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aalyn [17]
2 years ago
13

What is not equivalent to 1/3 is it 5/15,7/21,6/24,or 9/27

Mathematics
1 answer:
Ne4ueva [31]2 years ago
6 0


Lets take a look.

1/3 x 5/5 = 5/15, so it is not A.

1/3 x 7/7 = 7/21, so it is not B.

1/3 x 9/9 = 9/27, so it is not D.

The answer must be C: 6/24, because 1/3 x 6 = 6/18, not 6/24. 1/3 x 8 = 8/24, not 6/24.

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The pH of solution A is 2.4​, while the pH of solution B is 9.4.
raketka [301]

Answer:

Given:

The pH of solution A = 2.4

The pH of solution B = 9.4.

Solution:

The hydrogen ion  concentration is the amount of hydrogen ions present in the given solution usually expressed in terms of moles pere litre .

(A) hydrogen-ion concentrations of the solution.

H^+= 10^{-pH}

Now,

The hydrogen ion concentration of the solution A

H^+= 10^{-2.4}

H^+= 3.981\times 10^{-3}

Similarly

hydrogen ion concentration of the solution B

H^+= 10^{-9.4}

H^+= 3.981\times 10^{-10}

​(b) The hydrogen ion concentration of solution A 3.981\times 10^{-3} is and the solution B is 3.981\times 10^{-10}

so we can conclude that the hydrogen ion concentration of solution A  is   10^ 7 times greater than solution B

(c) The solutions A and Solution B differ by 7 order of magnitude

3 0
3 years ago
Is 30 and 138 relatively prime
valkas [14]
Yes, If the two numbers have no factors in common then they are relatively prime.
3 0
2 years ago
Read 2 more answers
Please help me wit dis no one would help and i really need help
lukranit [14]

(4) 64 tiles,   (5) \mathrm{N}=\mathrm{s}^{2},   (6)  N^{2}=S^{4}

Step-by-step explanation:

Given data: Side length of square tile = 1 ft

(4)  Side length of square pool = 8 ft

\text {Number of tiles} =\frac{\text { Area of square pool }}{\text { area of square tile }}

=\frac{8 \times 8}{1 \times 1}

= 64

Hence 64 tiles needed for the border.

(5) Suppose number of square tiles be N and side of square tub is s ft.

So, N = \frac{s \times s}{1 \times 1}

\Rightarrow N=s^{2}

So, the expression is \mathrm{N}=\mathrm{s}^{2}.

(6) The equivalent expression is \mathrm{N}^{2}=\mathrm{S}^{4}.

5 0
2 years ago
FILL IN THE BLANKS: Given P(x) = 3x5 + 7x6 + 11x7 – 12x - 10
Mama L [17]

The polynomial  3x^5 + 7x^6 + 11x^7 - 12x - 10 is in standard form if the exponents are arranged in decreasing order.

<h3>Polynomial in Standard Form</h3>

Polynomial is an algebraic expression with one or more terms. For example :2x^3+6x^4+x^2+x+2. In this example and in your exercise the exponents of the terms are not arranged in order.

Um polynomial is in <u>Standard Form</u> when the exponents of the terms are in decreasing order. See more details below.

2x^3+6x^4+x^2+x+2is not in standard form because the exponents are not written in decreasing order.

6x^4+2x^3++x^2+x+2 is in standard form because the exponents are written in decreasing order.

Therefore, the given polynomial will be in standard form if yours exponents are arranged in decreasing order.

Read more about polynomials here:

brainly.com/question/4142886

4 0
2 years ago
Question 4 (20 points)
Blababa [14]

Answer:

The answer is C 128 cm3

Step-by-step explanation:

5 0
3 years ago
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