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2 years ago

Question 1

Mathematics

2 answers:

aivan3 [116]2 years ago

8 0

Answer:

Step-by-step explanation:

Yuri [45]2 years ago

3 0

Answer:

Step-by-step explanation:

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Help please this shouldn't take long to answer I'm just bad at this this stuff (brainliest)

icang [17]

Answer:

5 - 17 - 25 - 42 - 64

Step-by-step explanation:

Given data set:

5, 14, 20, 23, 25, 29, 40, 44, 64

It is already in ascending order.

As per data the 5-number summary is:

Minimum = 5
First quartile = (14 + 20)/2 = 17, the median of the lower half
Median = 25, the middle number as the set comprises of 9 numbers
Third quartile = (40 + 44)/2 = 42, the median of the upper half
Maximum = 64

3 0

2 years ago

Solve for y.

k0ka [10]

Answer:

y = $\frac{2}{9}$

Step-by-step explanation:

multiply $\frac{2}{3}$ by $\frac{3}{3}$ to get $\frac{6}{9}$ :

$\frac{6}{9}$ + y - $\frac{1}{9}$ = $\frac{7}{9}$

simplify:

y + $\frac{5}{9}$ = $\frac{7}{9}$

subract $\frac{5}{9}$ from both sides:

y = $\frac{2}{9}$

3 0

2 years ago

What is the value of n when n = 2 ?

lys-0071 [83]

Answer:

Step-by-step explanation:

Is there an expression you need to solve?

n = 2 so the value would be 2

3 0

2 years ago

Solve the following equation: x + 5 = 42

Readme [11.4K]

Answer:

x = 37

Step-by-step explanation:

Step 1: Subtract 5 from both sides

x + 5 - 5 = 42 - 5

x = 37

Answer: x = 37

6 0

3 years ago

Read 2 more answers

The population of the world was 7.1 billion in 2013, and the observed relative growth rate was 1.1% per year. A) Estimate how lo

VLD [36.1K]

Answer:

A) 63.36 years.

B) 100.42 years.

Step-by-step explanation:

We have been given that the population of the world was 7.1 billion in 2013, and the observed relative growth rate was 1.1% per year.

A) Since we know that population increases exponentially, therefore we will use our given information to form an exponential model for population increase and then we will solve for the time by which our population will be double.

$P(t)=7.1(1.011)^{t}$

$7.1 \times 2=7.1(1.011)^{t}$

$\frac{7.1 \times 2}{7.1} =(1.011)^{t}$

$2 =(1.011)^{t}$

Now let us solve for t using logarithm.

$ln(2) =ln (1.011)^{t}$

$ln(2) =t \cdot ln(1.011)$

$0.6931471805599453 =t \cdot 0.0109399400383344$

$t=\frac{0.6931471805599453}{0.0109399400383344}$

$t=63.3593217267282743049\approx 63.36$

Therefore, it will take 63.36 years the population to be double.

B) Now we will find the number of years it will take the population to be triple of its size.

$7.1 \times 3=7.1(1.011)^{t}$

$\frac{7.1 \times 3}{7.1} =(1.011)^{t}$

$3 =(1.011)^{t}$

Now let us solve for t using logarithm.

$ln(3) =ln (1.011)^{t}$

$ln(3) =t \cdot ln(1.011)$

$1.0986122886681097 =t \cdot 0.0109399400383344$

$t=\frac{1.0986122886681097}{0.0109399400383344}$

$t=100.4221490079915311298\approx 100.42$

Therefore, it will take 100.42 years the population to triple of its size.

6 0

2 years ago