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
strojnjashka [21]
3 years ago
8

HDTV screens usually have a width-to-heigh ratio of 16:9. Which screen dimensions are in the same proportion?

Mathematics
1 answer:
Lana71 [14]3 years ago
5 0

Answer:

4: 3

Step-by-step explanation:

In this case, we have that there is a relationship between width and height, which is 16: 9, which means that any screen that has the same ratio would be an identical screen.

How would we do this? it must either be raised to a power or rationalized on both sides of the ratio.

If we raise to a power, it would give very large dimensions for an HDTV, therefore, it is best to remove the square root on both sides, since it has more common values for a TV.

\sqrt{16} :\sqrt{9}

4: 3

Therefore, a 4: 3 screen is a good choice for an HDTV with the same ratio.

You might be interested in
How much does it cost to fix a chipped tooth?
Nina [5.8K]
Chipped toothed
Bit of a potato
Let's hope ya don't get fried
And the dentist on the phone
5 0
3 years ago
Recursive formula for the sequence 9,11,13,15
nasty-shy [4]

Answer:

idkmbb

Stepidk-by-step explanation:

4 0
3 years ago
Check the true statements below:
valentinak56 [21]

Answer:

a) False

b) False

c) True

d) False

e) False

Step-by-step explanation:

a. A single vector by itself is linearly dependent. False

If v = 0 then the only scalar c such that cv = 0 is c = 0. Hence, 1vl is linearly independent. A set consisting of a single vector v is linearly dependent if and only if v = 0. Therefore, only a single zero vector is linearly dependent, while any set consisting of a single nonzero vector is linearly independent.

b. If H= Span{b1,....bp}, then {b1,...bp} is a basis for H. False

A sets forms a basis for vector space, only if it is linearly independent and spans the space. The fact that it is a spanning set alone is not sufficient enough to form a basis.

c. The columns of an invertible n × n matrix form a basis for Rⁿ. True

If a matrix is invertible, then its columns are linearly independent and every row has a pivot element. The columns, can therefore, form a basis for Rⁿ.

d.  In some cases, the linear dependence relations among the columns of a matrix can be affected by certain elementary row operations on the matrix. False

Row operations can not affect linear dependence among the columns of a matrix.

e. A basis is a spanning set that is as large as possible. False

A basis is not a large spanning set. A basis is the smallest spanning set.

3 0
3 years ago
4. A mountain climber needs to descend 2,000 feet.
DENIUS [597]

Answer:

C. 500 ft

Step-by-step explanation:

If we want to make it all equal, we can divide the 2,000 ft by 4 because we have 4 equal descents.

2000 ÷ 4 = 500

He should travel <u>500 feet</u> in each descent.

8 0
3 years ago
Alyssa took a math test with 30 questions, and she answered 24 questions correctly in order to get an a, she needs to answer at
koban [17]

Answer:

<u><em>No, she got an 80%</em></u>

Step-by-step explanation:

For every 3 questions she got right, that's 10%.

24/3= 8, which can be turned into 80%

So the answer is<u><em> no</em></u>.

6 0
3 years ago
Other questions:
  • Subtract. (−8.3x+4)−(3.2x−5) Enter your answer, in simplified form, in the box.
    13·2 answers
  • #7 what is the image of (6,-2) under the translation.
    13·1 answer
  • Find an identity for cos(4t) in terms of cos(t)?
    6·2 answers
  • Explain plz!!! Explain
    9·1 answer
  • –20 ÷ 5 = <br><br> I need help
    13·1 answer
  • Type the correct answer in the box. Write your answer as a whole number.The radius of the base of a cylinder is 10 cm, and its h
    9·1 answer
  • 3k+7k-2=6k+16 answer?
    8·2 answers
  • Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
    9·2 answers
  • If STUV is a rectangle, find the measure of angle SUT
    12·1 answer
  • Pls pls pls help me with this
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!