3 years ago

Need the answer right now

Mathematics

1 answer:

hodyreva [135]3 years ago

6 0

Answer:

Diameter is 19

Step-by-step explanation:

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Consider The following pair of equations the two equations are graft at what point do the lines representing the two equations i

ANEK [815]

Answer:

Step-by-step explanation:

hope this helps please brainiest

4 0

3 years ago

¿Cuántas diagonales tiene un cuadrado de 64 centímetros de perímetro? Ayudenme pliss esq no entendí la pregunta :(

Ulleksa [173]

Answer:

English: the diagonal length and probably be 22.2

Spanish: la longitud diagonal y probablemente sea 22,2

5 0

3 years ago

What is the perimeter of a square with s = 8 centimeters?

andrew11 [14]

Answer:

32centimeters

Step-by-step explanation:

4 sides are in a sqaure and all of them are equal so

8 times 4 is 32

3 0

3 years ago

using the associative property, 9 + (6 - 3) = (9 + 6) + 3. is 9 - (6 - 3) equal to (9 - 6) - 3? explain.

goldfiish [28.3K]

No because it only works with addition and multiplication

9+(-6-3)=(9-6)-3 is true tho

9-(6-3)=9-(3)=6
(9-6)-3=(3)-3=0
so not equivilent

4 0

3 years ago

Logarithm 2. The alkalinity of a fluid (pH) can be modeled in terms of its hydrogen ion concentration (H^+,measured in moles/lit

makkiz [27]

ok. We are given the following equation:

$ph=-\log (H)$

Where:

$\begin{gathered} P=\text{ alkalinity} \\ H=\text{ hydrogen ion concentration} \end{gathered}$

Since we are asked to determine "H" we will solve for "H" in the equation. To do that we will first multiply both sides by -1:

$-ph=\log (H)$

Now, we will use the following property of logarithms:

$\log _aB=c\rightarrow B=a^c$

Applying the property and having into account that:

$\log (H)=\log _{10}(H)$

We get:

$10^{-pH}=H$

Now we substitute the given value of "pH = 4.5":

$10^{-4.5}=H$

Solving the operation:

$0.000032=H$

Therefore, the hydrogen ion concentration of the fluid is 0.000032

7 0

1 year ago