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3 years ago

I can't solve this please help me

Mathematics

1 answer:

murzikaleks [220]3 years ago

7 0

If you put a picture, Its not showing up. If not, what cant you solve?

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What is the sum of E n=1 2/3 (1/4) n-1? S = 4/9 S = 8/9 S = 4/3 S = 8/3

trasher [3.6K]

Answer:

You are right. The answer is 8/9 or B.

Step-by-step explanation:

7 0

2 years ago

HELP I NEED HELP ASAP

erma4kov [3.2K]

Answer:

Step-by-step explanation:

It is the change in time

3 0

3 years ago

Select the polynomial that is a perfect square trinomial. 36x2 − 4x 16 16x2 − 8x 36 25x2 9x 4 4x2 20x 25.

Naya [18.7K]

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

The given polynomial is

$a) 36x^2-4x+16$

What is the form of perfect square polynomial?

$(ax+b)^2$

we solve this method by using perfect square method

add and subtract 1/9

$36x^2-4x+16+\frac{1}{9}-\frac{1}{9}$

factor 36

$\frac{143}{9}+36(x^2-\frac{x}{9}+\frac{1}{324} )$

Now complete the square

$\frac{143}{9}+36(x^2-\frac{1}{18})^2$

Therefore this is not perfect square trinomial.

Similarly for

$b) 16x^2-8x+36$

Complete square is,

$16(x-\frac{1}{4})^2+35$

This polynomial is also not perfect square trinomial.

$c) 25x^2+9x+4\\$

complete square is,

$25(x+\frac{9}{50})^2+\frac{319}{100}$

This polynomial is not perfect square trinomial.

$d)4x^2+20x+25\\$

complete square is,

$(2x+5)^2$

This polynomial is perfect square trinomial.

Therefore,

The polynomial a,b,c,are not perfect square polynomial and the polynomial d is perfect square polynomial.

To learn more about perfect square trinomial visit:

brainly.com/question/1538726

3 0

2 years ago

George invited 65 students in his school to volunteer at a charity race. 39 of the students signed up to volunteer. What percent

Natali5045456 [20]

39 is 60% of 65.
Hope it helps!

6 0

3 years ago

Read 2 more answers

An urn contains 7 red marbles and 3 white marbles. three marbles are drawn from the urn one after the other. find the probabilit

vaieri [72.5K]

7+3 = 10 total marbles

1st pick = 7/10 for a red one

2nd pick = 6/9 reduces to 2/3 for a red one

3rd pick = 3/8 for a white one

7/10 x 2/3 =14/30 reduces to 7/15

7/15 x 3/8 = 21/120 reduces to 7/40

probability = 7/40

5 0

3 years ago