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3 years ago

Is -6.5 a rational number. pls idk and I really need help

Mathematics

2 answers:

lara [203]3 years ago

7 0

Answer:

-6.5 is a rational number.

Mariulka [41]3 years ago

5 0

Answer:

it is!!

Step-by-step explanation:

it terminates after the tenths place, therefore, it can be made into a terminating decimal, which means its rational!! can i maybe get brainliest :D at least a thanks or a rating :D

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Solve for x……………………….

Jobisdone [24]

Answer:

Step-by-step explanation:

Find other side:

116 + x = 180

-116 -116

------------------

x = 64

Find missing triangle angle:

50 + 64 + x = 180

114 + x = 180

-114 -114

-------------------

x = 66

Hope this helped.

4 0

3 years ago

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Can someone help me with this one plz

natali 33 [55]

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2 years ago

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Which decimal is between 6.4 and 6.6? A.) 6.04 , B.) 6.44 , C.) 6.60 , or D.) 6.06

m_a_m_a [10]

B 6.44 because 6.4 is equal to 6.40 and in between 6.40 and 6.60 there is 6.44.

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3 years ago

For what values of $x$ is it true that $x^2 - 5x - 4 \le 10$? Express your answer in interval notation.

dybincka [34]

Answer:

x ∈ [-2, 7]

Step-by-step explanation:

The given equation ...

x^2 -5x -4 ≤ 10

can be rewritten as ...

x^2 -5x -14 ≤ 0

and factored as ...

(x +2)(x -7) ≤ 0

Clearly, the "or equal to" condition will be met when x=-2 and x=7. For values of x between these numbers, one factor is negative and the other is positive. Hence the product will be negative. So, numbers in that interval are the solution set.

x ∈ [-2, 7]