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Vladimir79 [104]
4 years ago
9

Each student in a pottery class is responsible for cleaning the area around his or her workspace at the end of the lesson. Each

student's area is approximately . There are 13 students in the class. Assuming that each student cleans his or her area, how many square feet in total is cleaned? Solve the problem by each of these methods.
Method 1: Convert the fraction to an improper fraction and multiply.
Method 2: Use addition to rewrite the fraction, and multiply using the distributive property.
Answer:
i need the answer for a and b show your work
Mathematics
1 answer:
Nikolay [14]4 years ago
5 0
Ok this is not as hard as it seems

(4.5 feet)^2 times the number of students (13)

20.25 x 13

263.25 is the correct answer
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8 0
3 years ago
Please help me....Use the Pythagorean identity
RideAnS [48]

Using the Pythagorean identity, the value of the cosine ratio is \cos(\theta_1) =  \frac{84}{85}

<h3>How to determine the cosine ratio?</h3>

The given parameter is:

\sin(\theta_1) = -\frac{13}{85}

By the Pythagorean identity, we have:

\sin^2(\theta_1) + \cos^2(\theta_1) = 1

So, we have:

(-\frac{13}{85})^2 + \cos^2(\theta_1) = 1

This gives

\cos^2(\theta_1) = 1 - (-\frac{13}{85})^2

Evaluate

\cos^2(\theta_1) = 1 - \frac{169}{7225}

Take LCM

\cos^2(\theta_1) = \frac{7225 -169}{7225}

This gives

\cos^2(\theta_1) = \frac{7056}{7225}

Take the square root of both sides

\cos(\theta_1) = \pm \frac{84}{85}

Cosine is positive in the fourth quadrant.

So, we have:

\cos(\theta_1) =  \frac{84}{85}

Hence, the cosine value is \cos(\theta_1) =  \frac{84}{85}

Read more about Pythagorean identity at:

brainly.com/question/1969941

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4 0
3 years ago
Use slope-intercept form to write the equation of a line that has a slope of −3 and passes through the point (1, −5).
Hatshy [7]

Answer:

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Step-by-step explanation:

The equation of a line in slope- intercept form is

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Here m = - 3, thus

y = - 3x + c ← is the partial equation

To find c substitute (1, - 5) into the partial equation

- 5 = - 3 + c ⇒ c = - 5 + 3 = - 2

y = - 3x - 2 ← equation of line

7 0
3 years ago
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Answer:

a

Step-by-step explanation:

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5 0
4 years ago
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X2(squared)x7(squared)x to the power of 9
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