Determine what Descartes’ Rule of Signs says about the number of positive and negative real roots for the polynomial function. p(x)=8^3+2x^2-14x +5
A. no positive real roots; one negative real root
B. two or no positive real roots; one negative real root
C. two or no positive real roots; no negative real roots
D. one positive real root; no negative real roots

step-by-step explanation:

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the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)

i'm sorry i don't know

step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!