All categories

4 years ago

Why is it important to solve an equation for a specific variable?

1 answer:

8 0

It all depends on the importance of the variable its self. Its important to solve it so you know what the variable is and its important to solve one at a time because its impossible to solve a variable completely if you have two of them

You might be interested in

Evaluate the expression x ÷ y for x = 8 and y = 16.

daser333 [38]

Answer:

Step-by-step explanation:

hello :

x ÷ y for x = 8 and y = 16 means : 8/16 = 8/(2×8) = 1/2

7 0

4 years ago

Read 2 more answers

The molarity of a solute in solution is defined to be the number of moles of solute per liter of solution (1 mole = 6.02 × 1023

KengaRu [80]

Answer:

a) 0.65

b) 0.1581

Step-by-step explanation:

We are given the following in the question:

Distribution of X:

Mean = 0.125

Standard deviation = 0.05

Distribution of Y:

Mean = 0.350

Standard deviation = 0.10

Solution:

$M = X + 1.5Y$

a) mean of M

$\mu_M = \mu_X + 1.5(\mu_Y) = 0.125 + 1.5(0.350) = 0.65$

b) standard deviation of M

If X and Y are independent then,

$Var(X+Y) = Var(X) + Var(Y)\\Var)aX) = a^2Var(X)$

$Var(M) = Var(X+1.5Y)\\Var(M) =Var(X) + (1.5)^2Var(Y)\\Var(M) = (0.05)^2 + (1.5)^2(0.10)^2 = 0.025$

Standard deviation of M =

$=\sqrt{Var(M)} = \sqrt{0.025} = 0.1581$

4 0

3 years ago

How can you find the distance from a point to the x axis

mojhsa [17]

Answer:

be a big brain

Step-by-step explanation:

7 0

3 years ago

Victoria sets a goal for the number of boxes of Girl Scout cookies she wants to sell.So far, she's solved 33 boxes.I this is nin

oksian1 [2.3K]

Her goal is 120 boxes

I hoped this helped :)

7 0

3 years ago

A chemist is using 351 milliliters of a solution of acid and water. If 14.1% of the solution is acid, how many milliliters of ac

stepan [7]

49.491 millimeters of acid is present

<em><u>Solution:</u></em>

Given that, chemist is using 351 milliliters of a solution of acid and water

14.1% of the solution is acid

To find: Milliliters of acid present

From given statement,

Solution of acid and water = 351 ml

14.1% of the solution is acid, which means that 14.1 % of 351 ml is acid

Therefore,

Milliliters of acid present = 14.1 % of 351 ml

Here "of" means multiplication

Therefore,

$\text{ Milliliters of acid present } = 14.1 \% \times 351$

$\rightarrow 14.1 \% \times 351\\\\\rightarrow \frac{14.1}{100} \times 351\\\\\rightarrow 0.141 \times 351 = 49.491$

Thus 49.491 millimeters of acid is present

6 0

4 years ago