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
lesya692 [45]
3 years ago
6

Braces are used in interval or roster notation?

Mathematics
1 answer:
bogdanovich [222]3 years ago
8 0
Braces, also called curly brackets in used to list the elements of a set in a roster notation.

While parenthesis is used in interval notation.
You might be interested in
Find the equation of the normal to the curve y=x^2-2x^2-4x+1 at thepoint (-1,2)​
balandron [24]

Answer:

y=-\frac{1}{3}x+\frac{5}{3}

Step-by-step explanation:

Assuming that the first exponent in the formula for the curve should be 3, not 2...

y=x^3-2x^2-4x+1

The derivative is

y'=3x^2-4x+4

The slope of the tangent line at the point (-1, 2) is the value of the derivative at x = -1.

y'|_{x=-1} = 3(-1)^2-4(-1)+4=3-4+4=3

The slope of the normal line is the opposite reciprocal of the slope of the tangent line.

m_{\text{normal} = -\frac{1}{3}

Using the Point-Slope form of a linear equation, the normal line is

y-2=-\frac{1}{3}(x-(-1))\\y-2=-\frac{1}{3}(x+1)\\y=-\frac{1}{3}x-\frac{1}{3}+2\\y=-\frac{1}{3}x+\frac{5}{3}

5 0
2 years ago
1. Explain why n root a^n= |a| when n is even, but not when n is odd.
kogti [31]

Step-by-step explanation:

In the expression a^n, for integer values of n greater than 1, there are n factors. For example, a^2 = a * 2 (2 factors), a^3 = a * a * a (3 factors), etc.

For a non-negative value of a, a^n is non-negative for all values of n.

If a is negative, and n is even, then a^n is non-negative.

If a is negative, and n is odd, then a^n is negative.

|a| is non-negative for all values of a.

sqrt_n(a^n) is negative for negative a and odd n, but |a| is always non-negative, so sqrtn(a^n) cannot equal |a| for odd n.

8 0
3 years ago
The vagabonds were 200 miles apart at 2 p.M and were headed toward each other if they met at 6 p.M and one was traveling 10 mile
muminat

Answer:

<em>The answer is 200</em>

Step-by-step explanation:

<em>To solve the question given, let us recall the following,</em>

<em>Let r4=200  miles apart</em>

<em>r=50 mph combined speed </em>

<em>Where </em>

<em>2f+10=50 </em>

<em>2f=40 </em>

<em>f=20 </em>

<em>f+10=30 </em>

<em>or we can express it in another way,</em>

<em>which is</em>

<em>f x4+(f+10)x 4=200 </em>

<em>f x4+f x4+40=200 </em>

<em>8f+40=200</em>

<em>Then</em>

<em>8f is =160 </em>

<em>f=20 </em>

<em>f+10=30 </em>

<em>Therefore,</em>

<em>4x 20+4 x 30=200 </em>

<em>80+120=200 </em>

<em>200=200</em>

<em />

8 0
3 years ago
Read 2 more answers
A soup can will have a radius of 4 cm and a
DENIUS [597]

Answer:

<h3>            It's about 365 cm²</h3>

Step-by-step explanation:

2×πr² + 2πr×h =

= 2×π×4² + 2π×4×10.5 =

= 32π + 84π =

= 116π ≈

≈ 364.42 cm²

5 0
2 years ago
What is the amount of down payment on the house that cost $65,250? ​
Zarrin [17]
Depends on how much percent you have to put down for the house. Like if it’s 10% then just subtract 10% from the cost of the house.
6 0
2 years ago
Read 2 more answers
Other questions:
  • Elaine has a desktop that is 4.5 feet by 5.5 feet, and she is going to cover it with patches of wallpaper that each measure 18 i
    13·1 answer
  • What is the simplified form of (4x2y3)3?
    11·1 answer
  • What is the slope of the line shown in the graph? (4 points)
    12·1 answer
  • Caroline and Ron have 11 goldfish and all Caroline has three more than Ron how many fish do they each have
    5·2 answers
  • The value of a certain rare stamp is 160% of its value three years ago if the stamp is worth $220 then what is it’s worth today
    8·2 answers
  • What is the answer and steps to the following equation: 6(4-z)=2z
    11·2 answers
  • What is the solution to the system of equations
    11·1 answer
  • Pls help!will give brainliest!
    14·1 answer
  • How do you solve 0.4m(40m-20n)
    9·1 answer
  • The triangles below are similar. Find the length of the missing side (giving brainliest and thanks to all!)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!