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kow [346]
3 years ago
5

The (minmum or maximum) value is __? Can someone help me please, thank you

Mathematics
1 answer:
masha68 [24]3 years ago
8 0

Answer:

-1 ,+1 i hope it helps mark me as brainliest

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Marking brainliest!!!!
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3 years ago
Find an equation for the nth term of a geometric sequence where the second and fifth terms are -21 and 567, respectively
oksano4ka [1.4K]

Answer:

x_n=7(-3)^{n-1}

Step-by-step explanation:

First, write some equations so we can figure out the common ratio and the initial term. The standard explicit formula for a geometric sequence is:

x_n=ar^{n-1}

Where xₙ is the nth term, a is the initial value, and r is the common ratio.

We know that the second and fifth terms are -21 and 567, respectively. Thus:

a_2=-21\\a_5=567

Substitute them into the equations:

x_2=ar^{(2)-1}\\-21=ar

And:

a^5=ar^{(5)-1}\\567=ar^4

To find a and r, divide both sides by a in the first equation:

r=-\frac{21}{a}

And substitute this into the second equation:

567=a(\frac{-21}{a} )^4

Simplify:

567=a(\frac{(-21)^4}{a^4})

The as cancel out. (-21)^4 is 194481:

\frac{567}{1}=\frac{194481}{a^3}

Cross multiply:

194481=567a^3\\a^3=194481/567=343

Take the cube root of both sides:

a=\sqrt[3]{343} =7

Therefore, the initial value is 7.

And the common ratio is (going back to the equation previously):

r=-21/a\\r=-21/(7)\\r=-3

Thus, the common ratio is -3.

Therefore, the equation is:

x_n=7(-3)^{n-1}

5 0
3 years ago
NEED HELP ASAP<br>ALGEBRA 2 ​
Tema [17]

Answer:

4.9

Step-by-step explanation:

2√6=4.89897948557

4.89897948557 ≈ 4.9

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3 years ago
Read these sentences from the text:
pantera1 [17]

Answer:

Water trapped in the crevices of a plant, in combination with warm temperatures, is a breeding ground for bacterial and fungal growth. "Some plants called epiphytes, or air plants, have adapted to get nutrients from the air. Some examples of epiphytes in rainforests are mosses, lichens, and orchids.

Step-by-step explanation:

4 0
2 years ago
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