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
ruslelena [56]
3 years ago
5

Determine the values of the variable for which the expression is defined as a real number. (Enter your answer using interval not

ation.) Squareroot (5x2 − 27x + 10)
Mathematics
1 answer:
Komok [63]3 years ago
5 0
The expression: sqrt ( 5 x² - 27 x + 10 )
A real number is a square root of a positive number.
x 1/2 = ( 27 +/- sqrt ( 729- 200 )) / 10
x 1/2 = ( 27+/- 23 ) / 10
x 1 = 4/10 = 0.4
x 2 = 50/10 = 5
Answer:
The expression is defined as a real number for:
x ∈ ( - ∞, 0.4 ] ∪ [ 5, + ∞ ). 
You might be interested in
Please help, I really desperate
Paladinen [302]

Answer:

V candle ≈ 196.9 cm³

Step-by-step explanation:

Volume of cone = ( π·r²·h)/3

V candle = V big cone -V small cone

V candle = [ π·4²·(8+5) - π·2²·5]/3

V candle = ( π·16·13 - π·4·5)/3

V candle = (π·16·13 - π·4·5)/3

V candle = π·(208 - 20)/3

V candle = π·188/3

V candle = 196.8731396

V candle ≈ 196.9 cm³

8 0
2 years ago
A ferryboat makes four trips to an island each day.The ferry can hold 88 people.If the ferry is full on each trip,how many passe
olga_2 [115]

Multiplication was invented to reduce the work involved in repeated addition.

... 88 + 88 + 88 + 88 = 4×88 = 352

352 passengers are carried <em>to</em> the island each day.

_____

Some questions must be answered before we can give a definite answer.

1. If the same person rides twice, are they counted twice?

2. Are passengers on the return trips (<em>from</em> the island) counted?

3. If return trip passengers are counted, is the ferry full on those trips?

4. Does every passenger to the island return the same day?

5. Does any passenger go to the island more than once per day?

4 0
3 years ago
Pleeaaaaassssssseeeee help for brainlist and 100 points
emmainna [20.7K]

Answer:

Part A: C, Part B: A, E, i, K  160 cm, A: 21, Use PEMDAS and you get 13 5/7.

Step-by-step explanation:

1.6 x 100 meters = 160 centimeters

3 x 7/1 = 21/1 = 21

3 0
3 years ago
Read 2 more answers
Explain the areas in which you will find integration to be significant in your day to day work as an EHT.
andrey2020 [161]

Answer:

Step-by-step explanation:

An EHT is an Environmental Health Technician. Integration (Integral Calculus, if that's what you mean) will be applied to an Environmental Health Technician's job in the following way:

1. In the analysis or examination of samples from an environment, such as soil sample, water sample, domestic waste sample, septic waste sample, etc.

Essentially, Integral Calculus (and other forms of Maths) must be studied, before a person is able to be an Environmental Health Technician.

Degrees in any of the following fields are a necessary criterion;

- Applied Science

- Public Health

- Environmental Science

- Biochemistry

- Health Data Analysis

7 0
3 years ago
Which pair of measurements are possible if they are congruent figures?
Marta_Voda [28]

Answer:Measure of angle X=140 degrees and Measure of angle Y= 94 degrees.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Which ordered pair is a solution to the system of linear equations?
    14·2 answers
  • What will the short order cook be paid for a 40 hour work week
    10·1 answer
  • last year, Carmen opened an investment account with $7400. At the end of the year, the amount in the account had decrease buy 26
    9·1 answer
  • Suppose 25 out of 175 people said they like to play disc golf and 5 out of every 12of the players have a personalized flying dis
    10·1 answer
  • A salesman sells cars with prices ranging from $5,000 to $45,000. the histogram shows the distribution of the numbers of cars he
    10·1 answer
  • Need help asap 50 POINTS!!!! A digital camera memory card is one fourth full. The card is two thirds full when 375 more pictures
    12·2 answers
  • 3. How
    5·1 answer
  • Mr. Starnes wondered what proportion of Katy Perry's Twitter followers are
    5·1 answer
  • Simplify: xy^2(-2x)(3xy)(-4x^2y)1/8x^2y^3
    9·1 answer
  • Max found a jacket on sale for 35% off its original price. What per cent of the actual cost will Max pay for the coat?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!