un refresco tiene una concentración de 3.8 x 10-4 de iones H+. determina el valor de PH de ese refresco​

Answer:

0, 1

1, 4

2, 7

3, 10

4, 13

5, 16

6, 19

7, 22

Step-by-step explanation:

hope this helps!

Answer:

R. 25m + 10b = 400

Step-by-step explanation:

25m: $25 for time the mow the lawn

10b: $10 for every hour that they babysit their younger brother

400: They need $400 in total

+ : You need to add what they made for mowing the lawn and for babysitting.

Answer:

Angle of 1 and 3 as 90*

Step-by-step explanation:

This is because all angles are the same meaning all angles are 90*. Even 1 and 3. Brainiest and a thank you?!

Answer:

We really aren't provided with enough information to give you the answer. I'll explain how to find them, but you should comment on my response and tell be if it gives you any values at all to work with.

So, ∠1 and ∠3 are vertical angles, which means they are equal to each other.

Along with that, ∠2 and ∠4 and also vertical angles, so they're equal to each other as well.

Now we have the information:

∠1 = ∠3

and

∠2 = ∠4

__________________________________________________________

Given that both of the two lines are intersecting, each angle has two angles that it is supplementary to.

Supplementary angle are angles that when added together equal exactly 180°.

A perfectly straight line's angle it 180°.

Using this knowledge, you can find that ∠1 is supplementary to ∠2, ∠2 is supplementary to ∠3, ∠3 is supplementary to ∠4, and ∠4 is supplementary to ∠1.

If that's still confusing, here's it explained simpler:

∠1 + ∠2 = 180°

∠2 + ∠3 = 180°

∠3 + ∠4 = 180°

∠4 + ∠1 = 180°

__________________________________________________________

But still - you haven't given us the information to find these values. Are you given even one angle measurement to work with?? If so, comment it here and I'll work it out for you.

Answer:

5.6  percent

Step-by-step explanation:

because

Answer:

The m∠YXW is 125°.

Addition equation: m∠YXW = m∠YXZ + m∠ZXW = 85° + 40° = 125°

Step-by-step explanation:

To find the m∠YXW you would need to add the m∠YXZ and m∠ZXW together:

m∠YXW = m∠YXZ + m∠ZXW = 85° + 40° = 125°

Answer:

9

Step-by-step explanation:

72 - 63 = 9

Since it's asking how many letters he has left after opening 72 so your basically subtracting. Hope this helps

Answer:

9

Step-by-step explanation:

9  BECAUSE IF U ADD 9INE TO 63 YOU GET 72

Answer:

[tex]$\frac{1}{3}$[/tex] , 0.33 , 33%

Step-by-step explanation:

The spinner has 4 green, 4 blue and 4 yellow.

So total = 12

Therefore, the probability of the spinner landing on blue or green as a fraction is = [tex]$\frac{4}{12}$[/tex]

   [tex]$=\frac{1}{3}$[/tex]

The probability of the spinner landing on blue or green as a decimal is = 0.33

The probability of the spinner landing on blue or green as a percent is

= 0.33 x 100

= 33 %

Answer: Inactivity fee

Step-by-step explanation:

The rest of the options are not given but there can only be one correct answer to this question and that's the answer above.

Brokerages earn a return when they trade financial instruments for investors as they take a commission from this. When an investor has not traded for a while, brokerages don't get to make earnings and will be holding the account with minimal rewards.

To compensate for this, they charge an inactivity fee that will ensure that they get some form of earnings for managing the account and not receiving commission.

Answer:

Inactivity fee

Step-by-step explanation:

Answer: The answer is b !

Image attached should help

The line of best fit is:

y = 3.1x + 12.9

Option A is the correct answer.

We have,

The line of best fit can be expressed in the form of y = ax + b,

where a is the slope of the line and b is the y-intercept.

From the given LinReg results, we have:

a = 3.1

b = 12.9

Substituting a and b in the equation y = ax + b we get,

The line of best fit is:

y = 3.1x + 12.9

Thus,

The line of best fit is:

y = 3.1x + 12.9

Learn more about the line of best fit here:

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Step-by-step explanation:

40% × 12 = 4.8

12 + 4.8 = 16.8

rounded off = 17 games

Answer:

30

Step-by-step explanation:

infinite solutions cause when you take out the 2 from the bottom equation, you get x + y = 4, which is the exact same equation as the first one, so literally any two values will result in the same for both

Answer:

∅ = 37°

Step-by-step explanation:

cos ∅ = adj/hyp = 4/5 = 0.8

∅ = 37°

Answer: D and E

the answers is between 1 and 2 so A is out

the dot is a little more than halfway so B and C are out

D and E are left :)

Answer:

D E

Step-by-step explanation:

Answer:

Yes that is correct

Step-by-step explanation:

52  x 25 = 1,300

1300/ 100= 13

Answer:

exponential decay because the base is less than one

Step-by-step explanation:

Answer:

1/1

1.0

100%

Step-by-step explanation:

Answer:

9/9 is the same as 1

Step-by-step explanation:

9/9 = 1/1

= 1.0

= 1

= 100%

Answer:

x= 4 and y=1

Step-by-step explanation:

to solve this you could either use substitution or elimination. elimination would be best her because both 'x's have the same number. subtract the equations from eahh other and solve for y, then substitute the y and solve for x

The system of equations are solved and x = -4 and y = 1

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

To solve the system of equations:

5x + y = -19 (Equation 1)

5x - 4y = -24 (Equation 2)

Let's use the elimination method in this case.

Step 1: Multiply Equation 1 by 4 and Equation 2 by 1 to eliminate y.

4(5x + y) = 4(-19)

5x - 4y = -24

20x + 4y = -76 (Equation 1 multiplied by 4)

5x - 4y = -24 (Equation 2 multiplied by 1)

Step 2: Add the equations together to eliminate y.

20x + 4y + 5x - 4y = -76 - 24

25x = -100

x = -100 / 25

x = -4

Step 3: Substitute the value of x into either Equation 1 or Equation 2 to solve for y.

5(-4) + y = -19 (Using Equation 1)

-20 + y = -19

y = -19 + 20

y = 1

Hence , the solution to the system of equations is x = -4 and y = 1

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Answer:

b, b

Step-by-step explanation:

use the graph

Answer:

2. 119

Step-by-step explanation:

Answer:

25

Step-by-step explanation: c:

Here is the order 1, 4, 7, 10, 13, 16, 19, 22, 25, 28

Answer:

For width W and length L, we have:

W = L = √(75ft^2) = 8.66ft

Step-by-step explanation:

For a rectangle of length L and width W, the area is:

A = L*W

and the perimeter is:

P = 2*L + 2*W

First, we know that the area of our rectangle is:

A = 75ft^2 = L*W

And we want to minimize the perimeter of our rectangle, then we need to minimize:

P = 2*L + 2*W

From the equation:

75ft^2 = L*W

We can isolate one of the variables, let's isolate L

L = (75ft^2)/W

We could replace this in the perimeter equation:

P(W) = 2*( (75ft^2)/W) + 2*W

P(W) = (150 ft^2)/W + 2*W

To find the minimum of the perimeter we need to look at the zero of the first derivative of P(W).

P'(W) = dP(W)/dW = -(150ft^2)/W^2 + 2

Now we need to find the value of W such that:

P'(W) = 0

0 =  -(150ft^2)/W^2 + 2

(150 ft^2)/W^2 = 2

(150ft^2) = 2*W^2

(150ft^2)/2 = W^2

75 ft^2 = W^2

√(75ft^2) = W = 8.66ft

And remember that:

L =  (75ft^2)/W

replacing with W = √(75ft^2)

L =  (75ft^2)/√(75ft^2) = √(75ft^2)

Then:

W = L = √(75ft^2) = 8.66ft

Answer:

vertical angle = 2 and 3

supplementary angle = 2 and 4

hope it helps

Answer:

Vertical is like 1 and 4. Supplementary is like 1 and 3.

1 pound is equivalent to 16oz

Answer:

Ask it again and more people will have a chance to see it

Step-by-step explanation:

Answer:

21/36 or 7/12

Step-by-step explanation:

1+1          

1+2,  2+1,  2+2

1+3,  3+1,  2+3,  3+2,  3+3,  3+4

1+4,  4+1,  2+4,  4+2,  4+3

1+5,  5+1,  2+5,  5+2

1+6,  6+1

Answer:

4

Step-by-step explanation:

Answer:

.0065

Step-by-step explanation:

You move the decimal backwards 3 times

Answer:

The answer is 0.0065

Step-by-step explanation:

Hope it will help you...