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Vlad [161]
3 years ago
11

In a music group of 45 people, 1/9 are vocalists and the rest play musical instruments. How many play musical instruments

Mathematics
1 answer:
babymother [125]3 years ago
3 0
40 play musical instruments
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Write an expression to match the statement 1/5 of the difference between 18 and 11
dalvyx [7]
1/5 (18-11) I believe this is what you mean?
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3 years ago
Which graph shows the polar coordinates (-3,-) plotted
Slav-nsk [51]
Graph 1 would be the answer
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5X3X17X200X1,098<br><br><br> the X's are multiplication symbols
Sladkaya [172]

Answer:

55998000

Step-by-step explanation:

When you take 5 time 3 you get 15

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3 0
2 years ago
Consider the equations y = √x and y = x^2 - 1
lord [1]
<h3>Answer:</h3>

(x, y) ≈ (1.49021612010, 1.22074408461)

<h3>Explanation:</h3>

This is best solved graphically or by some other machine method. The approximate solution (x=1.49, y=1.221) can be iterated by any of several approaches to refine the values to the ones given above. The values above were obtained using Newton's method iteration.

_____

Setting the y-values equal and squaring both sides of the equation gives ...

... √x = x² -1

... x = (x² -1)² = x⁴ -2x² +1 . . . . . square both sides

... x⁴ -2x² -x +1 = 0 . . . . . polynomial equation in standard form.

By Descarte's rule of signs, we know there are two positive real roots to this equation. From the graph, we know the other two roots are complex. The second positive real root is extraneous, corresponding to the negative branch of the square root function.

8 0
3 years ago
A jacket's original price is 65.00. it is on sale for 40% off. you have to pay 5% sales tax. what is the final price for the jac
nekit [7.7K]
40% of 65.00=0.40×65=26
65-26=39(your price)

sales tax(5%)=0.05×39=1.95 tax

39+1.95
=40.95(total)
3 0
3 years ago
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