7.25 cm plus 7.2 cm plus 8cm equals what

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Answer 1

Answer: there correct answer to that question is 22.45

Answer 2

Answer: 22.45 is the correct answer. Just add

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Solve linear system: x-y=6 and 2x=12+2y

Solve 400 mg =_?_ g

0.0004
0.004
0.04
0.4

Answers

$m=0.001\ some\ unit\n\n400\ mg=400\cdot0.001\ g=\boxed{0.4\ g}$

There are 1000 milligrams, or mg, in one gram, or g. Therefore, we have 400/1000=4/10=.4 grams in 400 milligrams. The fourth answer is the best one.

Log3x - log3(x − 8) = 2?????

Answers

Answer:To solve the equation log3x - log3(x - 8) = 2, we can use the properties of logarithms to simplify and solve for x.

First, let's apply the quotient rule of logarithms. The quotient rule states that log(base a)(b) - log(base a)(c) = log(base a)(b/c).

Using this rule, we can rewrite the equation as log3(x / (x - 8)) = 2.

Next, let's rewrite 2 as a logarithm. The logarithmic form of 2 is log(base a)(b) = c, where a^c = b. In this case, a^c = 3^2 = 9. Therefore, we can rewrite the equation as log3(x / (x - 8)) = log3(9).

Now that the bases are the same, we can set the arguments of the logarithms equal to each other. Therefore, x / (x - 8) = 9.

To solve for x, we can multiply both sides of the equation by (x - 8) to eliminate the fraction. This gives us x = 9(x - 8).

Expanding the right side of the equation, we get x = 9x - 72.

Next, we can subtract 9x from both sides of the equation to isolate x. This gives us -8x = -72.

Dividing both sides of the equation by -8, we find that x = 9.

Therefore, the solution to the equation log3x - log3(x - 8) = 2 is x = 9.

Step-by-step explanation:

I need 15. please its my last question and fast

Answers

Answer: X(to the power of 0) over 3(to the power of 2)

Explanation: It is equal to 1/9

Find the constant of variation k for inverse variation. Then write an equation for the inverse variation. y= 5 when x = 7.5 k = 37.5;y = 37.5/x k = 15;xy = 1.5 k = 2.5;y = 2.5/x k = 37.5;y=37.5x

Answers

direct variation has this formula: y = kx
inverse variation has this formula: y = k/x

y = 5 ; x = 7.5 ; k = 37.5

y = k/x ⇒ 5 = 37.5 / 7.5 ⇒ y = 37.5/x

Answer:k=37.5 ; xy=37.5

Step-by-step explanation:

What is the relationship between mass, density, and volume? Provide an example that involves calculating population density.

Answers

density = mass /volume

14x=6y-12 put this in slope intercept form

Answers

Answer:

To put the equation 14x = 6y - 12 into slope-intercept form (y = mx + b), where m represents the slope and b represents the y-intercept, we need to isolate the y variable on one side of the equation.

Starting with 14x = 6y - 12, we can rearrange the equation as follows:

6y = 14x + 12

Dividing both sides of the equation by 6, we get:

y = (14/6)x + 2

Simplifying further, the equation can be written in slope-intercept form as:

y = (7/3)x + 2

So, the equation 14x = 6y - 12, in slope-intercept form, is y = (7/3)x + 2.

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