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SCORPION-xisa [38]

3 years ago

12

Train a can travel a distance of 500 miles in 8 hours assuming the train moves a a constant rate write the linear equation that

represents the situation

1 answer:

Bogdan [553]3 years ago

4 0

Answer:

Step-by-step explanation:nbfd

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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

What is the sum of 347+645=

iren [92.7K]

Answer:

347 + 645 = 992

Step-by-step explanation:

347

<u>+645</u>

922

7 0

3 years ago

2 numbers total 47 and have a difference of 21 what are the two numbers

murzikaleks [220]

x+y = 47

x-y = 21

------------ add together

2x =68 divide by 2

x=34

x+y = 47

34+ y = 47

subtract 34 from each side

y = 13

the two numbers are 34 and 13

7 0

3 years ago

Change the units up above to the correct answer from (a) to (d)

Leto [7]

Answer:

Step-by-step explanation:

1 cm = 10 mm

a) 0.1 cm = 1 mm

1 mm = 1000 m

b) 25000mm = 25 m

1 g = 0.001 kg

c) 7g = 0.007 kg

1ml = 0.000001

d) 30000ml = 0.03 kl

6 0

3 years ago

Solve the equation using logarithms<br> 3^2x-3 =4^x

Strike441 [17]

Yes your correct hope this helps

6 0

3 years ago