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Makovka662 [10]
3 years ago
11

Show your mastery of converting between decimals, fractions and percents by answer the following questions.

Mathematics
1 answer:
kobusy [5.1K]3 years ago
3 0
Question 1. I am assuming you meant 9/16, and in that case, the answer would be 0.5625. 9-16 is -7.
Question 2. 35.7% in decimal form is relative to what the percent is of. 35.7% of a million is different than 35.7% of one.
Question 3. Once again, this is relative as to what. Percentage of the weight of an elephant? It is important to specify in these types of equations.
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A door with width 4.20m has an arc as shown in the diagram. Find: a) the radius of the arc, to the nearest cm. b) the length of
Ksju [112]

Hi there!

~

R = \frac{2.1}{sin 67.5}

Arc = R \frac{3\pi }{4}

(A)

Hope this helped you!

5 0
2 years ago
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Cos(7π/6)= a. 1/2 b.-1/2 c.√3/2 d.-√3/2 Help please?
olga nikolaevna [1]

Answer:

D. -√3/2

Step-by-step explanation:

Remember your unit circle.

Alternatively, you can plug in cos(7π/6) into your calc (Put it in rad mode) and calculate your answer.

3 0
3 years ago
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Evaluate for x=2 and y=3: x^2y^-3/x^-1y
Artemon [7]

Answer:

8/81

Step-by-step explanation:

It's most efficient to simplify the quotient algebraically before inserting the values of the variables x and y.  

The given expression reduces to x³ / y^4.

Substituting 2 for x and 3 for y, we get:

 (2)³           8

--------- = ---------- (Agrees with first given possible answer)

 (3)^4         81

4 0
3 years ago
Please solve this problem and show your work !! Please answer this !!
anastassius [24]

Answer:

-18k^2+72kx+54x^2

Step-by-step explanation:

Sorry i don't have the step-by-step but that's the answer

4 0
3 years ago
Just answer the multiple-choice pls
Yanka [14]

Answer:

its B

Step-by-step explanation:

8 0
2 years ago
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