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3 years ago

Which of these best represents the rate of change in the volume of the gas sample with respect to the temperature

Mathematics

1 answer:

just olya [345]3 years ago

8 0

Answer: 1/12 ml

Step-by-step explanation:

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Factorize the following expression ab-a-b+1

dolphi86 [110]

Group 'em together

a b − a + 1 − b

a b − a = a ( b − 1 )

Notice that there will be a 1 as without it it'll simply be ab

1 − b = 1 ( 1 − b )

Notice that it doesn't match with the upper one... so we'll change the signs

1 ( 1 − b ) = − 1 ( b− 1 )

(try to multiply them now!!

Jot them down in one expression

a ( b − 1 ) − 1 ( b − 1 )

You get!!!!!!

( a − 1 ) ( b − 1 )

5 0

3 years ago

Thrice a number decreased by 5 exceeds twice the number by a unit find the number

viktelen [127]

Working attached below. Hope this helps! Any questions let me know :)

6 0

2 years ago

Write the sum or difference in the standard form a + bi. ( 7 + 5i) - ( -9 + i)

Veseljchak [2.6K]

(7 + 5i) - ( -9 + i)
= 7 + 5i - (-9) - (i)
= 7 + 5i + 9 - i
= 16 + 4i

= 4i + 16

3 0

3 years ago

A new park was designed to contain two circular gardens. Garden A has a diameter of 50 m, and garden B has a diameter of 70 m. T

Nastasia [14]

Answer:

$5,811.95\ m^2$ of fabric.

Step-by-step explanation:

-The amount of fabric needed is equivalent to the area of the two gardens.

-We calculate the combined areas as:

$A=A_s+A_b\\\\=\pi r^2+\pi R^2\\\\=\pi(25^2+35^2)\\\\=1850\pi \ m^2\\\\=5811.95\ m^2$

Hence, 5811.95 sq meters of fabric will be needed to cover the area of both gardens.

5 0

3 years ago

Which set of points lie on the given graph?

maks197457 [2]

The answer is B (3, 9), (1,-5), (3,3)

3 0

2 years ago

Read 2 more answers