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klio [65]
2 years ago
12

Find the second term of the binomial expansion (a-1)^3

Mathematics
1 answer:
gtnhenbr [62]2 years ago
6 0

Answer:

(a - 1) ^{3}  \\  {a}^{3}  -  {1}^{3}  \\ a  {}^{3 }  - 1

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what is the coeffcient of a term that consists of a single variable?For example,what is the coefficient of x
Viktor [21]
1 easy
x=1x

if you have a cow, how many do you have? 1

if ou have an x, how many do you have? 1

1 is coeficinet
6 0
2 years ago
Write a formula for quadratic function if its graph has the vertex at point (0,6) and passes through the point (−1,−2).
d1i1m1o1n [39]

Answer:

y = - 8x² + 6

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (0, 6), thus

y = a(x - 0)² + 6, that is

y = ax² + 6

To find a substitute (- 1, - 2) into the equation

- 2 = a(- 1)² + 6, that is

- 2 = a + 6 ( subtract 6 from both sides )

- 8 = a

y = - 8x² + 6

4 0
2 years ago
Erica watched 2.7 miles to and from work every day for an entire year how many miles did he walk
Len [333]
2.7 • 2 because it’s twice a day. He’s waking 5.4 miles daily, 5.4 • 360 = 1,944 miles yearly.
7 0
3 years ago
Multiply factor 8(x-3y)(x+3y) to determine the original polynomial
Inessa [10]
If I'm doing this correctly, you would need to multiply everything inside the parenthesis by 8. So it would be 8x-24y·8x+24y. I'm sorry if that's not right, but that is my interpretation of the problem. Hope I was of some assistance :)
4 0
2 years ago
Read 2 more answers
If ethans monthly expenses are 1160 and his debt to income ratio is 0.8 what is his monthly salary
lukranit [14]

Answer:

\(1450\)

Step-by-step explanation:

Based on the given conditions, formulate: \frac{1160}{0.8}

Convert decimal to fraction:\(\dfrac{1160} {\dfrac{8}{10}}\)

Divide a fraction by multiplying its reciprocal:\(1160 \times \dfrac{10}{8}\)

Cross out the common factor: \(145 \times 10\)

Calculate the product or quotient: \(1450\)

get the result: \(1450\)

Answer: \(1450\)

7 0
2 years ago
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