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
LenKa [72]
3 years ago
9

What is disk used on a place value chart

Mathematics
1 answer:
enot [183]3 years ago
3 0
These concepts become more clear when teachers use number disks instead of base ten blocks. Place value is a very important concept for elementary students because base ten is the foundation of our number system.
You might be interested in
3a + 6 = a<br><br><br> 7th Grade Linear Question
castortr0y [4]
A= -3 hope this helped:)



3 0
3 years ago
Read 2 more answers
Which BEST explains the expression x( y z + 1 2 )? A) x depends on ( y z + 1 2 ). B) ( y z + 1 2 ) depends on x. C) x and ( y z
Alekssandra [29.7K]

9514 1404 393

Answer:

  D)  x and ( y z + 1 2 ) are independent of each other

Step-by-step explanation:

Assuming this is not intended to be describing a function named x with an argument of yz+12, the variables in any expression are assumed to be independent of each other, unless additional information is provided showing their dependencies.

Here, there is no such additional information, so we must assume ...

  x and (yz +12) are independent of each other

_____

<em>Additional comment</em>

The assumption stated in the answer is intended to ensure we're not concerned with something of the form ...

  g(x)

which is an expression saying 'g' is dependent on 'x'. If we know 'g' is a function name, then g(yz+12) will make 'g' be dependent on (yz+12).

Similarly, if x(a) is intended to mean that x is a function of 'a', then the corresponding x(yz+12) will mean that x is dependent on (yz+12). This would be quite unusual, since letters toward the end of the alphabet are usually used for variable names, while letters in the middle of the alphabet are used for function names.

8 0
2 years ago
Please help! A-level maths.
astra-53 [7]

x+y=k\implies y=k-x

Substitute this into the parabolic equation,

k-x=6-(x-3)^2\implies x^2-7x+(k+3)=0

We're told the line x+y=k intersects C twice, which means the quadratic above has two distinct real solutions. Its discriminant must then be positive, so we know

(-7)^2-4(k+3)=49-4(k+3)>0\implies k

We can tell from the quadratic equation that C has its vertex at the point (3, 6). Also, note that

-1\le\sin t\le1\implies3\le3+2\sin t\le5\implies3\le x\le5

and

-1\le\cos2t\le1\implies2\le4+2\cos2t\le6\implies2\le y\le6

so the furthest to the right that C extends is the point (5, 2). The line x+y=k passes through this point for 2+5=k\implies k=7. For any value of k, the line x+y=k passes through C either only once, or not at all.

So 7\le k; in set notation,

\{k\mid 7\le k

4 0
3 years ago
Find the area<br> top/bottom: 10.8<br> sides: 8.7
mihalych1998 [28]
93.96. You multiply them together to get the answer.
4 0
3 years ago
What does a closed circle on a number line indicate? Is it the solution does not include that number?
Lilit [14]
No, a closed circle does include that number.

Closed circles are used for greater than or equal to or less than or equal to
Open circles are only used for greater than or less than

3 0
2 years ago
Other questions:
  • -7x-5(4x+8)=149<br><br> how do i solve this problem
    5·2 answers
  • What is the value of x in the equation 2x+3y=36 when y=6
    12·2 answers
  • The sum of two numbers is 50. One number is 10 less than three times the other number. What are the two numbers? 25 and 25 45 an
    15·1 answer
  • Choose the solution to this inequality.
    14·1 answer
  • A hyperbola has its center at (0,0), a vertex of (20,0 and an asymptote of y= 13/20x. find the equation that describes the hyber
    6·1 answer
  • The sum of y and 20 is less than 37
    8·1 answer
  • Which equation describes how the parent function, y = x cubed, is vertically stretched by a factor of 4?
    12·2 answers
  • How many letters can be typed each day in the office?
    8·1 answer
  • Is this a right triangle 8,12,15
    11·1 answer
  • 6834/17 please show your work
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!