4 years ago

Find the roots of the function 8x^2+20=148

Mathematics

2 answers:

weqwewe [10]4 years ago

5 0

Answer:

it's B +/-4

Step-by-step explanation:

erastova [34]4 years ago

3 0

Answer: +/- 4

Step-by-step explanation:

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If f(x) = 1 -x and g(x) = 1-X which is the rule of function (f-g)(x)?

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Marta said that she would complete the table of equivalent ratios by adding 2 to each number in the x and y rows to find the nex

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A. Marta should have plotted the ordered pairs that were given and then, starting with the last point, moved up 3 and right 2 to find each next point.

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Y=15 + x what is the ordered pair?

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Step-by-step explanation:

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3 years ago

Find the product of the polynomials,<br> (In + 1) (2n + 6)

lakkis [162]

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3 years ago

For a given geometric sequence, the 9th term, a9, is equal to 43/256 and the 14th term, a14, is equal to 172. Find the value of

EastWind [94]

Answer:

$18th=44032$

Step-by-step explanation:

From the question we are told that:

9th term $a9=\frac{43}{256}$

14th term $a14=172$

Generally the equation for Geometric sequence is mathematically given by

$a_n=a_1r^{n-1}$

For 9th term

$\frac{43}{256}=a_1r^{8}$

For 14th term

$172=a_1r^{13} \\a_1=\frac{172}{r^13}$

Substitute in 9th term

$\frac{43}{256}=\frac{172}{r^13}*r^{8}$

$\frac{43}{256*172}=r^{-5}$

$r=^5sqrt{\frac{44032}{43}}$

$r=4$

Therefore First term a is given as

$a_1=\frac{172}{4^13}$

$a_1=2.563*10^{-6}$

Generally the equation for the 18th term is mathematically given by

$18th=a_1r^{17}$

$18th=2.563*10^{-6}*4^{17}$

$18th=44032$

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3 years ago