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
ollegr [7]
3 years ago
5

To complete the square for x2 + 8x = -7

Mathematics
1 answer:
pshichka [43]3 years ago
5 0
To complete the square, you would add to both sides (8/2)^2 = (4)^2 = 16. So, the correct answer would be D.
You might be interested in
An initial investment of $100 is now valued at $150. The annual interest rate is 5%, compounded continuously. The equation 100e0
nikitadnepr [17]

Answer:

8\ years  

Step-by-step explanation:

we know that

The formula to calculate continuously compounded interest is equal to

A=P(e)^{rt}  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest in decimal  

t is Number of Time Periods  

e is the mathematical constant number

we have  

t=?\ years\\ P=\$100\\A=\$150\\ r=0.05  

substitute in the formula above  

150=100(e)^{0.05*t}  

1.5=(e)^{0.05*t}  

Applying ln both sides

ln(1.5)=(0.05t)ln(e)  

ln(1.5)=(0.05t)  

t=ln(1.5)/(0.05)  

t=8\ years  

8 0
3 years ago
Read 2 more answers
What is the area of this triangle?
Nikolay [14]

Answer:13.1

Step-by-step explanation:

Area equation:S=S=\frac{1}{2} ab sinθ

4 0
2 years ago
Brisa is 2 years older than Aja. Damaris is 1 year younger than half of Brisa's age. The sum of all their ages is 27.
kirill [66]

brisa is 12.5 aja is 10.5 and damaris is 4

7 0
3 years ago
PLEASE HELP!!! <br> Which expression shows a way to find the area of the following rectangle?
nasty-shy [4]

Answer:

B

Step-by-step explanation:

This rectangle appears to have 7 boxes on the bottom, and 3 box for the side.

Since area is base×height

It would be 7×3

6 0
3 years ago
Read 2 more answers
Determine the solution on the interval [0, 2pi] for the equation<br><br><br><img src="https://tex.z-dn.net/?f=sec%5E%7B2%7D%20x-
AleksAgata [21]

Step-by-step explanation:

sec² x − 2 = 0

sec² x = 2

cos² x = ½

cos x = ±√½

x = π/4, 3π/4, 5π/4, 7π/4

5 0
3 years ago
Other questions:
  • Find the sum of the $x$-coordinates of all possible positive integer solutions to $\frac1x+\frac1y=\frac17$.
    14·1 answer
  • Please help
    15·2 answers
  • Need answers please
    13·1 answer
  • Algebra problem<br> Pls help
    15·1 answer
  • 6. About 0.8% of the land in Maine is federally owned. If
    15·1 answer
  • Please explain how you got this answer.<br><br> -Aparri
    8·1 answer
  • Despite reports that dark chocolate is beneficial to the heart, suppose that 47% of adults still prefer milk chocolate to dark c
    11·1 answer
  • I really need help!!!ASAP!!!My homework is due tomorrow!!​
    6·1 answer
  • Name the plane parallel to the plane AEF
    13·1 answer
  • WHY IS IT SO HARD FOR PPL TO HELP ONE LITTLE GIRL THAT IS ONLY 11 ALL SHE ASK IS PPL NICE PPL TO HELP HER SHE NEEDS HELP ITS NOT
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!