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3 years ago

Pls help A.S.A.P need now!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

valkas [14]3 years ago

6 0

Answer:

Step-by-step explanation:

Put 4 where x is and evaluate.

... f(4) = 3·4² -2·4

... f(4) = 3·16 - 8

... f(4) = 48 - 8 = 40

erma4kov [3.2K]3 years ago

3 0

Replace x with 4 and solve it

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4 years ago

Solve X^2 - 3x - 10 = 0 by using the quadratic formula

stiv31 [10]

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Answer:

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Taya2010 [7]

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Step-by-step explanation:

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3 years ago

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Evaluate the summation of 3 times negative 2 to the n minus 1 power, from n equals 1 to 5.

Zanzabum

The answer is <span>C.33
</span>
3 * (-2)ⁿ⁻¹
n = 1; 3 * (-2)¹⁻¹ = 3 * (-2)⁰ = 3 * 1 = 3
n = 2; 3 * (-2)²⁻¹ = 3 * (-2)¹ = 3 * (-2) = -6
n = 3; 3 * (-2)³⁻¹ = 3 * (-2)² = 3 * 4 = 12
n = 4; 3 * (-2)⁴⁻¹ = 3 * (-2)³ = 3 * (-8) = -24
n = 5; 3 * (-2)⁵⁻¹ = 3 * (-2)⁴ = 3 * 16 = 48

The sum is:
3 + (-6) + 12 + (-24) + 48 = 3 - 6 + 12 - 24 + 48 = 33

7 0

3 years ago

PLEASE HELP IM ON A DEADLINE

Tanya [424]

Answer:

Does not exist

Step-by-step explanation:

$\sum _{n=1}^{\infty \:}(\frac{5n^5}{4n^5+5})$

Apply the divergence test.

$\lim_{n \to \infty} (\frac{5n^{5}}{4n^{5}+5})$

⇒ diverges

If an infinite series is a divergent sequence, <u>it has no limit.</u>

~Hope this helps!~

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3 years ago