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
Vesnalui [34]
3 years ago
5

Select the correct answer. Solve the equation using the method of completing the square. 2r2 + 16r - 8 = 0​

Mathematics
2 answers:
adoni [48]3 years ago
8 0

Answer:

r=-4+2\sqrt{5}, r=-4-2\sqrt{5}

hram777 [196]3 years ago
8 0
Did you try using photo math or math away
You might be interested in
What is the slope of a line that is parallel to the line represented by the equation x – y = 8?
malfutka [58]
Hi there!

Since the slope of a lime that is parallel is always the same, the answer is a. -1.

Since the slope of this equation is -1, the slope of any other parallel line is the same (or else the lines would intersect and not new parallel anymore).

Hope this helps!
7 0
3 years ago
What is 8 divided by 1544 ? <br> PlZ i need help !!!
bija089 [108]
Its 153. you can’t exactly divide 8 by 1544. if you wanted it to be a whole number it would be 1544 by 8. which is 152
8 0
3 years ago
Matt is standing on top of a cliff 305 feet above a lake the measurement of the angle of depression to a boat on the lake is 42
sashaice [31]

Answer:

The boat is approximately 338.74 feet from the base of the cliff. If the problem suggests rounding to the nearest whole number, you should use 339 ft.

Step-by-step explanation:

Let's draw the right angle triangle associated with the problem (see attached image). Notice that the 305 ft height corresponds to the "opposite side" to the given acute angle of 42^o, and that the distance we need to find is the "adjacent" side to the given acute angle. Therefore, the appropriate trigonometric function to use is the "tangent", given that from it we can solve for the unknown adjacent side "x":

tan(42^o)=\frac{opposite}{adjacent} \\tan(42^o)=\frac{305}{x}\\x=\frac{305}{tan(42^o)}\\ x=338.74\,\, ft

5 0
4 years ago
With _______ insurance, the insured agrees to pay a specific premium each year until death.
Ghella [55]
The answer is A. life insurance that pays a benefit on the death of the insured and also accumulates a cash value.
7 0
4 years ago
Read 2 more answers
1) What is the area of square of length 5cm?
ASHA 777 [7]

Answer:

20 is my answer and the question is somehow confusing

7 0
2 years ago
Other questions:
  • 0.002 is 1/10 (fraction) of......
    6·2 answers
  • F F(x) = 8x, which of the following is the inverse of F(x)?
    12·1 answer
  • Please help me out please
    6·1 answer
  • What is the greatest common factor of 15n^5, 30n^3, and 45n^2
    9·2 answers
  • PLEASE HELP, PLEASE EXPLAIN YOUR ANSWER BECAUSE PEOPLE JUST GUESS ILL GIVE YOU BRAINYIEST
    7·2 answers
  • Emma starts a food blog. When the blog is launched, the number of site visits is 486. Every month, the number of site visits inc
    13·2 answers
  • A cyclist rides his bike at a rate of 18 miles per hour. What is this rate in kilometers per hour? How many kilometers will the
    5·2 answers
  • Select the correct answer.
    14·1 answer
  • What is the scale factor?
    10·2 answers
  • Find each missing length, make sure you give both exact AND approximate. Brainliest + 50pts
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!