3 years ago

Expand and simplify (2x + 5)^2

Mathematics

2 answers:

Vilka [71]3 years ago

7 0

Answer: 4x^2 + 20x + 25

poizon [28]3 years ago

7 0

4x^2+20x+25

Explanation: Use the binomial expansion theorem to find and simplify each term.

(Hope this helps!!)

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Inessa05 [86]

Answer:

it might be 18 ❤

Step-by-step explanation:

I'm pretty sure it is 18 let me know

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2 years ago

Application of Geometric Series

Gnoma [55]

Answer:

7.2224

Step-by-step explanation:

The value of the summation is given by the formula ...

Sn = (a1)(1 -r^n)/(1 -r) . . . . . where a1 is the first of n terms, and r is the common ratio.

Your sum has first term and ratio ...

a1 = 2(0.6) . . . . . summation term for n=1

r = 0.6

So the sum is ...

$\displaystyle \sum_{n=1}^4{2(0.6^n)}=2(0.6)\dfrac{1-0.6^4}{1-0.6}=\dfrac{1.2}{0.4}(0.8704) = 2.6112$

Then the value of the entire given expression is ...

$\displaystyle 2+2\sum_{n=1}^4{}2(0.6^n)=2+2(2.6112)=\boxed{7.2224}$

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A calculator can help you find the value.

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2 years ago

A container is shaped like a rectangular solid with sides of 3 inches, 3 inches, and 11

iogann1982 [59]

It would be about 4/10 of a gallon

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3 years ago

If one angle of a parallelogram is 60 degrees, find the number of degrees in each of the remaining 3 angles?

irina1246 [14]

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3 years ago

Read 2 more answers

Given g ( x ) = 2 x + 3 , solve for x when g(x)=3.

padilas [110]

Answer:

x = 0

Step by step explanation:

g ( x ) = 2x + 3

If x = 0,

g ( 0 ) = 2 (0) + 3

or, g ( 0 ) = 3

<em>Hope that helped :)</em>

8 0

3 years ago