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
Makovka662 [10]
3 years ago
5

What is the interval notation for the compound inequality? x ≤ −4 or x ≥ 5

Mathematics
1 answer:
torisob [31]3 years ago
8 0

Answer:

(-∞, -4] ∪ [5, ∞)

Step-by-step explanation:

Hi!

Alright, so greater (or less) than or equal to is denoted with a bracket.

If x is less than or equal to -4, then the bracket is on the left side.

(___, -4]

Because x is <em>any</em> number under or equal to -4, x can range from negative infinity. However, we use a parentheses for infinity because infinity can never truly be reached.

So, x \leq -4 = (-∞, -4]

X\geq5

Equal to = bracket

X is any number above 5, so

[5, ∞)

Because we want both of these, we use the union sign (∪)

so,

= (-∞, -4] ∪ [5, ∞)

You might be interested in
8) can u answer this question pls
Vsevolod [243]

Answer: 346.19cm²

Step-by-step explanation:

π= 3.14

Divide 21 (the diameter) by 2 to get the radius( it 's half of the diameter). so the radius is 10.5

Area= πr²

       = 3.14x10.5x10.5

       = 346.185

So next round up the value you got to the nearest tenth, so when u round up to the nearest tenth you get 346.19

3 0
2 years ago
Find the sum of the arithmetic series<br> 3+8+13+..+438
irina [24]

Answer:

19404

Step-by-step explanation:

sum of arithmetic series is

Sn = n/2 (2a + (n-1)d)

or

Sn = n/2 (a + an)

a = 1st unit

an = last unit

d = difference

8-3 or 13-8 so d = 5

then first step is to find the value of n

an = a + (n-1)d

438 = 3 + (n-1)5

438 - 3 = 5n - 5

435 = 5n - 5

435 + 5 = 5n

440 = 5n

n = 440/5

n = 88

then we can find the sum

Sn = 88/2 (3 + 438)

S88 = 19404

7 0
3 years ago
Which of the following is true about a line? It has one endpoint. It has two endpoints. It has two dimensions. It has one dimens
34kurt
It has one dimension
4 0
3 years ago
Jorge is looking to buy a new computer. The computer he wants to buy costs $860. He has already saved $210. If he earns $162.50
Tamiku [17]

Answer:

it would take 4 weeks to buy his computer

Step-by-step explanation:

2 weeks=324

the 50 cents in 2 weeks =100

210+324=523

523$ in 2 weeks

523+324=858

856$ in 4 weeks

add the 4 weeks of 50 cents.

50x4=200=2.00$

2.00+858=860$

tadaaaaaa

Step-by-step explanation:

4 0
3 years ago
Use the diagram to answer the questions.
emmasim [6.3K]

Answer:

Line m is not parallel to Line n.

Line m is perpendicular to Line k

Step-by-step explanation:

1. Calculate slopes of n and m. N = -2 and M = -7/4. The two slopes aren't the same thus they are not parallel

2. Slope of m = -7/4 and k = 4/7. By definition of perpendicular these two fit the description. (to be perpendicular, k = -1/m

3 0
3 years ago
Other questions:
  • Maria needs to buy shoes for $50, jeans for $40, and a shirt for $20. She has a coupon that gives her a discount of x percent on
    15·2 answers
  • Suppose triangle DEF = triangle WXY. Which choice below shows corresponding parts to congruent triangles that are congruent? Exp
    7·1 answer
  • Find the volume for each rectangular prism
    15·2 answers
  • Round 99.20 to the nearest ten
    11·2 answers
  • Help with these plz. a.
    6·1 answer
  • Consider the series 7/9+7/27+7/81+1/243 Which expression defines Sn?
    5·2 answers
  • Y=-5x + 22<br> -2x - 8y = 14
    13·1 answer
  • Only need A for number 1 and B for number 2
    7·1 answer
  • Solve the compound inequality 2(x-2)+7&gt;-1 and 5-4x&gt;9
    14·1 answer
  • Complete each trinomial such that it can be rewritten in the form a(x+b)^2 or a(x-b)^2
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!