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
Tems11 [23]
4 years ago
15

Solve: 16x2 − 81 = 0

Mathematics
2 answers:
MrRa [10]4 years ago
8 0

Answer:

x =±9/4

Step-by-step explanation:

16x^2 − 81 = 0

Add 81 to each side

16x^2 − 81 +81 = 81

16 x^2 =18

Divide by 16

x^2 =81/16

Take the square root of each side

sqrt(x^2) = sqrt(81/16)

x =±9/4

Musya8 [376]4 years ago
7 0

16 x 2 - 81

32-81

= -49

You might be interested in
Tim and Stacy are volunteers who are helping with the town marathon. They're expecting 260 participants, but only 156 has have r
Amiraneli [1.4K]

Answer:

45%

Step-by-step explanation:

hope it helps,

5 0
3 years ago
Read 2 more answers
Is 1.7x^2 + 3.5 a cubic polynomial?
devlian [24]

Answer:

No, it is not.

Step-by-step explanation:

This is because if you look at the expression, there is no term that is raised to the cube root. As a result, this isn't a cubic polynomial. However, this would be a quadratic polynomial cause the highest raised exponent is 2, which is the number for quadratic.

If you liked my response, please consider giving me a Brainliest! Thanks!

8 0
3 years ago
What are the differences between 0.08 and 0.8
Anon25 [30]
0.8 is greater than 0.08, the reason for that is that 0.8 is equal to 8/10=80/100 and 0.08 is equal to 8/100. As a percentage, 0.8 would be 80% and 0.08 would be equal to 8%.
5 0
4 years ago
What kinds of sports are played by one person?
Citrus2011 [14]
The answer for this is b
8 0
2 years ago
I need help with this please
34kurt

Answer:

I hope this helps!

7 0
3 years ago
Other questions:
  • A single die is rolled. Find the probability of rolling an even number or a number less than 4
    15·2 answers
  • For every 7 glasses wearers in a Classroom,there are about 13 non glasses wearers.If there are 32 students in a entire class how
    6·1 answer
  • Write the definition of a class Clock. The class has three instance variables: One of type int called hours, another of type boo
    11·1 answer
  • What is the slope in the equation: y=4x+3
    12·1 answer
  • 4x - 22 = 62 + 2x<br> 15 points
    9·2 answers
  • Use substitution to solve the system of equations y=x+1.75 4x-2y=4
    5·2 answers
  • Please show me how to COMPLETELY factor this expression.
    9·1 answer
  • Is the formula used to calculate ________.
    14·1 answer
  • What is the trigonometric ratio for sin C?
    10·1 answer
  • I will mark brainlist !!!!!!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!