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Alla [95]
3 years ago
5

Simplify the following

Mathematics
1 answer:
kondaur [170]3 years ago
6 0

Answer:

#1: 2 (30) ix3 y3 (it wouldnt let me put the symbols

)

#2: ={2}x3y

Step-by-step explanation:

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Consider the following system of equations. -10x2-10y2=-300 5x2+5y2=150 Which statement describes why the system has infinite so
scoundrel [369]

Answer:

The equations represent circles that result in the same graph.

Step-by-step explanation:

we have

-10x^{2}-10y^{2}=-300

Divide by -10 both sides

x^{2}+y^{2}=30 -----> equation A

This is the equation of a circle centered at origin with radius r=\sqrt{30} \ units

and

5x^{2}+5y^{2}=150

Divide by 5 both sides

x^{2}+y^{2}=30 -----> equation B

This is the equation of a circle centered at origin with radius r=\sqrt{30} \ units

equation A and equation B are equal

therefore

The system has infinite solutions, because the equations represent circles that result in the same graph.

4 0
3 years ago
Can someone help? it’s 7th grade math and im finishing this project for the end of the year
drek231 [11]

Answer:

c

Step-by-step explanation:

8 0
2 years ago
What is the factors of 27
Kaylis [27]

Answer:

1, 27, 3, 9,

Step-by-step explanation:

To find the factors of 27 you need to find which whole number times another whole number = 27

We know that 1*27 = 27

We also know that 3*9 = 27

The factors are all the numbers that are used in the multiplication.

In this example the numbers are: 1, 3, 9 and 27

6 0
3 years ago
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Lannie ordered 12 copies of the same book for his book club members. The book cost $19 each, and the order has a $15 shipping ch
SashulF [63]

Hey there!

First, we need to find how much Lannie paid for all 12 copies. To do this, all we have to do is multiply the unit price ($19) by how many copies he bought (12)

$19 x 12 = $228

So, he spent $228 on the books, but we also need at add the shipping charge:

$228 + $15 = $243

Therefore, the total cost of Lannie’s order is $243

Hope this helps you!

God bless ❤️

Brainliest would be appreciated

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Suppose the bank installs nine alarms. What is the expected number of alarms that will detect a burglar?
Harrizon [31]
The answer is 6 because
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3 years ago
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