MATHEMATICS HIGH SCHOOL

Julie just doesn't get how fraction division works .None of it makes sense she whined to Scott one day why does 3 over 4 divide by 2 equals to 3 over 8?

Answers

Answer 1

Answer:

Explanation:

Division by any number is the same as multiplication by its inverse (reciprocal). In this case, ...

$(\left((3)/(4)\right))/(2)=(3)/(4)\cdot(1)/(2)=(3\cdot 1)/(4\cdot 2)=(3)/(8)$

Multiplication of fractions is done in the usual way.

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Solve the system my elimination 9x + 2y = 9 6x - 2y = -4
The zeros of the function f(x) =(x+2) to the second power minus 5

Decide whether each expression simplifies to a number less than -1 or greater than 1.Less than -1
Greater than 1
Neither

(-10) divided by 6
-(5 divided by 2)
-3 divided by (-4)
-2• [- 7/2]
8/3•[-3:5]

Answers

Answer:

Step-by-step explanation:

(-10) ÷ 6 = $(-10)/(6)=(-5)/(3)=-1(2)/(3)$ less than -1

-(5÷2) = $-(5)/(2)=-2(1)/(2)$ less than (-1)

(-3÷ (-4) = $(-3)/(-4)=(3)/(4)$ Neither

(-2)* [-7/2] = $(-2)* (-7)/(2)=(-1)*(-7)=7$ Neither

(8/3)*(-3/5)= $(8)/(3)*(-3)/(5)=(-8)/(5)=-1(3)/(5)$ less than (-1)

In the year 1900, in the country Acirema, there were 100 Lawyers and 2 million people. Every 10 years, the number of Lawyers doubles, and the population increases by 2 million. Let t be the number of years after 1900. Thus t=3 corresponds to 1903. Find the equation involving t whose solution tells you in which year 20 percent of the population are Lawyers. DO NOT SOLVE OR BEGIN TO SOLVE THIS EQUATION..2=___________________?????

Answers

Well, there is a system:
$L=100*2^{(t)/(10)}$
$p=2000000+2000000*(t)/(10)$
$L=.2P$
I'd guess you need the last equation in a different form: $.2=(L)/(P)$

The equation is $\boxed{0.2 = \frac{{100 * {2^{\frac{t}{{10}}}}}}{{2000000 + 2000000 * \frac{t}{{10}}}}}.$

Further explanation:

Explanation:

In the year 1900 the population of the country is 2 million.

The number of lawyers in 1900 is 100.

Every 10 years the number of lawyers doubles and the population increases by 2 million.

Consider number of the lawyer as $x$ and the population of the country as $y$ .

The expression of increasing the number of lawyers can be expressed as follows,

$x = 100 * {2^{\frac{t}{{10}}}}$

The population of the country can be expressed as follows,

$y = 2000000 + 2000000 * \frac{t}{{10}}$

20 percent of the populations are Lawyers.

$\begin{aligned}0.2y&= x\n0.2&= (x)/(y)\n0.2&= \frac{{100 * {2^{\frac{t}{{10}}}}}}{{2000000\left( {1 + \frac{t}{{10}}} \right)}}\n\end{aligned}$

The equation is $\boxed{0.2 = \frac{{100 * {2^{\frac{t}{{10}}}}}}{{2000000 + 2000000 * \frac{t}{{10}}}}}.$

Learn more:

1. Learn more about inverse of the functionbrainly.com/question/1632445.

2. Learn more about equation of circle brainly.com/question/1506955.

3. Learn more about range and domain of the function brainly.com/question/3412497

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Exponential equation

Keywords: lawyers, in the year 1900, 100 lawyers, 2 million people, 10 years, Country, Acirema, lawyers double, population increase by 2 million, t, number of years, 1903, equation, involving t, solution, 20 percent population are laywers.

How many quarts in 24 pints?

Answers

There are 12 quarts in 24 pints.
:)

There are 12 Quarts in 24 pints!
Your welcome:-)

On a coordinate plane, a parabola opens up in quadrant 1. It goes through (2, 12), has a vertex at (5, 3), and goes through (8, 12). Write the equation of the function whose graph is shown. y = (x + )2 +.

Answers

Answer:

Step-by-step explanation:

You have a vertex coordinate and 2 points. In order to write the equation for that parabola, you only need the vertex and one point. We will fill in the following work form of the parabola:

$y=a(x-h)^2+k$ , where h and k are from the vertex and x and y are from the point. Filling in:

$12=a(8-5)^2+3$ and

$12=a(3)^2+3$ and

$12=9a+3$ and

9 = 9a s0

a = 1.

Now we can write the equation, filling in a, the only unknown we had, which we now know is 1:

$y=1(x-5)^2+3$

Answer:

y = 1(x + -5)2 + 3

Step-by-step explanation:

13.A student wishes to determine the percentage of students in his school that bring a sack lunch. He decides to poll every student in his grade level. It is found that 30 percent on the students polled bring a sack lunch. The student concludes that 30 percent of the students in the school bring a sack lunch. Identify the abuse of statistics.

bad sample

small sample

nonresponse

loaded question

Answers

Answer:

The answer is Bad sample.

Step-by-step explanation:

The student polls every student in his grade level. It is found that 30 percent on the students polled bring a sack lunch.

The student concludes that 30 percent of the students in the school bring a sack lunch.

Firstly, students of a single grade do not represent the entire school population. The student here asked every student of his class, so the sample was not random. It was biased and bad.

The collected data is not representative of the population, so it is a bad sample or bad sampling.

I would say this is considered small sample, because there is nothing really wrong with his survey in terms of quality. it's not like he only survey boys or girls, or like only survey rich or poor people. In other words, his survey is from a random pool, assuming the kids in his grade are mostly normal people. Therefore, I would say that if this person surveyed more people, then he'll get much better data.

Which of the following is the function representing the graph below? graph begins in the third quadrant near the line y equals negative 3 and increases slowly while crossing the ordered pair 0, negative 2. When the graph enters the first quadrant, it begins to increase quickly throughout the graph.f(x) = 4x
f(x) = 4x − 3
f(x) = 4x + 3
f(x) = 4(x + 3)

Answers

Answer:

f(x) = 4^x -3

Step-by-step explanation:

All of the listed functions are linear functions with a constant slope of 4. None of them goes through the point (0, -2).

So, we assume that there is a missing exponentiation operator, and that these are supposed to be exponential functions. If the horizontal asymptote is -3, then there is only one answer choice that makes any sense:

f(x) = 4^x -3

_____

The minimum value of 4^z for any z will be near zero. In order to make it be near -3, 3 must be subtracted from the exponential term.

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