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
photoshop1234 [79]
3 years ago
8

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics
1 answer:
Nady [450]3 years ago
6 0

Answer:  b) -0.625

<u>Step-by-step explanation:</u>

The formula for the z-score is:

z=\dfrac{x-\mu}{\sigma}\\\\\bullet z \text{ is the z-score}\\\bullet x \text{ is the value}\\\bullet \mu \text{ is the mean}\\\bullet \sigma \text{ is the standard deviation}\\\\z=\dfrac{6-8}{3.2}\\\\\\.\ =\dfrac{-2}{3.2}\\\\\\.\ =\large\boxed{-.0625}

You might be interested in
The Tampa Times polled 1,457 adults in the city to determine whether they put on their shirt before they put on their pants. Of
Morgarella [4.7K]

Answer:

The mean is 0.32 and the standard deviation is 0.0122.

Step-by-step explanation:

Given that the Tampa Times polled 1,457 adults in the city to determine whether they put on their shirt before they put on their pants.

Of the respondents, 48% said they put their shirt on first.

32% of all adults actually put their shirt on first

i.e. sample proportion is 48% while population proportion is 32%

Hence sampling distribution follows a distribution with mean = population proportion p

Hence here mean = 0.32

Std deviation of sampling distribution = \sqrt{\frac{pq}{n} } =\sqrt{\frac{0.32(0.68)}{1457} } \\=0.0122

Hence option 3) The mean is 0.32 and the standard deviation is 0.0122.

is right

3 0
3 years ago
"Which diagram below shows the first step in parallel line construction on a point outside a line?
mote1985 [20]

<u>Answer</u>

2nd diagram


<u>Explanation.</u>

When contraction a parallel line from a point say N, outside the line, the first thing is to draw a line from point N to the that line.

The point where this line from N intersect with line, name it say P. From this point you can use the properties of angles in a parallel lines to construct the parallel line.

The line NP can act like a transverse of the two parallel lines. The diagram 2 shows first step.


5 0
3 years ago
Read 2 more answers
Geometry question plz help
Murrr4er [49]
The surface area is <span>153.86

</span>

5 0
3 years ago
Draw a line representing the rise and a line representing the run of the line. State the slope in the simplest form
USPshnik [31]

Answer:

m=\frac{2}{3}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (1, -5)

Point (7, -1)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute [SF]:                    m=\frac{-1+5}{7-1}
  2. Add/Subtract:                      m=\frac{4}{6}
  3. Simplify:                               m=\frac{2}{3}
6 0
2 years ago
Ron is half as old as Sam, who is three times as old as Ted. The sum of their ages is 55. How old is Ron?
krok68 [10]
Ron is 15 years old.
7 0
3 years ago
Other questions:
  • salt water has a density of 1030 kg/m^3. a piece of wood with mass of 1260 g is a cuboid with dimensions 7 cm x 10 cm x 15 cm.Wi
    12·1 answer
  • Decimal equivalent to 7.7?
    11·1 answer
  • a gumball machine has 2 red gumballs and 2 green ones. If you buy 2 gumballs, what is the probability of both of them being red?
    11·2 answers
  • Stephanie has 6.98 lb of granola to divide into small bags. She will put 0.4 lb of granola in each bag.
    11·1 answer
  • Complete the table below using the Midpoint and Distance Formulas.
    10·1 answer
  • A rock climber's elevation above sea level changed −8212 feet in 214 minutes as she descended. What was the climber's average ch
    11·1 answer
  • A group of friends were working on a student film that had a budget of $1300. They used $546 of their budget on props. What perc
    7·1 answer
  • Plsss help me out ! i’d appreciate it !
    15·1 answer
  • 6x + 4 = 5x+17 + 120<br> need this answerd ASAP pls! thank u!
    15·1 answer
  • :( pls helppp its due in 14 minutess
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!