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3 years ago

What is the answer to -2ab +ab+ 9ab-3ab ???

2 answers:

5 0

I think its 5ab, I think this because -2ab + ab would give you -1ab, then adding 9ab would give you 8ab, finally -3ab would give you 5ab.

Lady_Fox [76]3 years ago

4 0

$-2ab +ab+ 9ab-3ab=5ab$

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JoAnn is taking a trip to visit her family. After one day of driving, she has traveled 315.2 miles. If JoAnn lives 510 miles fro

Elena L [17]

Answer:

194.8 miles

Step-by-step explanation:

510 - 315.2 = 194.8

Hope this helps!

8 0

3 years ago

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ehidna [41]

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4 years ago

Factor: 100x^2- 81

Alex17521 [72]

Answer:

Choice 'D' (10x + 9) (10x-9) is the correct answer

Step-by-step explanation:

100x^2 - 81

This is a difference of squares...

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3 years ago

The discriminant of a quadratic equation is equal to -8, which statement describes the roots?

Maslowich

Answer:

(a) There are two complex roots

Step-by-step explanation:

The discriminant of a quadratic function describes the nature of its roots:

negative: two complex roots
zero: one real root (multiplicity 2)
positive: two distinct real roots.

Your discriminant of -8 is negative, so it indicates ...

There are two complex roots

_____

Additional comment

We generally study polynomials with real coefficients. These will never have an odd number of complex roots. Their complex roots always come in conjugate pairs.

6 0

2 years ago

Write a variable expression for 4 fewer than a number s.

rjkz [21]

S - 4

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8 0

3 years ago