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
Lilit [14]
3 years ago
8

If 5x + x² > 100, then x is not 10 8 7 9

Mathematics
1 answer:
ycow [4]3 years ago
8 0
We will solve the equation:
x^2+5x-100≥0 x_{12} = \frac{-5\pm \sqrt{25+400} }{2}= \frac{-5\pm20.6}{2}      x1≈-12.8   x2≈ 7.8
It means that x∈ (-∞, -12.8 ) ∪ (7.8, +∞ ).
Answer: C) x ≠ 7
Thank you.

You might be interested in
Help PLEASESSS due in 20
kicyunya [14]
  1. 4 - 4 + 4 ÷ 4
  2. 4 ÷ 4 + 4 ÷ 4
  3. (4 + 4 + 4) ÷ 4
  4. √4 + √4 + 4 - 4
  5. √4 + 4 + 4 ÷ 4
  6. √4 + 4 + 4 - 4
  7. 4 + 4 - 4 ÷ 4
  8. 4 + 4 + 4 - 4
  9. 4 + 4 + 4 ÷ 4
  10. √4 + √4 + √4 + 4
  11. 44/(√4 + √4)
  12. √4 + √4 + 4 + 4
  13. 44/4 + 4
  14. 4 + 4 + 4 + √4
  15. 44/4 + 4
  16. 4 * 4 * 4 ÷ 4
  17. 4 * 4 + 4 ÷ 4
  18. 4 * 4 - √4 + 4
  19. 4! - 4 - 4 ÷ 4
  20. 4 * (4 + 4 ÷ 4)
  21. 4! - 4 + 4 ÷ 4
  22. 4 * 4 + 4 + √4
  23. 4! - √4 + 4/4
  24. 4 * (√4 + √4 + √4)
  25. 4! + √2 - 4 ÷ 4
  26. 4! + √4 + 4 - 4
  27. 4! + √4 + 4 ÷ 4
  28. 4! + 4 + 4 - 4
  29. 4! + 4 + 4 ÷ 4
  30. 4! + √4 + √4 + √4

Lol, that took a while, hope it helps!

7 0
3 years ago
Paul rides his bike for 2 hours at a constant rate of 20 mph. He then bikes for 3 hours at a constant rate of 25 mph. How far di
Schach [20]
In 5 hours Paul travelled 115 miles
4 0
3 years ago
Which expression is an irrational number?A. 1/9 <br><br> B.0.4 <br><br> C. √15 <br><br> D. √36
Daniel [21]
C is irrational because there is no definite square root for 15 whereas the square root of 36=6
3 0
3 years ago
Read 2 more answers
Find X, AB, BC, and AC if B is the midpoint of AC
Mkey [24]

Answer:

x=6, AB=61, BC=61, AC=122

Step-by-step explanation:

AB=BC \\ \\ 10x+1=8x+13 \\ \\ 2x=12 \\ \\ x=6 \\ \\ AB=BC=61 \\ \\ AC=122

4 0
1 year ago
PLEASE HELP! I have a picture of the question below :)
Charra [1.4K]

3. ∠1+∠2=180° and ∠2+∠3=180°

4. they are supplementary

5. ∠1+∠2=180°=∠2+∠3

6. ∠1+∠2=180°=∠2+∠3

∠2 are same in both side so ∠1=180°-∠2 =∠3=180°-∠2

7.

6 0
2 years ago
Other questions:
  • The 12-inch diameter pizza for $12.50 or the 20-inch diameter pizza for $17.50.
    7·1 answer
  • Simplify the expression. Write the answer in scientific notation
    7·1 answer
  • Which best describes the solution set for the inequality below?
    10·1 answer
  • 45 Points!!!!!!!!!!
    9·2 answers
  • The front and back covers of a text book are each 0.3 thick between the cover are 200 sheets of paper each 0.008 cm thick how hi
    15·1 answer
  • 18.2 is 14.5 of what number?
    13·1 answer
  • Which graph represents the solution set of - 4x - y &lt;- 6?
    12·2 answers
  • Which of the following can be used to find the volume?
    12·2 answers
  • Complete the statements.
    11·2 answers
  • What is x/y ? Help pls
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!