3 years ago

Which equation can be solved using the expression -3 plus or minus the square root of (3)^2+4(10)(2)/2(10) for x?

Mathematics

1 answer:

monitta3 years ago

5 0

Answer: B. 2=3x+10x^2

Step-by-step explanation:

The expression means the quadratic function equation.

B = 10x^2 + 3x -2 = 0

the equation is [-b ±√(b^2 -4ac)]/2a

b should be +3 to become -3 when it is plugged into the equation, and 'a' should be 10, and c should be -2.

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3 0

3 years ago

Read 2 more answers

Ignore the highlighted ones please thxs

denis23 [38]

I believe it’s D. 2/3

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What is the value, to the nearest tenth, of 15 x 3 - 12 x 2 when x = 2.5

Alekssandra [29.7K]

Answer:

159.4

Step-by-step explanation:

I'm assuming that it's supposed to be 15x^3-12x^2 because when you copy and paste the "^" gets cut out

15*2.5^3 - 12*2.5^2 = 234.375 - 75 = 159.375

rounded is 159.4

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3 years ago