jjcooper05

16.10.2020 • 

Mathematics

Answer with solutions. Find the corresponding roots in the box for the given quadratic

equations and get the letters to decode the hidden message . You

may use the extracting the square root method

P:±6
M: ±7
C:5,6
A : 0
J:4,-1

Q:±√5
L:±11
H:±4
D:-4,1 I:±3

S:16,-6
Y: ±8
B:±4√2
E:±2
A:0,-4

U:6,0
U:±√10
N:6,-16
G:1,-1
T:±2√2

O:±6√2
V:±√3
I:±5
J:-7,-1
K:5,-2

W:±12
F:±2√3
X:±6
R:0,-6
•:9±√6
/4

Message :

1. x2 = 49
2. x2 -27 =0
3. 3x2-36= 0
4. 9x2 = 0
5. 5x2- 15=0
6. 2x2- 144=0
7. ( x + 3)2 = 9
8. 4x2 -100 =0
9. 5x2 = 40

10. 3x2 -12 = 0

11. (x-5)2 =121

12. ( x + 3)2 = 9

13. x2 =32

14. (2x- 3)2 = 25

15. ( 4x – 9)2= 6

Ответ:

alove1777

13.04.2021

Mathematics

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It is the first choice.

Step-by-step explanation:

This is a sequence where

the next term is obtained by adding 6.

first term = -9 + 6(0) = -9

second term = -9 + 6(1) = -3

third term = -9 + 6(2) = 3

4th term = -9 + 6(3)  = 9  

and 81 = -9 + (6*15).

So the answer is  Sigma (-9 + 6n)  from n= 0 to n = 15.

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