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romanna [79]
4 years ago
7

How to solve : (s+t)^3 ​

Mathematics
2 answers:
Kay [80]4 years ago
6 0

Answer:

s^3+3s^2t+3st^2+t^3

Step-by-step explanation:

(s+t)^3\\\\\mathrm{Apply\:Perfect\:Cube\:Formula}:\\\quad \left(a+b\right)^3=a^3+3a^2b+3ab^2+b^3\\\\a=s,\:\:b=t\\=s^3+3s^2t+3st^2+t^3

DiKsa [7]4 years ago
4 0

Step-by-step explanation:

Hey there!

Here, given;

( {s + t)}^{3}

<u>Use</u><u> </u><u>formula</u><u>:</u><u> </u>

<u>( {a + b)}^{3}  =  {a}^{3}  + 3 {a}^{2}b + 3a {b}^{2}   +  {b}^{3}</u>

<u>Keep</u><u> </u><u>this</u><u> </u><u>formula</u><u> </u><u>in</u><u> </u><u>the</u><u> </u><u>question</u><u>. </u>

<u>( {s + t)}^{ 3}  =  {s}^{3}  + 3 {s}^{2} t + 3s {t}^{2}  +  {t}^{3}</u>

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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How many tenths are there in four fifths?
sleet_krkn [62]

So to find how many tenths, or 1/10's, there are in four fifths, or 4/5, divide 4/5 by 1/10.

\frac{4}{5} \div \frac{1}{10}

Now, remember that <u>dividing by a number is equivalent to multiplying by its reciprocal</u>. To find the reciprocal, just flip the numerator and denominator around. In this case, 1/10 would become 10/1. Flip 1/10 to its reciprocal, change the sign to multiplication, and multiply numerators with numerators and denominators with denominators:

\frac{4}{5}\times \frac{10}{1}=\frac{40}{5}=8

<u>In short, there are 8 tenths in four fifths.</u>

5 0
3 years ago
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laiz [17]

Answer: \dfrac{76}{89}

Step-by-step explanation:

The pool of rats from which the researcher is drawing participants is composed of the following:

23 male albino rats

21 male spotted rats

35 female albino rats

11 female spotted rats

Total rats = 23+21+35+11 =90

P(male\ albino)=\dfrac{23}{90}

After drawing first rat , total rats remained = 89

P(\text{either a female albino rat or a male spotted rat})=\dfrac{35+21}{89}=\dfrac{76}{89}

The probability of choosing a male albino rat and then either a female albino rat or a male spotted rat = \dfrac{76}{89}

7 0
3 years ago
Help me pls i’ll give you a kiss
Likurg_2 [28]

Answer: 152.46 squared centimeters.

Step-by-step explanation:

  1. The equation to find the area of the trapezoid is A = ½ (6.6 + 16.5) 13.2
  2. Distribute ½ into (6.6 + 16.5) . A = (3.3 +  8.25) 13.2.
  3. Add the numbers inside the parenthesis. A =  11.55 * 13.2
  4. Multiply 11.55 * 13.2.   A = 152.46.
3 0
4 years ago
What are the possible rational zeros of f(x) = x4 + 2x3 − 3x2 − 4x + 20? (1 point)
Montano1993 [528]

The <u>possible rational zeros</u> of <u>polynomial function</u> f(x) = x^4 + 2x^3 - 3x^2-4x + 20 could be only among the <u>divisors</u> of the <u>free term</u> of this polynomial function.

The free term is 20 and the divisors of 20 are:

\pm 1, \pm 2, \pm 4, \pm 5, \pm 10, \pm 20.

Answer: correct choice is C

7 0
4 years ago
<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B5x%2B3" id="TexFormula1" title="x^{2} +5x+3" alt="x^{2} +5x+3" align="absmidd
il63 [147K]
<h3>x²+5x+3+2x²+10x15 =0</h3><h3>x²+2x²+5x+10x+3+15=0</h3><h3>3x²+15x+18=0</h3><h3>3(x²+5x+6) =0 because 3 is common factor</h3><h3>3(x²+3x+2x+6) spill the middle term</h3><h3>3(x(x+3)+2(x+3) take the common factor from term</h3><h3>3(x+2) (x+3)</h3>

<h3>answer is 3(x+2) (x+3)</h3>

please mark this answer as brainlist

3 0
3 years ago
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