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3 years ago

13

What is 5^-3?

2 answers:

vampirchik [111]3 years ago

7 0

Answer: 1/125 or 0.008 (simplify 1.125 or should I do it?)

Step-by-step explanation:

Well, when there is a negative sign in the exponent you only move the negative exponents. Moving only negative exponents is recommended because using this rule, you multiply two exponents with the same base and add their powers.

olga_2 [115]3 years ago

5 0

1/15

You take out the negative and do the regular equation but turn it into the fraction with one as the numerator and the solution of the exponent as the denominator.

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steposvetlana [31]

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3 years ago

Help please ! <br> Evaluate f(-1) using substitution f(x)=2x^3-3x^2-18x-8

statuscvo [17]

Answer:

5

Step-by-step explanation:

$f(x) = 2x^3 - 3x^2 -18x - 8\\f(-1) = 2 (-1)^3 - 3(-1) ^2 -18(-1) -8\\f(-1) = 2(-1) -3(1) -18(-1) -8\\f(-1) = -2 -3+18 -8\\f(-1) = 5$

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3 years ago

One of the peptides that can be recovered after gluten digestion is 33 residues long; 13 of the 33 residues are proline. How man

Hunter-Best [27]

Answer:

It's expected that proline would appear between once or twice.

Step-by-step explanation:

If it were made up of a random assortment of amino acids, each amino acid can have:

$\frac{1}{20}$ chance of being in any particular place in the sequence.

Therefore, Proline has a $\frac{1}{20}$ chance of being in each place.

We've got 33 places,

So if we can multiply the places we've got times the chances and we get:

$33*\frac{1}{20} = \frac{33}{20}$ or 1.65

Therefore it's expected that proline would appear between once or twice.

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3 years ago

What's 32851 to the nearest hundred

Tema [17]

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4 years ago

Read 2 more answers

What is the simplified expression for 3a^2+9ab+5-4a^2-4ab +3?

seraphim [82]

Answer:

$-4a^2+4ab+8$

Step-by-step explanation:

our expression is

$3a^2+9ab+5-4a^2-4ab+3$

we are asked to simplify the expression

in order to that we first bring the like terms together

like terms are those having the same variable or same combination of variables with exactly same degrees

Hence it would be like

$3a^2-4a^2+9ab-4ab+5+3$

now we simplify the like terms

$3a^2-4a^2=-4a^2$

$9ab-4ab=4ab$

$5+3=8$

Hence

$3a^2-4a^2+9ab-4ab+5+3=-4a^2+4ab+8$

4 0

4 years ago

Read 2 more answers