Can enyone answer this question plz<br><br><br><br> what is 10x4x5x2x34x89x73x3217x56=?

Lena [83]

First, subtract 30x from each side to get:
-60 = -10x
Then, divide each side by -10 to get:
x = 6
Now, plug back in to check your answer:
30(6) - 60 = 20(6)
180 - 60 = 120
120 = 120

Hope this helps!! :)

4 0

3 years ago

If you ever swam in a pool and your eyes began to sting and turn red, you felt the effects of an incorrect pH level. pH measures

Kobotan [32]

For a better understanding of the explanation provided here, please go through the graphs in the attached files. The first file contains the explanations to the first part of the question and the second file contains the three graphs required to explain the second part (the y intercept part) of the question.

It has been given to us that the pH concentration equation is:

$p(t)=-log_{10}t$

where, The variable t represents the amount of hydronium ions and p(t) gives the resulting pH level.

As can be seen from the first graph, pH is 1 when the amount of hydronium ions, t is 0.1. This is as expected, because, from the concept of logarithms we know that:

$log_{10}(0.1)=log_{10}(\frac{1}{10})=log_{10}(10^{-1})=-1\times log_{10}10=-1\times 1=-1$

Thus, $p(0.1)=-1\times-1=1$

Again, the value of pH, p(t) is 0 when the concentration of the Hydronium ions, t is 1. This, again, is as expected, because, from the concept of logarithms we know that $log(1)=0$ .

If the pool maintenance man uses our graph and needs to find the the pH level if the amount of hydronium ions is raised to 0.50, then to do so, the pool maintenance man must draw a vertical line from t=0.5 and check the x coordinate of the point where this vertical line intersects the p(t) graph. As we can see from the graph this roughly comes out to be the horizontal line y=0.3.

Let us now move on to the second part of the question. For a better understanding of this part please go through the second graph which has been attached. This graph contains all translations on the original graph and the explanation to each one of them is provided below:

Let us start with the last one, -p(t). We know that, since, $p(t)=-log_{10}(t)$ , therefore, $-p(t)=log_{10}(t)$ , simply a vertical "flip" or reflection of the original graph. And because the original graph did not have a y intercept, this graph too will not have a y intercept.

Let us now move on to the first one. Here, $p(t)+1=-log(t)+1$ . This graph will simply move the original graph vertically up by 1 unit and that will not have any bearing on the y intercept and thus, the graph of p(t)+1 will again, not have a y intercept.

Finally, let us move on to the graph of the equation p(t+1). As can be seen, this graph has a y intercept at the origin when t=0. This is because:

$p(t+1)=log_{10}(t+1)$

and when t=0, $p(t+1)=p(0+1)=log_{10}(0+1)$

$p(1)=log_{10}(1)=0$

Thus, when t=0, p(t+1)=0 too and thus we have a y intercept.

Therefore, out of the three transformations, only the middle transformation results in a y-intercept, the explanation for which has been provided.

8 0

4 years ago

Write a python function that computes the area of an equilateral triangle given the length of one of its sides. search for a mat

Murljashka [212]

Area = (√3)/4 * s² (S = Any side of the Equilateral Triangle)

7 0

4 years ago

Five workers together can build a road in 20 days. Suppose every worker works at the same rate. Three workers work on the road f

Scilla [17]

Answer:

5 days

Step-by-step explanation:

This problem is an inverse proportion case. Having two variables: number of workers and time (in days); when we increase the number of workers, the time needed decreases; vice versa. Therefore, we can use the multiplication method: (workers * time) will always stay constant.

Let's say the time (in days) needed by the eleven workers is t,

5*20 = (3*10) + (14*t)

100 = 30+14t

70 = 14t

5 = t

It will take the eleven-workers 5 more days to finish the road.

8 0

2 years ago

hayley has x pieces of candy, hayden has 3 more than hayley, and you have twice as many as Hayden. if you have 38 pieces of cand

lapo4ka [179]

Answer:

The number of candies Hayley has is 16 .

Step-by-step explanation:

The number of candies Hayley has = x

So, Number of candies Hayden has = (x + 3)

Then the Number of candies i have = 2(x + 3)

Also,according to the question:

2(x + 3) = 38

or, 2x + 6 = 38 ⇒ 2x = 32

or, x = 32/2 = 16

⇒ x = 16

So, the number of candies Hayley has is x = 16 .

5 0

3 years ago

Can enyone answer this question plz what is 10x4x5x2x34x89x73x3217x56=?