3 years ago

Plz help me fast plz

Mathematics

2 answers:

rusak2 [61]3 years ago

8 0

Answer:

Step-by-step explanation:

allochka39001 [22]3 years ago

7 0

Answer:

13. i may be wrong im not sure

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Step-by-step explanation:

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Find the value of a and of b for which<br>(a) the solution of x2 + ax < b is<br>-2<x < 4

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Step-by-step explanation:

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$x^{2} +ax$

re - writing the equation , we have

$x^{2} +ax-b$

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sum of roots = -2 + 4 = 2

product of roots = -2 x 4 = -8

substituting into the formula , we have:

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2 years ago

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9514 1404 393

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67.0 square units

Step-by-step explanation:

The formula for the area is ...

Area = 1/2ab·sin(C)

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The area of the triangle is about 67.0 square units.

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