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
vekshin1
1 year ago
10

Complete the square to solve the equation below. check all that apply. x^2 + 8x - 1 = 19

Mathematics
2 answers:
Andreas93 [3]1 year ago
8 0
X=-10,x=2.I hope this helps.
Art [367]1 year ago
6 0

Answer:

B and D

Step-by-step explanation:

First take the equation and subtract 19 on both sides. You get x^2+8x-20=0

using the quadratic formula you get x= (-8 + or - root (8^2 -4(1)(-20)))/ 2(1)

simplify it and you get x= (-8 +or- 12) / 2  

Separate the equation into two and you get (-8 + 12) / 2    and (-8 - 12) / 2

first one gives: 4/2=2

second gives -20/2=-10

answer x=-10,2

You might be interested in
HELP MEEE!! Please evaluating a compound. Inequality using a graph
Irina-Kira [14]

Answer:

\frac{x}{2}

Step-by-step explanation:

From the graph, we can conclude that,

x is less than 2 and not including as there is a hollow circle at the mark 2.

Also, x is greater than or equal to 7 including 7 as there is a solid circle at the mark 7

So, the compound inequality will be x

Now, the option that simplifies to the above inequality is the required answer.

Let us check the first option.

\frac{x}{2}

\frac{x}{2}

Therefore, option 1 simplifies to the above compound inequality.

So, the correct answer is option 1.

6 0
3 years ago
What will be the value in twenty years of $1000 invested at the end of each year for the next twenty years?
denis23 [38]
The formula for yearly compound interest is A(1 + r)^t

Where is A = 1000, r = 8%, t = 20

1000(1 + .08)^{20} = 4660.96

The answer is $4660.96
3 0
2 years ago
Ame
crimeas [40]

Answer:

Concept: Mathematical Analysis

  1. 2 friends share 56
  2. 5- 10 dollar bills and 6- one dollar
  3. We split the bills in half to equate equal change.
  4. Hence 5 bills ÷2= 2.5 or 25 dollars
  5. 6 bills÷2= 3 or 3 dollars
  6. You need to make change for the 10 dollars, break a bill into 5's
3 0
2 years ago
USA test prep please answer
sergij07 [2.7K]

Answer:

D

Step-by-step explanation:

8 0
2 years ago
I need help asap my friends
Talja [164]

Answer:

The first one 24/4

Step-by-step explanation:

Into usually means divide when it's used as a math term,

therefore 24 into fourths means 24 divide by 4.

7 0
3 years ago
Other questions:
  • A test has thirty questions worth 100 points. The test consists of True/False questions worth 3 points each and multiple choice
    6·2 answers
  • The fastest car on Earth, a German-made Thrust SSC, would win every NASCAR race in America. If it takes 30 minutes to travel 380
    15·1 answer
  • Find the values of x and y.
    14·1 answer
  • Someone please help with these
    9·1 answer
  • What is 12 5/13 as an improper fraction
    11·2 answers
  • A successful basketball player has a height of 6 feet 11 ​inches, or 211 cm. Based on statistics from a data​ set, his height co
    7·1 answer
  • What is the volume in cubic centimeters of a rectangular prism that has a length of 6.2 centimeters, a width of 3.5 centimeters,
    15·2 answers
  • F(x)=-2x^2+3x+7 find f(3)
    12·1 answer
  • Which number line represents the solution set for the inequality 2x - 62 6(x-2) + 8?
    12·1 answer
  • The directrix and focus of a parabola are shown on the graph. Which is an equation for the parabola?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!