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
Art [367]
4 years ago
8

For the set B={3,5,7,9,12}, determine n(B)

Mathematics
1 answer:
Olenka [21]4 years ago
4 0
<span>Set B = {3,5,7,9,12}

To find </span><span>n(B), count the number of elements in the set.
</span><span>
n(B) = 5</span>
You might be interested in
Whats the quotient of 1 1/4 and 31/2
mina [271]

Answer:11/4 ÷31/2= 11/4 * 2/31 [2 and 4 get cancelled] 11/2 * 1/31 = 11/62

mark me as the brainliest

5 0
4 years ago
A rectangular box is constructed in 3-space with one corner at the origin and other vertices at (1, 0, 0), (0, 4, 0), (0, 0, 2).
77julia77 [94]

The space diagonal will have length ...

... d = √(1² +4² +2²) = √(1 +16 +4) = √21

_____

This can be found using the Pythagorean theorem. A drawing can help. Find the length of any face diagonal, then use that length as the leg of a right triangle whose hypotenuse is the space diagonal and whose other leg is the edge length not used in the first calculation.

7 0
4 years ago
On a coordinate plane, quadrilateral Q R S T has points (0, 2), (negative 4, 0), (0, negative 3), and (4, 0).
Afina-wow [57]

By applying the definitions of <em>rigid</em> transformation ((x, y) → (0.5 · x, 0.5 · y)) and dilation, we conclude that the coordinates of Q'(x, y) are (0.1).

<h3>How to apply rigid transformations on a point</h3>

Herein we must apply a rigid transformation into a given point to determine an image. <em>Rigid</em> transformations are transformations applied on a <em>geometric</em> locus such that <em>Euclidean</em> distance is conserved. Dilations are a kind of <em>rigid</em> transformations such that:

(x, y) → (k · x, k · y), for k > 0

If we know that Q(x, y) = (0, 2) and k = 0.5, then the coordinates of Q' are:

Q'(x, y) = (0.5 · 0, 0.5 · 2)

Q'(x, y) = (0, 1)

By applying the definitions of <em>rigid</em> transformation ((x, y) → (0.5 · x, 0.5 · y)) and dilation, we conclude that the coordinates of Q'(x, y) are (0.1).

To learn more on dilations: brainly.com/question/13176891

#SPJ1

8 0
2 years ago
it takes 52 minutes for 5 people to paint 5 walks. how many minutes does it take 20 people to paint 20 walks
Viktor [21]

Answer:

52min

Step-by-step explanation:

5 people..............5 walls............52 min

1 people...............5 walls...........52 x 5=260 min

1 people................20 walls.........260 x 4 =1040 min

20 people................20 walls........1040:20=52 min

7 0
3 years ago
Read 2 more answers
A person is on the outer edge of a carousel with a radius of 20 feet that is rotating counterclockwise around a point that is ce
lubasha [3.4K]
<h2>Answer:</h2>

\boxed{(5(-\sqrt{2}+\sqrt{6}),5(\sqrt{2}+\sqrt{6}))}

<h2>Step-by-step explanation:</h2>

The origin of the coordinate system is the center of the circle. So we have an angle that measures 5\pi/12=75^{\circ}. so the x-coordinate and y-coordinate can be found, by using trigonometry as follows:

x=20cos(5\pi/12)=5\sqrt{6}-5\sqrt{2} \\ \\ Arranging:\\ \\x=5(-\sqrt{2}+\sqrt{6}) \\ \\y=20sin(5\pi/12)=5\sqrt(6)+5\sqrt{2} \\ \\ Arranging:\\ \\y=5(\sqrt{2}+\sqrt{6})

Finally, the exact value of the position of the rider after the carousel rotates 5\pi/12 radians is:

\boxed{(5(-\sqrt{2}+\sqrt{6}),5(\sqrt{2}+\sqrt{6}))}

3 0
3 years ago
Other questions:
  • Use the simple interest formula to solve.
    6·2 answers
  • Product of 7 and 4 times a number plus 3
    9·1 answer
  • Brooke was the high scorer on her basketball team, making 15 baskets out of 25 shots attempted. What was her percent of success
    6·1 answer
  • HELP PLEASE GUYS I WILL MARK YOU AS BRAINIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    13·2 answers
  • X - 11 &lt; 7 <br> Please help✨✨
    8·2 answers
  • Chandler tells Aubrey that the decimal value of − 1 17is not a repeating decimal. Should Aubrey believe him? Explain.
    5·1 answer
  • If you know the seventh term in an arithmetic sequence and the common difference,
    6·1 answer
  • Fill in the table using this function rule <br> y=-10x+2
    11·1 answer
  • PLS SOMEONE HELP WITH THIS ASAP IM GIVING 50% OF MY POINTS
    12·2 answers
  • I need help with the answer to this question.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!