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3 years ago

Which equation is not equivalent to the formula r = st?

Mathematics

2 answers:

Amiraneli [1.4K]3 years ago

6 0

Answer:

option C. It is not equivalent to the formula.

Step-by-step explanation:

maksim [4K]3 years ago

5 0

We are given the formula r = st. We evaluate each option to know the correct answer.

A.) S = r/t
r = st

B.) t = r/s
r = st

C.) s = t/r
r = t/s

D.) r = ts
r = st

Therefore, the correct answer among the choice given is option C. It is not equivalent to the formula.

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How much greater than m2+3mn−n2 is 4m2+5mn+6n2? PLEASE HELP

tiny-mole [99]

Answer:

3m² + 2mn + 7n²

Step-by-step explanation:

Subtract m² + 3mn - n² from 4m² + 5mn + 6n², that is

4m² + 5mn + 6n² - (m² + 3mn - n²)

= 4m² + 5mn + 6n² - m² - 3mn + n² ← collect like terms

= 3m² + 2mn + 7n²

5 0

3 years ago

Brittany has a recipe which yields 25 hamburgers, but she only needs to make 10. If the original recipe calls for nine pounds of

tankabanditka [31]

The answer is b
Because it makes sense

4 0

2 years ago

Read 2 more answers

Write an equation of the line that passes through the given point and is parallel to the given line.

saveliy_v [14]

the equation of line passing through given point parallel to y = -2x+7 is: $y = -2x+9$

Step-by-step explanation:

Given equation of line is:

$y = -2x+7$

As the given line is in slope intercept form, the coefficient of x is the slope

Let m1 be the slope of given line

$m_1 = -2$

Let m2 be the slope of second line then

$m_2= -2$

The equation of line is given by:

$y= m_2x+b$

Putting the value of slope

$y = -2x+b$

Putting the point (4,1) in the equation

$y = -2x+b\\1 = -2(4)+b\\1= -8+b\\b = 1+8\\b = 9$

Putting the value of b in the equation

$y = -2x+9$

Hence,

the equation of line passing through given point parallel to y = -2x+7 is: $y = -2x+9$

Keywords: Slope, intercepts

Learn more about slope at:

#LearnwithBrainly

3 0

3 years ago

There are 9 more pencils then pens in a container. There are 25 writing utensils in the container in all. How many pens are ther

VashaNatasha [74]

In order to determine the number of pens present in the container, we need to set up equations from the given in the problem statement. We do as follows:

let x the number of pencils
y the number of pens

From the statement, 9 more pencils then pens in a container,

x = y + 9

From the statement, there are 25 writing utensils in the container in all,

x + y = 25

We use substitution method to calculate for x and y,

y + 9 + y = 25
2y = 16
y = 8
x = 17

Therefore, there are 8 pens in the container and 17 pencils.

3 0

3 years ago

Square root of negative 72

Zina [86]

Answer:

i $6\sqrt{2} , i$

( the comma means there is space between the sqrt of 2 and the i.

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Luna G.

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3 years ago