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Lilit [14]
3 years ago
9

What is the most logical first step in solving the equation x2+6x+9=10?

Mathematics
1 answer:
valentina_108 [34]3 years ago
5 0
You need to make the right side = 0  
To do this  you subtract 10 from both sides of the equation:-

x^2 + 6x + 9 - 10 = 10 - 10
x^2 + 6x - 1 = 0 
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¿es cierto que si se suman los resultados de la tabla del con los de la tabla del 5 se obtienen los resultados del 7 ¿porque
SSSSS [86.1K]

Answer:

Efectivamente, si se suman los resultados de la tabla del 2 con los de la tabla del 5 se obtienen los resultados de la tabla del 7.

Step-by-step explanation:

Esto es así porque 7 puede formarse a través de diversas sumas (7+0, 6+1, 5+2 o 4+3). Por ende, en el caso de las tablas de multiplicaciones, decir, por ejemplo, 7 x 3, es igual a decir 5 x 3 + 2 x3, dado que 5 + 2 es igual a 7.

Entonces, siguiendo el ejemplo, dado que 7 x 3 es igual a 21, la suma de 5 x 3 igual a 15 y 2 x 3 igual a 6 es 21 (15 + 6), con lo cual la afirmación es correcta.

5 0
3 years ago
Han buys an item with a normal price of $15.
KiRa [710]

Answer:

$1.50

Step-by-step explanation:

15*.10=1.50

4 0
3 years ago
Find the value of a in the parallelogram.
S_A_V [24]
6a-4 = 3a+54
3a = 58
a = 58/3
a= 19.333
3 0
2 years ago
It is estimated that approximately 10.5% of Americans are afflicted with diabetes. Suppose that a new diagnostic test is being c
Alla [95]

Answer:

0.03

Step-by-step explanation:

Percentage of americans with diabetes = 10.5% = 0.105

Percentage of americans without diabetes = 89.5% = 0.895

Adults over 40 with diabetes tested positive = 95% = 0.95

Adults over 40 with diabetes tested negative = 5% = 0.05

Adults over 40 without diabetes tested positive = 3.5% = 0.035

Adults over 40 without diabetes tested negative = 96.5% = 0.965

The probability of selecting an adult over 40 without diabetes but positive diagnosis;

     = 0.895 * 0.035

     = 0.031325

     = 0.03

5 0
3 years ago
Please someone in the world help me
defon
The answer is C. 60. If you add 14+19+16+11 it equals 60.
4 0
3 years ago
Read 2 more answers
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