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1 year ago

Name the property shown and explain

Mathematics

1 answer:

Alika [10]1 year ago

5 0

The distributive property is being used because a is being distributed to b and c, which leaves you with ab + ac

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A solution with a pH of 11 has a [H+] of: 11 1 x 10-3 1 x 10-11 1 x 1011 1 x 103

serious [3.7K]

A solution with a pH of 11 has a [H+] of $1.0\times 10^{-11}$

Option B is correct option.

Step-by-step explanation:

A solution with a pH of 11 has a [H+] of= ?

pH=?

Concentration of H+ [H+]= ?

Formula used: $pH=-log[H+]$

Putting values and finding [H+]

$pH=-log[H+]\\\,[H+]\,=10^{-pH}\\\,[H+]\,=10^{-11}\\\,[H+]\,=1.0\times 10^{-11}$

So, A solution with a pH of 11 has a [H+] of $1.0\times 10^{-11}$

Option B is correct option.

4 0

4 years ago

2. Ali is collecting signatures for a petition,

swat32

Step-by-step explanation:

Since the options are not clear enough, please kindly see the attached file for more explanation

7 0

4 years ago

Find the area of the shape below

maks197457 [2]

Answer:

204 ft^2

Step-by-step explanation:

triangle on the left:

A= l x w x 1/2

A = 12 x 5 x 1/2

A = 30 ft^2

triangle on the right:

Same thing

A = 30 ft^2

square in the middle:

A = l x w

A = 12 x 12

A = 144 ft^2

Add them up:

30 + 30 + 144 = 204 ft^2

3 0

3 years ago

Which point is a solution to y<4x+5

Alla [95]

Answer:

(1,-1)

Step-by-step explanation:

y < 4x+5

x = 1, y = -1 => -1 < -4+5 (T)

3 0

3 years ago

A rectangle has a length of 3x + 7 and a width of 2x. If the perimeter of the

Art [367]

Answer:

The length of the rectangle is 31.

Step-by-step explanation:

We have that the length (L) and width (W) are:

$L = 3x + 7$

$W = 2x$

The perimeter of the rectangle is given by:

$P = 2W + 2L$

$94 = 2(2x + 3x + 7)$

$94 = 10x + 14$

$x = 8$

Now, we can calculate the length of the rectangle:

$L = 3x + 7 = 3*8 + 7 = 31$

Therefore, the length of the rectangle is 31 units.

I hope it helps you!

7 0

3 years ago