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san4es73 [151]
3 years ago
12

The pH scale measures how acidic or basic a substance is. Bleach is said to have a pH of less than 14 and greater than 11. Model

the normal range of pH values of bleach, using a compound inequality. 11 > x > 14 11 < x < 14 11 ≤ x ≤ 14 11 ≥ x ≥ 14
Mathematics
2 answers:
Fiesta28 [93]3 years ago
7 0

Answer:

11 < x < 14

Step-by-step explanation:

<em>Bleach is said to have a pH of less than 14 and greater than 11.</em>

Let x = pH

First, we will consider individual inequalities.

  • Given x is greater than 11, 11 < x (this means that x takes values higher than 11, but not 11).
  • Given x is less than 14, x < 14 (this means that x takes values lower than 14, but not 14).

If we take both inequalities, we can set up a compound inequality: 11 < x < 14.

Harrizon [31]3 years ago
4 0

Answer:

The answer to your question is:     11 < pH < 14

Step-by-step explanation:

Data

Bleach have a pH  less than 14 and greater than 11.

We have to use these symbols:

                                                     <  greater than       >  less than

and pH will be  in the middle

                                          11 < pH < 14

This inequality means the Bleach has a pH between 11 and 14

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Answer:

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Step-by-step explanation:

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7 0
3 years ago
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sergeinik [125]
Answer:

200.96 yd^2

Step-by-step explanation:

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6 0
3 years ago
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sam is making a project out of wood. he needs a board that is 2 3/4 feet long. he has a board that is 3 1/8 feet long. how much
damaskus [11]

Answer:

3/8

Step-by-step explanation:

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3 0
3 years ago
Justin Verlander of the Astros threw a pitch 100 miles per hour. How many seconds did it take to get to home plate. The plate is
castortr0y [4]

It will take 0.4 seconds to get to the home plate.

Given:

The speed of the pitch thrown by Justin is 100 miles per hour

The distance of home plate from the pitching rubber is 60.5 feet

To find:

The time taken by a pitch to reach the home plate

Solution:

The distance home plate from the pitching rubber = d = 60.5 feet

1 mile = 5280 feet\\1 foot=\frac{1}{5280} mile\\60.5 feet=60.5 \times \frac{1}{5280} mile=\frac{60.5}{5280}miles

The speed of pitch thrown by Justin = s = 100 miles/hr

The time taken by a pitch to reach the home plate = t =?

The speed of the moving object is given by dividing the distance covered from the time taken to cover that distance.

Speed=\frac{Distance}{Time}\\s=\frac{d}{t}\\100 miles/hr=\frac{\frac{60.5}{5280}miles}{t}\\t=\frac{60.5}{5280}miles\times \frac{1}{100 miles/hr}\\= 0.000114583 hr

In an hour there are 3600 seconds, then in 0.000114583 hours will be:

1 hour=3600 seconds\\=0.000114583 \times 3600=0.4124988 s\approx 0.4 s

It will take 0.4 seconds to get to the home plate.

Learn more about conversions here:

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brainly.com/question/17743460

5 0
3 years ago
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REY [17]

Answer:

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The longer side piece of fabrics = (x + 2) = 10 feet

Step-by-step explanation:

Total yards of fabrics = 6 yards

you need to cut it in two pieces where one is two feet longer than the other.

First piece= x feet

Second piece= x+2 feet

Convert 6 yards to feet

6 yards = 18 feet

First piece + second piece = total piece of fabrics

x + (x+2) = 18

x + x + 2 = 18

2x + 2 = 18

2x = 18 - 2

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Divide both sides by 2

x = 16 / 2

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x + 2

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= 10 feet

10 feet = 3.33333 yards

The shorter side piece of fabric = x = 8 feet

The longer side piece of fabrics = (x + 2) = 10 feet

7 0
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