Is -√9 an irrational or rational number?please help!

Mathematics

2 answers:

jonny [76]2 years ago

6 0

Answer:

Irrational Number

Step-by-step explanation:

Irrational number: A number that can't be written as a fraction.

- Non Recurring numbers, and non terminating numbers fall into the irrational category

lianna [129]2 years ago

3 0

Answer:

no it is not

Step-by-step explanation:

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[tex]\sqrt{49} please answer correctly

Nookie1986 [14]

Answer:

Um.. well I don't know what is your question, but I think you meant square root and the answer is 7 because it is a perfect square.

Step-by-step explanation:

7 0

2 years ago

Solve the following system of equations algebraically: y = x^2+7x−4 y = −x−4

oksian1 [2.3K]

Y = x² + 7x - 4
y = -x - 4

x² + 7x - 4 = -x - 4
+ x + x
x² + 8x - 4 = -4
+ 4 + 4
x² + 8x = 0
x(x) + x(8) = 0
x(x + 8) = 0
x = 0 or x + 8 = 0
   - 8 - 8
x = -8

  y = -x - 4
  y = -0 - 4
  y = 0 - 4
  y = -4
(x, y) = (0, -4)
or
y = -x - 4
y = -(-8) - 4
y = 8 - 4
y = 4
(x, y) = (-8, 4)

The solutions are (0, -4) and (8, -4).

7 0

3 years ago

Read 2 more answers

Solve using a proportion.

Advocard [28]

Answer:

t = 24 yards

Step-by-step explanation:

Since the trapezoids are similar then the ratios of corresponding sides are equal, that is

$\frac{t}{c}$ = $\frac{u}{d}$