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
Licemer1 [7]
3 years ago
15

Determine which statements are true in reals3. (Selectall that apply.)

Mathematics
1 answer:
Serggg [28]3 years ago
6 0

Answer:

(a)Two lines parallel to a third line are parallel.

(c) Two planes parallel to a third plane are parallel.

(f) Two lines perpendicular to a plane are parallel.

(h) Two planes perpendicular to a line are parallel.

(i) Two planes either intersect or are parallel.

(k) A plane and a line either intersect or are parallel

Step-by-step explanation:

(b) Two lines perpendicular to a third line are parallel. -- No. The y-, and z-axes are perpendicular to the x-axis, but are not parallel.

(d) Two planes perpendicular to a third plane are parallel. -- No. The x-y and y-z coordinate planes are both perpendicular to the x-z coordinate plane, but are at right angles to each other.

(e) Two lines parallel to a plane are parallel. -- No. Two intersecting lines in the plane z=0 are both parallel to the plane z=1, but are not parallel to each other.

(g) Two planes parallel to a line are parallel. -- No. Both the x-z plane and the y-z plane are parallel to the line (x, y, z) = (1, 1, z), but those coordinate planes are perpendicular to each other.

(j) Two lines either intersect or are parallel. -- No. The lines may be skew, running different directions in parallel panes.

You might be interested in
I need help I’m stuck on this
arsen [322]

press ask for help i think it my help im also stumped on that

8 0
3 years ago
The measure of an angle in standard position is given. Find two positive angles and two negative angles that are coterminal with
Pani-rosa [81]
Notice the picture below

negative angles, are just angles that go "clockwise", namely, the same direction a clock hands move hmmm so....  and one revolution is just 2π

now, you can have angles bigger than 2π of course, by simply keep going around, so, if you go around 3 times on the circle, say "counter-clockwise", or from right-to-left, counter as a clock goes, 3 times or 3 revolutions will give you an angle of 6π, because 2π+2π+2π is 6π

now... say... you have this angle here... let us find another that lands on that same spot

by simply just add 2π to it :)  

\bf \cfrac{7}{6}+2=\cfrac{19}{6}\qquad thus\qquad \cfrac{7\pi} {6}+2\pi =\cfrac{19\pi }{6}
\\\\\\
\cfrac{19\pi }{6}\impliedby co-terminal\ angle

now, that's a positive one
and  \bf \cfrac{7}{6}-2=-\cfrac{5}{6}\qquad thus\qquad \cfrac{7\pi} {6}-2\pi =-\cfrac{5\pi }{6}
\\\\\\
-\cfrac{5\pi }{6}\impliedby \textit{is also a co-terminal angle}

to get more, just keep on subtracting or adding 2π


8 0
3 years ago
Pls answer with real answers only thank you
aev [14]
Answer: 32.35 cm^2

Step by step:

Find the area of the rectangle first.

A= L • W
A= 11 • 4.2
A= 46.2 cm^2

Then find the area of the circle. The formula is A= pi (r)^2. The diameter of the circle is 4.2 cm because looking at the width of the rectangle it fits into the circle as well.

Half of the diameter is 2.1 cm which is the radius.

A= pi (r)^2
A= pi (2.1)^2
A= pi (4.41)
A= 13.85 cm^2

Then you would subtract 13.85 from 46.2 to find the shaded portion.

Hope this helps :))

4 0
3 years ago
Kelly and Jessica have a total of 5 same-sized cookies. They want to divide them equally between the two of them. How much cooki
Paraphin [41]

Answer:

Each girl gets 2 1/2.

Step-by-step explanation:

5 is an odd number. If you take the 4 in it and split that in half then you have 2. Then take the extra 1 from the rest of 5 and split that in half.

2 1/2.

5 0
3 years ago
Read 2 more answers
Please help me the question is. Marco's grandmother and his uncle both called Marco today.
VMariaS [17]

Answer:

18 days until they both call him on the same day

Step-by-step explanation:

The common multiples of 6 and 9 is 18, 36, 54, etc. 18 is the first common multiple so Marco's grandparents willl call Marco on the 18th day. please boost me

3 0
3 years ago
Other questions:
  • A cow is tethered to one corner of a rectangular barn, 10 feet by 20 feet, with a rope that is 80 feet long. What is the maximum
    8·1 answer
  • -
    10·1 answer
  • If f(x) = x and g(x) = 2x + 7, what is<br>f[90X)] when g(x) = 11?​
    5·1 answer
  • Round 249,982 to the nearest hundred​
    9·2 answers
  • PLEASE HELP ME!! IM CURRENTLY DOING A DIAGNOSTIC AND HAVE ONLY 15 MINS LEFT !!!!! A toilet paper roll has a diameter of 8x and a
    5·1 answer
  • A bank sends its customers an email when their accounts fall below —$1. Which inequality models this situation?
    14·1 answer
  • What's 24 -3 (7-5) to the power of two over (+8) (-6) ÷ (+12)?
    10·1 answer
  • Anyone who understands this?
    12·2 answers
  • Corinna rowed 4/5 mile on a rowing machine in 1/6 hour. What is her rowing rate in miles per hour
    9·1 answer
  • Mini Sweets bake shop is running a special on cupcakes. For every 10 cupcakes purchased, 3 free cupcakes are added to the order.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!