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marysya [2.9K]
3 years ago
5

What are the answers to 18-38

Mathematics
1 answer:
Maslowich3 years ago
5 0
The answer is to your question -20
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Janet is drawing the path formed by the parametric equations x=2+3 sin t and y=1-1/2cos t. Which curve did she draw??
irakobra [83]
Sin²t +cos²t =1

<span> x=2+3 sin t
sin t=(x-2)/3

</span><span>y=1-1/2cos t
y-1= - (cos t)/2 
cos t =-(y-1)/(1/2)

</span>(x-2)²/3² + (y-1)²/(1/2)² = 1
Ellipse
5 0
3 years ago
Find (f*f)(x) for the function f(x)=8x+9 and simplify
Alexus [3.1K]

Answer:

f(fx) = 64x + 81

Step-by-step explanation:

f(x) = 8x + 9

f(fx) = 8(8x+9) + 9

= 64x + 72 + 9

= 64x + 81

(Correct me if i am wrong)

5 0
3 years ago
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Algebra Please help<br> Simplify (2√5+3√7)^2
GREYUIT [131]
4√5+9<span>√7

Hope this helps!</span>
4 0
3 years ago
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HELP ME ASAP
MArishka [77]
1)

a.
60 ounces = 3 pounds

So no, you don’t have as much fruit as you need.

b.
60 ounces —> 3 pounds
X ounces —> 4 pounds

Cross product :

(60 x 4) / 3 —> 240/3 = 80

So in order to have 4 pounds of fruits, you need 80 ounces of fruits.

You already have 60 ounces of fruits.

X + 60 = 80

80 - 60 = X

20 = X

You need 20 more ounces to have 4 pounds of fruits.

:)
5 0
3 years ago
a bookstore sold 1,250 books in a month. if 70% of the books the store sold were paperbacks, how many paperback books did the st
xeze [42]
If you would like to know how many paperback books did the store sell in a month, you can calculate this using the following steps:

paperback books: 70% of the sold books = 70% of 1,250 books = 70% * 1,250 = 70/100 * 1,250 = 875 books

The correct result would be 875 paperback books.
8 0
3 years ago
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