1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ira Lisetskai [31]
2 years ago
8

Simplify the following:

Mathematics
1 answer:
marin [14]2 years ago
6 0

Answer:

no one can do it

Step-by-step explanation:

You might be interested in
62,400 is what percentage of 156,000
STatiana [176]
62400 is what percent of 156000 
<span>= 62400 / 156000 </span>
<span>= 0.4 </span>

<span>Converting decimal to a percentage: </span>
<span>0.4 * 100 = 40%</span>
5 0
3 years ago
Read 2 more answers
Use technology or a z-score table to answer the question.
Alik [6]

Answer:

The second choice: Approximately 65.2\% of the pretzel bags here will contain between 225 and 245 pretzels.

Step-by-step explanation:

This explanation uses a z-score table where each z entry has two decimal places.

Let \mu represent the mean of a normal distribution of variable X. Let \sigma be the standard deviation of the distribution. The z-score for the observation x would be:

\displaystyle z = \frac{x - \mu}{\sigma}.

In this question,

  • \mu = 240.
  • \sigma = 9.3.

Calculate the z-score for x_1 = 225 and x_2 = 245. Keep in mind that each entry in the z-score table here has two decimal places. Hence, round the results below so that each contains at least two decimal places.

\begin{aligned} z_1 &= \frac{x_1 - \mu}{\sigma} \\ &= \frac{225 - 240}{9.3} \approx -1.61\end{aligned}.

\begin{aligned} z_2 &= \frac{x_2 - \mu}{\sigma} \\ &= \frac{245 - 240}{9.3} \approx 0.54\end{aligned}.

The question is asking for the probability P(225 \le X \le 245) (where X is between two values.) In this case, that's the same as P(-1.61 \le Z \le 0.54).

Keep in mind that the probabilities on many z-table correspond to probability of P(Z \le z) (where Z is no greater than one value.) Therefore, apply the identity P(z_1 \le Z \le z_2) = P(Z \le z_2) - P(Z \le z_1) to rewrite P(-1.61 \le Z \le 0.54) as the difference between two probabilities:

P(-1.61 \le Z \le 0.54) = P(Z \le 0.54) - P(Z \le -1.61).

Look up the z-table for P(Z \le 0.54) and P(Z \le -1.61):

  • P(Z \le 0.54)\approx 0.70540.
  • P(Z \le -1.61) \approx 0.05370.

\begin{aligned}& P(225 \le X \le 245) \\ &= P\left(\frac{225 - 240}{9.3} \le Z \le \frac{245 - 240}{9.3}\right)\\&\approx P(-1.61 \le Z \le 0.54) \\ &= P(Z \le 0.54) - P(Z \le -1.61)\\ &\approx 0.70540 - 0.05370 \\& \approx 0.65.2 \\ &= 65.2\% \end{aligned}.

3 0
3 years ago
Simplify the following expression. -7x²-2+5x+13x² - 15x​
andreev551 [17]

Answer: 2(3x^2-5x-1) or 6x^2-10x-2

Step-by-step explanation: combine like terms, and then factor by grouping :)

8 0
8 months ago
Water boils at different temperatures based on its elevation above sea level. Ann and Rob are in
Misha Larkins [42]

Answer:

Step-by-step explanation:

B. The medians are the same.

3 0
3 years ago
Read 2 more answers
Jane is comparing prices of f bottled drinks. She finds one bottle of water that cost $1.92 and contains 12 ounces. She then fin
german

Answer:

the soda is less

Step-by-step explanation:

if you divide both the soda and the waters ounces by their price than you will get 0.15 for the soda and 0.16 for the water showing that its 1 cent more expensive than the soda

5 0
3 years ago
Other questions:
  • Which of the following mixed numbers has a value between 10/3 and11/3
    12·2 answers
  • State the slope and y-intercept of the graph of 9 – x = 2y
    10·1 answer
  • Help with problems 1 &amp; 3
    5·1 answer
  • Don,Eric, and Finn line up in random order for the cafeteria line. What is the probability that they will line up from front to
    6·2 answers
  • Help me pleaseeeeeeeeee
    12·1 answer
  • The museum of fine arts decides to expand its collection of European, Latin American and African art. After reviewing their curr
    12·2 answers
  • I need help plz ............
    5·2 answers
  • What is the value of 24 - (-6 - (5 + 8))?
    12·1 answer
  • Somebody please help me:(
    5·2 answers
  • PLEASE HELP! <br><br> i’ll mark brainliest if you’re correct!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!