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
Mrrafil [7]
3 years ago
12

What are the solutions to the equation x2 + 16x – 28 = 0?

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0
(x+14)(x-2)=0

x+14=0. x-2=0
x=-14. OR. x=2
You might be interested in
What is the 7th geometric sequence in 2,6,18,54?
allsm [11]
Okay so for each one it gets multiplied by three. We have four terms so we need to find three more. 54·3=162 162·3=486 486·3=1458  2,6,18,54,162,486,1458 1458 is your answer I hope this helps you
5 0
3 years ago
If 32 teams participate in a standard single elimination tournament, how many games must be played to decide a champion?
SCORPION-xisa [38]
<h3>Answer: 31 games</h3>

======================================================

Explanation:

  • 32/2 = 16 games will happen in round 1. Afterward, 16 teams are left.
  • 16/2 = 8 games will happen in round 2. Afterward, 8 teams are left.
  • 8/2 = 4 games happen in round 3.
  • 4/2 = 2 games in round 4.
  • 2/2 = 1 game as the final championship.

Count the number of times you divide by two and we have five occurrences of this. So there five rounds overall.

To get the total number of games played, we add up the quotients

16+8+4+2+1 = 31

----------------

Or as a shortcut we can simply subtract off 1 since 1+2+4+...+2^n = 2^(n+1)-1

We can write that rule as

\displaystyle \sum_{k=1}^{n}2^k = 2^{n+1}-1

which is equivalent to

\displaystyle \sum_{k=1}^{n}2^{k-1} = 2^n-1

3 0
4 years ago
In 1 minute I typed “It is as it was.” 8 times. So what is the dependent variable?
Elina [12.6K]
The dependent variable is the number of times you have typed. This is because time is the independent (x) variable as the number of times you've typed is the dependent (y) variable.
5 0
3 years ago
What percent is 457 is 41.13?
yan [13]
<span>41.13 is 9% of 457
hope this helps</span>
3 0
3 years ago
The sides of a rectangle are 3t - 2 and 5t + 7. Write an expression for the perimeter of the rectangle.
natka813 [3]
How does this have anything to do with factoring?
Perimeter of the rectangle would just be 2(3t-2)+2(5t+7)
Simplify that to get 6t-4+10t+14, then 16t+10
6 0
4 years ago
Other questions:
  • A line passes through the points (-4,3) and (0,0). what is the slope of the line
    14·1 answer
  • Compare each of the functions shown below: f(x) sine curve with points at 0, 0 and pi over 2, 4 and pi, 0 and 3 pi over 2, negat
    7·1 answer
  • Help please highschool is hard &gt;:(
    10·1 answer
  • Denzel wants to walk to the store from his house but he is not sure how far away it is. Find the distance between his house
    11·1 answer
  • 1. Is the function linear or nonlinear?
    13·1 answer
  • I need help please!!
    8·1 answer
  • What is the missing number?<br> 700,000 + 8 +<br> + 40,000 = 740,028
    8·2 answers
  • DUE MIDNIGHT PLEASE HELP &lt;33
    10·2 answers
  • A portion of the graph of f(x) = −x2 + 6x − 5 is shown. Which of the following describes all solutions for f(x)? a partial parab
    13·1 answer
  • HELP PLEASE PLEASE HELP URGENT PLEASE HELP
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!