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jasenka [17]
4 years ago
7

72 : 9x2 It’s multiplication division and I need help

Mathematics
1 answer:
svp [43]4 years ago
6 0

Answer:

9x 2 equals 18. 72 divided by 18  is 4. So the answer is 4.

Step-by-step explanation:

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Fadil sells televisions. He earns a fixed amount for each television and an additional $30 if the
tamaranim1 [39]

Answer:

Fadil earns $60 for each tv sold.

Step-by-step explanation;

13 (30) = 390

390 is the cost of all the warranties.

Subtract 390 from 1,170 to find the fixed amount for 13 tvs.

1,170 - 390 = 780

Divide 780 by 13 to find the fixed amount per tv.

780 ÷ 13 = 60

3 0
3 years ago
Simply (tan^2 x - sec^2 x)(sin^2 x + cos^2 x)
kati45 [8]

we can use pythagorean identieis

remember that sin^2(x)+cos^2(x)=1

also remember that tan(x)=\frac{sin(x)}{cos{x}} and sec(x)=\frac{1}{cos(x)}

so if we take sin^2(x)+cos^2(x)=1 and divide both sides by cos^2(x) we get

\frac{sin^2(x)}{cos^2(x)}+\frac{cos^2(x)}{cos^2(x)}=\frac{1}{cos^2(x)}

(\frac{sin(x)}{cos(x)})^2+1=(\frac{1}{cos(x)})^2

tan^2(x)+1=sec^2(x)

subtracting 1+sec^2(x) from both sides

tan^2(x)-sec^2(x)=-1

now subsitute into original problem


\frac{tan^2(x)-sec^2(x)}{sin^2(x)+cos^2(x)}=

\frac{-1}{1}=

-1

the answer is -1

6 0
3 years ago
What are the constants in the expression below? 12x -3.7 -8y +1/3
Fantom [35]
Anything without a variable in front.

In other words, the constants are -3.7 and 1/3 
5 0
3 years ago
Read 2 more answers
The town library is raising money by selling old books for $2 each.Which equation can be used to find the amount of money raised
alexgriva [62]
Y=2x
y is the amount of money made from the sold books
x is the number of books that are sold (it is x because you don't know how many will be sold, so you have to account for all possibilities)
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5 0
3 years ago
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What is a example of a composite figure in your home or community? How would you decompose it to find the area? Can you think of
ipn [44]
Answer: An L-shaped room in your house

Imagine any room in your house that is not just a single rectangle, square or other shape. This would be an example of a composite shape. It simply means that it is made up of more than one shape.

For example, if you had a living room in the shape of an L. This would be a composite shape because you would have to put 2 rectangles together to make the shape.
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3 years ago
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