 answer:
AleksandrR [38]3 years ago
3 0
Tkejebb rn e. E. R r. R r hejejebenjebebenenbr
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Describe how you would simplify the given (20x5y2/5x-3y7)
madam [21]

Steps:

1: Pulling out like terms/factors

2: Trying to factor as a Difference of Squares

Description:

Let's simplify step-by-step.

20x⁵y²/5 x -3 y⁷

=4x⁶y²−3y⁷

Answer: =4x⁶y²−3y⁷

Please mark brainliest

<em><u>Hope this helps.</u></em>

7 0
3 years ago
A flat screen TV is on sale at Best Buy for $295.
Amanda [17]

Answer:

$314.18

Step-by-step explanation:

6.5% as a decimal would be 0.065.

First, multiply 0.065(295) to find the tax.

0.065(295)=19.175.

This means that tax would be $19.18.

Next, add the tax to the cost of the flat screen TV to find the total cost:

$19.18+$295=$314.18

The total cost is $314.18

4 0
3 years ago
Factor the polynomial below.
Zolol [24]

Answer:

Answer is Option D. 6x^{2} y^{2}z(xy+2z^{2})

Step-by-step explanation:

In the expression given we will do the factors of two polynomials first and then we will take the common factors out of the bracket.

First we do the factors of 6x^{3} y^{3}z=6×x^{2}×x×y^{2}×y×z

Now we do the factors of 12x^{2} y^{2} z^{3}=2×6×x^{2}y^{2}×z×z^{2}

Now take the common factors of both the polynomials out of the bracket

⇒3×2x^{2} y^{2}z(xy+2z^{2})

4 0
3 years ago
HELP!!!! Order the lengths of the sides of ABC from greatest to least
azamat

The comparison of the lengths of the sides based on the angles are given

by sine rule.

The lengths of the sides from greatest to least are;

  • <u>BC > AC > AB</u>

Reasons:

The given parameters are;

∠A = 78°, ∠B = 56°, ∠C = 46°

By sine rule, we have;

\displaystyle \frac{AC}{sin(56^{\circ})} = \frac{AB}{sin(46^{\circ})} = \frac{BC}{sin(78^{\circ})}

Given that, sin(46°) ≈ 0.719, sin(56°) ≈ 0.829, sin(78°) ≈ 0.978, we have;

sin(78°) > sin(56°) > sin(46°)

Therefore, applying equal proportions of similar ratios, we have;

<u>BC > AC > AB</u>

Learn more about sine rule here:

brainly.com/question/7591047

6 0
3 years ago
Solve the system of equations. <br> 3х + 4y = - 23<br> х = 3y +1
Nataliya [291]
ANSWER:
x = -5
y = -2
7 0
3 years ago
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