Ask question

Ask question

All categories

Delicious77 [7]

2 years ago

12

Is this graph increasing or decreasing

1 answer:

hoa [83]2 years ago

5 0

Let me see the graph??

You might be interested in

Is 3 liters per 60 seconds a unit rate

Sauron [17]

No its not a unit rate

6 0

3 years ago

Use a normal approximation to find the probability of the indicated number of voters. In this case assume that 150 eligible vote

alexdok [17]

The number of people who voted follows a binomial distribution with probability of having voted $p=0.22$ and $n=150$ subjects, which means the approximating normal distribution should have mean $np=33$ and standard deviation $\sqrt{np(1-p)}\approx5.07$ .

With the continuity correction, you have

$\mathbb P(X$

8 0

2 years ago

You need new shoes for work which cost $70. You earn $400 net income each week, but have expenses totaling $380 each week. If yo

Nadya [2.5K]

Answer:

<u>4 weeks</u>

Step-by-step explanation:

Remaining money (per week) :

Net income - Expenses
$400 - $380
$20

No. of weeks to buy shoes :

Cost of shoes / Remaining money (per week)
$70/$20
3.5 ≈ <u>4 weeks</u> (nearest whole week)

5 0

2 years ago

The sum of 30 times (1/3)^(n-1) from 1 to infinity

sergeinik [125]

Let

$S_n=\displaystyle1+\frac13+\frac1{3^2}+\cdots+\frac1{3^n}$

Then

$\dfrac13S_n=\displaystyle\frac13+\frac1{3^2}+\frac1{3^3}+\cdots+\frac1{3^{n+1}}$

and

$S_n-\dfrac13S_n=\dfrac23S_n=1-\dfrac1{3^{n+1}}\implies S_n=\dfrac32-\dfrac1{2\cdot3^n}$

and as $n\to\infty$ , we end up with

$\displaystyle\lim_{n\to\infty}S_n=\lim_{n\to\infty}\sum_{i=1}^{n+1}\frac1{3^{i-1}}=\lim_{n\to\infty}\left(\frac32-\frac1{2\cdot3^n}\right)=\frac32$

So we have

$\displaystyle\sum_{n=1}^\infty30\left(\frac13\right)^{n-1}=30\cdot\frac32=45$

8 0

2 years ago

Russell runs 9/10 mile in 5 minutes. At the rate, how many miles can he run in one minute

jonny [76]

9/10 mile = 5 min

9/10 ÷ 5 mile = 1 min

9/10 × 1/5 mile = 1 min

9/50 mile = 1 min

5 0

2 years ago