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3 years ago

Is -7.8 an irrational number

Mathematics

2 answers:

topjm [15]3 years ago

6 0

Answer:

No.

Step-by-step explanation:

An irrational number has never-ending decimals.

A rational number can be written as a fraction or has a terminating decimal.

-7.8 can be rewritten into a fraction. Its decimal also terminates. Therefore, it is not irrational but rational.

pshichka [43]3 years ago

6 0

Answer:

-7.8 is rational

Step-by-step explanation:

irrational numbers are nubers that repaet random numbers that you wont know what comes next like pi or the squar root of 2. hope this halps and can you take in consideration of giving me a brainliest? Thank you

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marin [14]

Answer: 9−27

Step-by-step explanation:

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3 years ago

Write the quadratic equation whose roots are 2 and -4 and whose leading coefficient is 2

Goryan [66]

Answer:

2x^2+4x-16

Step-by-step explanation:

The quadratic can be written as

f(x) = a(x-z1)(x-z2) where z1 and z2 are the roots

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a is the leading coefficient

f(x) = 2(x-2)(x+4)

= 2(x^2 -2x+4x-8)

= 2(x^2 +2x-8)

= 2x^2 +4x-16

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3 years ago

Marking brainliest...

anastassius [24]

Answer:

Step-by-step explanation:

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2 years ago

I would love some help pls, if anyone could talk me through it, that would be phenomenal I have no clue what’s going on lol

maks197457 [2]

Answer:

B) 7x - 3 = 4

Step-by-step explanation:

3x - 12 = -9

3x = 3

x = 1

A) NOPE

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B) YES

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3 years ago

Solve the inequality

Lina20 [59]

Your answer is C.)x<2

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3 years ago

Read 2 more answers