Round 674,392 to the nearest hundred.

a. 674,400

b. 700,000

c. 674,390

d. 670,000

A.

Step-by-step explanation:

Since you are rounding to the nearest hundred, you have to determine whether 392 is closer to 400 or 300, and since it is closer to 400, you will have . The in the tens place tells you to round up to the next hundred up.

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x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

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step-by-step explanation: