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a_sh-v [17]
3 years ago
15

What is the general form to find square roots

Mathematics
1 answer:
Effectus [21]3 years ago
4 0

Answer:

see below (I hope this helps!)

Step-by-step explanation:

Square roots are usually in the form a√b where a and b are any rational number.

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A sugar solution was made by mixing 7 ml of a 50% sugar solution and 3 ml of a 80% sugar solution. Find the concentration of the
pochemuha
7 * 0.5 + 3 * 0.8 = 3.5 + 2.4 = 5.9 

<span>5.9/10 X 100 = 59%


</span><span>59% concentration of new mixture</span>
4 0
3 years ago
suppose you write an equation that gives "a" as a function of "b". Which is the dependent variable and which is the independent
blondinia [14]
If im not wrong which i may not the
Dependent is A
Independent is B
4 0
3 years ago
Read 2 more answers
Determine whether the following equation defines y as a function of x.
Aleks04 [339]

Answer:

The equation can define y as a function of x and it also can define x as a function of y.

Step-by-step explanation:

A relation is a function if and only if each value in the domain is mapped into only one value in the range.

So, if we have:

f(x₀) = A

and, for the same input x₀:

f(x₀) = B

Then this is not a function, because it is mapping the element x₀ into two different outputs.

Now we want to see it:

x + y = 27

defines y as a function of x.

if we isolate y, we get:

y = f(x) = 27 - x

Now, this is a linear equation, so for each value of x we will find an unique correspondent value of y, so yes, this is a function.

Now we also want to check if:

x +  y = 27

defines x as a function of y.

So now we need to isolate x to get:

x = f(y) = 27 - y

Again, this is a linear equation, there are no values of y such that f(y) has two different values. Then this is a function.

3 0
3 years ago
The mean amount of money spent on lunch per week for a sample of 100 students is $21. If the margin of error for the population
Digiron [165]

From the given mean and margin of error, the 99% confidence interval for the mean amount of money spent on lunch per week for all students is:

[$19.5, $22.5].

<h3>How to calculate a confidence interval given the sample mean and the margin of error?</h3>

The confidence interval is given by the sample mean plus/minus the margin of error, hence:

  • The lower bound is the sample mean subtracted by the margin of error.
  • The upper bound is the sample mean added to the margin of error.

For this problem, we have that:

  • The sample mean is of $21.
  • The margin of error is of $1.50.

Hence the bounds are given as follows:

  • Lower bound: 21 - 1.50 = $19.50.
  • Upper bound: 21 + 1.50 = $22.50.

Hence the interval is [$19.50, $22.50].

More can be learned about confidence intervals at brainly.com/question/25890103

#SPJ1

7 0
1 year ago
I need help, I need to determine the slope and y-intercept for each group. I need to write an equation for the graph in slope-in
viktelen [127]

Answer:

slope= 3/5  y int=-2 equation y = 3/5 -2

Step-by-step explanation:

slope= rise over run

y int = where the y axis and the line meet

equation= y =mx+b

m=slope

b = y int

4 0
3 years ago
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