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vladimir2022 [97]
3 years ago
7

What is the calue if angel K

Mathematics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

huh? and it wont load the picture

Step-by-step explanation:

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If x+y=10 find the value of y when x = 3
Reptile [31]
Just substitute in the number 3 for x then subtract 3 at both sides and youll have y=7
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3 years ago
95. Because atoms, molecules, and ions are very small, they are counted in units of moles, where 1 mole = 6.022 × 1023 molecules
Galina-37 [17]

Answer:

There are 10⁻⁷ hydrogen ions in one-liter water

Step-by-step explanation:

Hi there!

a. If the pH = 7.0, then:

-log(H) = 7.0

multiply both sides of the equation  by -1

log(H) = -7.0

Apply 10ˣ to both sides

10^(log (H)) = 10⁻⁷

(H) = 10⁻⁷

There are 10⁻⁷ hydrogen ions in one-liter water.

Why 10^(log (H)) = (H)?

Let´s consider this function:

y = 10^(log x)

(Apply log to both sides)

log y = log 10^(log x)

(Apply logarithmic property: log xᵃ = a · log x)

log y = log x · log 10

(log 10 = 1)

log y = log x

y = x

(since y =  10^(log x) and y = x):

10^(log x) = x

That´s why 10^(log (H)) = (H)

7 0
3 years ago
Student Council sponsors weekly dances at their school on Friday nights. The admission price for each person is $4 for Student C
Morgarella [4.7K]

Answer:

$110

Step-by-step explanation:

So first you have to do 15*4. We get the 4 from the admission fees and the 15 from the number of dances they attend. From this answer we can see the total of money they will be paying for admission for the 15 dances.

15*4=$60

However, our answer isn't just $50 as we are also told membership costs $50. So no we add $50 to $60, which gives us an answer of $110, which is the amount the member will pay if they attend 15 dances during the school year.

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2 years ago
Find the slope of the line using the points given (5,3) and (5,-9)
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Answer:

the slope is undefined

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3 years ago
Read 2 more answers
What is the remainder when you find 298 - 3?
bulgar [2K]

Answer:

295

Step-by-step explanation:

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2 years ago
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