PLS HELP ME SOLVE THIS
The pH level, P, of a liquid can be determined from the hydronium ion (H3O+) concentration, c, using the equation P = –log(c). If the pH level of grape juice is 3.3, what is the hydronium ion concentration?

A. 5.01 x 10^–4
B. 1.19 x 10^–2
C. 1.99 x 10^3
D. 1.53 x 10^5

Answer:

Step-by-step explanation:

11 + (-7)

= 11 - 7

= 4

Answer:

87

Step-by-step explanation:

Smaller number = 43

Bigger number= 44

Sum = 43+44

Question Answer: 44+43 = 87

Answer:6 students remaining

Step-by-step explanation:Multiply 2/3 *45 which equals 30. If 30 students gave their speech on the first day there are 15 students remaining. Then multiply 3/5 * 15 which equals 9. If 9 of the 15 remaining students gave their speech than 15-9= 6 students remaining.

9514 1404 393

Answer:

  x ≠ 3

Step-by-step explanation:

In any case, the domain is restricted to values of the variable for which the function is defined. The value 1/0 is not defined, so the variable cannot allow the denominator to be zero. The denominator x-3 will be zero for x=3, so that value of the variable cannot be in the domain.

The domain is all real numbers except x=3.

_____

Additional comments

It is useful to become familiar with the domains of different functions. As we saw above, the reciprocal of 0 is undefined. The square root of a negative number is undefined. The log of a non-positive number is undefined. Trig functions are defined everywhere, but their inverse functions are not. Polynomial functions are defined everywhere, but ratios of polynomials have the same restriction on denominators that we see above.

Answer:

=-26

Step-by-step explanation:

f(n) = 7n – 5

Let n = -3

f(-3) = 7*(-3) – 5

Multiply first

     = -21-5

     =-26

Answer:

80

Step-by-step explanation:

Answer:

Step-by-step explanation:

You need to find the HCF of 36 and 90.

Prime factors of each:

HCF includes all prime factors of both numbers:

To find the least number,

Which is exactly divisible by 36 and 90. We have to find the HCF of 36 and 90.

→ 36 = 2 × 2 × 3 × 3

→ 90 = 2 × 3 × 3 × 5

Then the required HCF will be,

→ 2 × 2 × 3 × 3 × 5

→ 180 (HCF)

Thus, 180 is the least number which is exactly divisible by 36 and 90.

[tex]\text{A}_{\square}=\text{a}^2\\\\a\longrightarrow\text{x}+1\\\\\text{A}_{\square}=(\text{x}+1)^2=(\text{x}+1)(\text{x}+1)=\text{x}^2+\text{x}+\text{x}+1=\boxed{\text{x}^2+2\text{x}+1}[/tex]

Answer:

Step-by-step explanation:

No, the results are not necessarily representative of the school as a whole.

A random survey is a research technique that is used to gather information from a sample of people or things in a population. The results of a random survey are more likely to be representative of the population as a whole since every member of the population has an equal chance of being chosen to take part in the research.

Given:

Ivy randomly surveys students in her school to learn more about mobile phone password use.

Of 25 respondents, 14 use a password.

If the survey was conducted on a volunteer basis, it is possible that the respondents who chose to participate may have different characteristics or behaviors than those who did not participate.

This could lead to a biased sample that does not accurately represent the entire school population.

Additionally, even if the sample is representative of the school population, a sample size of 25 is relatively small, which can increase the margin of error and make it more difficult to draw accurate conclusions.

Therefore, it is important to consider the limitations of the survey method and sample size when interpreting the results.

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The complete question:

Ivy randomly surveys students in her school to learn more about mobile phone password use.

Of 25 respondents, 14 use a password.

If Ivy conducted her survey of 25 students on a volunteer basis, are the

results representative of the school?

The domain is the set of all the x-values/inputs used by the function.  

The range is the set of all y-values/outputs used by the function.

For #1:

The domain is { 1, 0, -1, 4 } because those are the x-values.

The range is { 3, 5, 7, -6 } because those are the x-values.

I'll let you try #2.  if you write back with your answer, I'll reply to let you know if you did it correctly.

1+2+3+4+5+6+7+8+9×2+14

It would equal 5/12

Step-by-step explanation:

Simple maths..

[tex]\\ \sf\longmapsto 54\%\:of\:270[/tex]

[tex]\\ \sf\longmapsto 27\times \dfrac{54}{100}[/tex]

[tex]\\ \sf\longmapsto \dfrac{1458}{100}[/tex]

[tex]\\ \sf\longmapsto 145.8[/tex]

Answer:

145.8 is the answer

Step-by-step explanation:

Mark it brainlist answer

Answer:she is right

Step-by-step explanation:

If you have to make a 48 foot long fence and each post is 6 feet then you would need 8. 6 times 8 =48

Answer:

She will need 9 posts. 1 in each end and 7 in the middle = 2+7=9

Step-by-step explanation:

Answer:

[tex] \frac{x {y}^{2} }{ - 8} \\ x = 7 \\ y = 1 \\ then \\ \frac{7 \times {1}^{2} }{ - 8} = \frac{7}{ - 8} = \frac{ - 7}{8} \\ thank \: you[/tex]

Answer:

Use Desmos Graphing Calculator if you have more problems like this

Answer:

d

Step-by-step explanation:

The main objective of timelines is to demonstrate a sequence of actions within a particular time interval. Although timelines cover a great period of time, it is not very detailed. Nevertheless, it is possible to add images, data, or figures.

Answer:

Lee and Gary received the same amount of money (150,000)

Step-by-step explanation:

Answer:

your smart enough

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

5/6 = x/12

6 x 2 = 12

5 x 2 = 10

x = 10

Answer:

r≈3.95

Step-by-step explanation:

Using the formula

A=πr^2

Solving for r

r=A

π=49

π≈3.94933

An angle that is adjacent and congruent to m ∠FTK is, m ∠HTK. So option 1 is true.

Used the concept of angle that states,

An angle is a combination of two rays with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.

Given that;

T lies on both FH and GJ.

Now by the given figure;

m ∠FTK = 90 degrees

Hence, an angle that is adjacent and congruent to m ∠FTK is,

m ∠HTK = 90 degrees

Therefore, option 1 is true.

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Answer:

""Data that can be observed with our five senses """is right option..

Step-by-step explanation:

A qualitative observation involves the use of five sensory organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value.

the aswer is...false

It is false that 5 . 26 − □ = 1 . 38 The value 3.12 makes the equation. To check if the value 3.12 makes the equation true or false, we can substitute it into the equation and see if both sides are equal.

Given equation:

5.26 − □ = 1.38

Substitute □ with 3.12:

5.26 − 3.12 = 1.38

Now, calculate the left-hand side:

5.26 - 3.12 = 2.14

The equation becomes:

2.14 = 1.38

Since 2.14 is not equal to 1.38, the equation is false when □ is replaced with 3.12.

Therefore, the value 3.12 does not make the equation true.

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Answer:

Equation: 11-2x=5. -2x=-6.

x=3

91 ÷ 8645 = 1 ÷ (8645 ÷ 91) =

9 5 r 0

9 1 | 8 6 4 5

– 8 1 9

_____________

4 5 5

− 4 5 5

0

Thus 91 ÷ 8645 = 1 / 95 r 0