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3 years ago

Please answer fast!!!!!! The question is in the attached picture...

Mathematics

2 answers:

ehidna [41]3 years ago

8 0

Answer:

Below,...

Step-by-step explanation:

O.7 = Rational Number

-13/18 = Rational Number

-1.7 = Rational Number

11.28 = Rational Number

25 = Rational Number

$\sqrt{5}$ = NOT a Rational Number

Chow,...!

natka813 [3]3 years ago

6 0

The answer is 5^2 because its a whole number

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What two numbers multiply to 54 and add up to 7

k0ka [10]

Xy = 54
x + y = 7

$xy = 54$
$\frac{xy}{x} = \frac{54}{x}$
$y = \frac{54}{x}$

$x + y = 7$
$x + \frac{54}{x} = 7$
$\frac{x^{2}}{x} + \frac{54}{x} = 7$
$\frac{x^{2} + 54}{x} = 7$
$x^{2} + 54 = 7x$
$x^{2} - 7x + 54 = 0$
$x = \frac{-(-7) \± \sqrt{(-7)^{2} - 4(1)(54)}}{2(1)}$
$x = \frac{7 \± \sqrt{49 - 216}}{2}$
$x = \frac{7 \± \sqrt{-167}}{2}$
$x = \frac{7 \± i\sqrt{167}}{2}$
$x = \frac{7 \± 12.9i}{2}$
$x = 3.5 \± 6.45i$
$x = 3.5 + 6.45i$ $or$ $3.5 - 6.45i$

x + y = 7
3.5 + 6.45i + y = 7
- (3.5 + 6.45i) - (3.5 + 6.45i)
y = 3.5 - 6.45i
  (x, y) = (3.5 + 6.45i, (3.5 - 6.45i)

  or

  x + y = 7
3.5 - 6.45i + y = 7
- (3.5 - 6.45i)   - (3.5 - 6.45i)
y = 3.5 + 6.45i
(x, y) = (3.5 - 6.45i, 3.5 + 6.45i)

The two numbers that add up to 7 and can multiply to 54 is 3.5 ± 6.45i.

5 0

4 years ago

The high temperature on Monday in Alaska was -2 degrees. Tuesday's high temperature was 3 degrees lower than Monday's. What was

oee [108]

Answer:

The answer is B) -5

Step-by-step explanation:

It is -5 because if you take monday's temperature and subtract it by tuesday's temperature. You get -5

-2-3=-5

3 0

3 years ago

10 tens and 10 ones equals

jenyasd209 [6]

Answer:

110 is the answer because 10 tens equal 100 and 10 ones equal 10

Step-by-step explanation:

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3 years ago

The degree of the polynomial below .

Stella [2.4K]

Answer:

C: 9

Step-by-step explanation:

The highest power in the polynomial is 9.

3 0

3 years ago

I need help with number 15,16,and 17

777dan777 [17]

15. A=7, 16. V=9, 17. D=26

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3 years ago