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
gtnhenbr [62]
3 years ago
5

25. The heights of three-year-old boys are Normally distributed with a mean of

Mathematics
1 answer:
mario62 [17]3 years ago
7 0
1.29 just add them your welcome
You might be interested in
A= 1/1 bh solve for h
8_murik_8 [283]

\text{Hello there!}\\\\\text{Solve for h:}\\\\A=\frac{1}{1}bh\\\\\text{Multiply both sides by 1}\\\\A=1bh\\\\\text{Divide both sides by 1b}\\\\\frac{A}{1b}=h\,\,or\,\,\frac{A}{b}=h\\\\\boxed{h=\frac{A}{b}}

4 0
3 years ago
Determine the most precise name for ABCD (parallelogram, rhombus, rectangle, or square). Explain how you determined your answer.
Sonja [21]
<h3>Answer:  Rhombus</h3>

======================================================

Reason:

Let's find the distance from A to B. This is equivalent to finding the length of segment AB. I'll use the distance formula.

A = (x_1,y_1) = (3,5) \text{ and } B = (x_2, y_2) = (7,6)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(3-7)^2 + (5-6)^2}\\\\d = \sqrt{(-4)^2 + (-1)^2}\\\\d = \sqrt{16 + 1}\\\\d = \sqrt{17}\\\\d \approx 4.1231\\\\

Segment AB is exactly \sqrt{17} units long, which is approximately 4.1231 units.

If you were to repeat similar steps for the other sides (BC, CD and AD) you should find that all four sides are the same length. Because of this fact, we have a rhombus.

-------------------------

Let's see if this rhombus is a square or not. We'll need to see if the adjacent sides are perpendicular. For that we'll need the slope.

Let's find the slope of AB.

A = (x_1,y_1) = (3,5) \text{ and } B = (x_2,y_2)  = (7,6)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{6 - 5}{7 - 3}\\\\m = \frac{1}{4}\\\\

Segment AB has a slope of 1/4.

Do the same for BC

B = (x_1,y_1) = (7,6) \text{ and } C = (x_2,y_2)  = (6,2)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{2 - 6}{6 - 7}\\\\m = \frac{-4}{-1}\\\\m = 4\\\\

Unfortunately the two slopes of 1/4 and 4 are not negative reciprocals of one another. One slope has to be negative while the other is positive, if we wanted perpendicular lines. Also recall that perpendicular slopes must multiply to -1.

We don't have perpendicular lines, so the interior angles are not 90 degrees each.

Therefore, this figure is not a rectangle and by extension it's not a square either.

The best description for this figure is a <u>rhombus</u>.

4 0
2 years ago
Read 2 more answers
Evaluate 10.2x + 9.4y when x = 2 and y = 3.
IrinaK [193]

Answer:

48.6

Step-by-step explanation:

Substitute 2 for x and 3 for y

Multiply

Simplify by rounding then add to arrive at

Answer

7 0
3 years ago
Here is a distribution of six observations, sorted in ascending order:4.7, 9.2, 10.9, 12.3, 16.6, 18.3The mean of this distribut
SCORPION-xisa [38]

Answer:

<u>0 is the answer </u>

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Simplify: (5+√−9)(−9+√−196)
Margaret [11]

Answer:

-1809 + 899i  or

-1809 + √-899

Step-by-step explanation:

foil method

i² = -1

5 0
3 years ago
Other questions:
  • Yesterday, Bethany sent 60 messages. She said 15% of them were to her best friend. How many text messages did Bethany send to he
    12·1 answer
  • What is the angle measurement and angle relationship?
    13·1 answer
  • Let P(x, y) be a propositional function. If Vy3x P(x,y) is true, does it necessarily follow that 3x Vy P(x,y) is true? Justify y
    11·1 answer
  • Write one hundred sixty-seven thousand, five hundred forty-five in standard notation.
    8·2 answers
  • if in a parallelogram diagonals bisect each other at right angle and are equal then it is a ___________​
    9·2 answers
  • Help please pleaseee
    12·2 answers
  • A market research analyst claims that 32% of the people who visit the mall actually make a purchase. You think that less than 32
    10·1 answer
  • In Greenville, the library is due south of the courthouse and due west of the community swimming pool. If the distance between t
    9·1 answer
  • Evaluate 3x + 34 if x = 5.
    12·2 answers
  • 3. Which of the following is a solution to the equation 16 = 4x – 4? (1 point)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!