3 years ago

A set of symbols that expresses a mathematical rule is called a

Mathematics

2 answers:

shutvik [7]3 years ago

3 0

Formula because that is the answer

Step2247 [10]3 years ago

3 0

Hi there !

The answer would be C. formula

Hope this helps !

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While on a camping trip, Calvin was monitoring the temperature. In the afternoon, the temperature was -4°C. As the evening progr

qaws [65]

Answer:

over c

Step-by-step explanation:

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3 years ago

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If a bacteria population starts with 100 bacteria and doubles every three hours, then the number of bacteria after t hours is n

natali 33 [55]

Answer:

$f^{-1}=3ln_2(\frac{t}{100})$

f^-1 represents the number of hours the bacteria developed

Step-by-step explanation:

$f(t) = 100 \cdot 2^\frac{t}{3}$

To find inverse of a function , replace f(t) with y

$y= 100 \cdot 2^\frac{t}{3}$

replace t with y and y with x

$x= 100 \cdot 2^\frac{y}{3}$

solve for y

divide both sides by 100

$\frac{x}{100} =2^\frac{y}{3}$

take ln on both sides

$ln \frac{x}{100} =\frac{y}{3}ln 2$

divide both sides by ln

$ln_2(\frac{x}{100}) =\frac{y}{3}$

multiply by 3 on both sides

$y=3ln_2(\frac{x}{100})$

Replace x with t and y with f^-1

$f^{-1}=3ln_2(\frac{t}{100})$

f^-1 represents the number of hours the bacteria developed

7 0

3 years ago

15(d+7)=4(d-4)+11d answer?

Viktor [21]

Answer:

Step-by-step explanation:

Factor out to simplify:

15d+105=4d-16+11d

15d+105=15d-16

subtract 15d from both sides

105=-16

this means that there are no solutions for d

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3 years ago

Find the median and mean of the data set below:<br> 21,0,36,30,13,32

hodyreva [135]

Answer:

Median: 25.5

Mean: 22

Step-by-step explanation:

Hope this helps!

Have a lovely day!

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3 years ago

Find the equation of a line that passes through the points (1,-5) and (3,-6).

Paha777 [63]

Answer:

y = -1/2x +11/2

Step-by-step explanation:

slope finding: -5+6/1-3 = -1/2

equation making: y+5 = -1/2(x-1)

rearranging: y = -1/2x +11/2

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3 years ago