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Oksana_A [137]
3 years ago
12

3n-(2 + n) plz this is a big grade

Mathematics
1 answer:
Alex17521 [72]3 years ago
7 0
Im pretty sure n = to 8
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The sum of two numbers is 11. The sum of their squares is 65. Find the numbers. (How do you get the answer?)
Stels [109]
X is the number
<span>The sum of two numbers is 11, so other number is : 11 - x

</span><span>The sum of their squares is 65
</span>
x^2 + (11 - x)^2 = 65
x^2 + 121 - 2(x)(11) + x^2 = 65
2x^2 - 22x + 121 = 65
2x^2 - 22x + 121 -  65 = 0
2x^2 - 22x + 56 = 0
2(x^2 - 11x + 28) = 0
2(x - 7)(x -4 ) = 0
x - 7 = 0
x = 7

x - 4 =0
x =4

answer: the numbers are 4 and 7

double check:

<span>sum of two numbers is 11:
4 + 7 = 11

</span><span>The sum of their squares is 65
</span><span>4^2 + 17^2 = 16 + 49 = 65

</span>
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4 years ago
Identify the underlined place in 83.5851. Then round the number to that place. The 8 to the right is underlined.
Marina86 [1]
We have to round the number 83.5851 to the nearest hundredth.
If the next smallest place is greater than or equal to 5 we increase the value of the digit we are rounding to by one.
83.5851 ≈ 83.59
Answer: 83.59
8 0
3 years ago
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Is it impossible to raise the number to the power of to and get a number less than the original number
finlep [7]
No (unless you're talking about a whole number), for example...
0.2^2 = 0.04
8 0
3 years ago
Solve the system using elimination. ''x-3y=9 and -x+3y=-9
DiKsa [7]

Answer:

Infinitely many solutions.

Step-by-step explanation:

Let's solve your system by elimination.

x−3y=9;−x+3y=−9

x−3y=9

−x+3y=−9

Add these equations to eliminate x:

0=0

<u>Answer:</u>

Infinitely many solutions.

6 0
2 years ago
If a right circular cone intersects a plane that runs parallel to the edge of the cone, the resulting curve will be a(n)?
faust18 [17]
Question: <span>If a right circular cone intersects a plane that runs parallel to the edge of the cone, the resulting curve will be a(n)? 

Answer: Parabola

HOPE THIS HELPS! ^_^</span>
6 0
3 years ago
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