4 years ago

Helpppp I can’t find the answer( 19 only)

Mathematics

1 answer:

lakkis [162]4 years ago

3 0

Answer:

10 plus -4

Step-by-step explanation:

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One number is 6 more than anouther number. the sum of their squares is 90

Flura [38]

Let x = greater number
      y = smaller number

(1) $x = y + 6
$
(1) $y = x-6$

(2) $x^{2} + y^{2} = 90$
We'll substitute y in (1) to (2)
(2) $x^{2} + (x-6)^{2} = 90$
   $x^{2} + (x^{2} - 12x + 36) = 90$
   $x^2 + x^2 -12x + 36 - 90 = 0$
   $2x^2 - 12x -54 = 0
$
   $2(x^2 - 6x - 27) = 0$
   $2(x - 9)(x + 3) = 0$
x - 9 = 0 or x + 3 = 0
      x = 9 x = -3
and
y = x - 6 y = x - 6
y = 9 - 6 y = -3 - 6
y = 3 y = -9

Therefore, the two numbers can be 9 and 3 or -3 and -9.

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4 years ago

What type of number is 12: + 360?<br>Choose all answers that apply:<br>Real<br>Imaginary<br>Complex

mestny [16]

Answer:

Imaginary

Step-by-step explanation:

5 0

3 years ago

Find the probability pulling a Cub suited card from a deck of playing cards.

Artemon [7]

The probability of drawing a club is 13/52. The probability of drawing a face card is 12/52. However, three of the clubs are also face cards, so there are only 22 of the 52 cards that are either clubs or face cards.

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3 years ago

Read 2 more answers

What value of x is in the solution set of -5x - 15 > 10 + 20x?

Vaselesa [24]

Answer:

-5x - 15 > 10 + 20x

-5x - 20x > 10+15

-25x > 25

-x > 25/25

-x > 1

x < -1