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spin [16.1K]
3 years ago
15

Expand the polynomial: (5a+1/5 b)^2

Mathematics
2 answers:
GrogVix [38]3 years ago
8 0
Replaced A for X and B for Y

(25x^2)+(2xy)+(y^2/25)
WINSTONCH [101]3 years ago
3 0
Expand the following:
(5 a + b/5)^2

(5 a + b/5) (5 a + b/5) = (5 a) (5 a) + (5 a) (b/5) + (b/5) (5 a) + (b/5) (b/5):
5×5 a a + (5 a b)/5 + (5 b a)/5 + (b b)/(5×5)

(5 a b)/5 = 5/5×a b = a b:
5×5 a a + a b + (5 b a)/5 + (b b)/(5×5)

(b×5 a)/5 = 5/5×b a = b a:
5×5 a a + a b + b a + (b b)/(5×5)

Combine powers. (b b)/(5×5) = (b^(1 + 1))/(5×5):
5×5 a a + a b + b a + (b^(1 + 1))/(5×5)

1 + 1 = 2:
5×5 a a + a b + b a + (b^2/5)/5

5 a×5 a = 5×5 a^2:
5×5 a^2 + a b + b a + (b^2/5)/5

5×5 = 25:
Answer:  25 a^2 + a b + b a + (b^2/5)/5
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miss Akunina [59]

Answer:

2^3*3

Step-by-step explanation:

So the prime factorization of 24 is 24 = 2 · 2 · 2 · 3 = 23 · 3.

6 0
3 years ago
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Evaluate the function.<br> f(x) = 3x2 + 16<br> Find f(-1)
SIZIF [17.4K]

Answer:

f(-1)=19

Step-by-step explanation:

<u>Evaluating Functions</u>

Given a function y=f(x), evaluate the function for x=a means substituting the variable for the given value.

We have the function:

f(x)=3x^2+16

Find f(-1):

f(-1)=3(-1)^2+16

f(-1)=3(1)+16

f(-1)=3+16

\boxed{f(-1)=19}

4 0
3 years ago
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3 years ago
A salesperson had $240000 in sales last year,which is 60% is the sale she had this year Write an equation that finds the amount
Alenkinab [10]
A salesperson had 240,000 in sales last year.....which is 60% of the sales she had this year....
so 60% of the sales she had this year = 240,000...
0.60x = 240,000...with x being the sales she had this year
x = 240,000 / 0.60
x = 400,000 <== ur answer
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3 years ago
Could 8.8cm, 8.0cm, and 8.8cm be the side lengths of a triangle? Yes or no?
Ne4ueva [31]

Answer:

yes it could be

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