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
Law Incorporation [45]
3 years ago
13

lie is solving the quadratic equation by completing the square. 3x2 + 18x – 8 = 0 3x2 + 18x = 8 What should Lie do next?

Mathematics
2 answers:
ra1l [238]3 years ago
8 0

Answer: In the next step, he takes the factor 3 out of the variable terms and divide it to the other side.

Step-by-step explanation:

ruslelena [56]3 years ago
3 0
Divide 18 by 2(9) then square that (81). add 81 to both sides
You might be interested in
jennifer walks 8 miles in the same time she can jog 13 miles. if her jogging speed is 8mph faster than her walking speed, how fa
Elanso [62]

Answer:

12.8mph

Step-by-step explanation:

Let 'w' represent her walking speed

->if her jogging speed is 8mph faster than her walking speed

Jogging speed=  w+8

Using the time equation i.e time = dist/speed

For walking when distance is 8miles

time = dist / speed= 8/w hrs

For jogging when distance is 13miles

time = dist / speed= 13/(w+8) hrs

Equating the time

jog time = walk time

13/(w+8) = 8/w

By cross multiplying it

13w = 8w + 64

5w = 64

w=64/5

w=12.8mph

Therefore, 12.8mph is her walking speed.

5 0
3 years ago
Brainliest Answer!!!
AleksandrR [38]
Its fairly straightforward. Since the bottom equation only has one unknown,x, because y=1.3, you can plug y in and solve for x. Once you find the value of x, you then have the value for two variables, x and y, and again have one unknown coefficient a. To solve for the coefficient you just plug in your y value (1.3) and your x value (which can be rounded to 0.42). Using a little bit of algebra, you can then solve for a which should be a=2.108. I am not sure if your teacher wants you to solve it this way but you could also use the elimination method or substitution method that you would of learned when discussing system of equations. But no matter which way you do it, the math follows the rules. Hope this helps. I’d suggest you solve it yourself to double check my work.

To verify my credibility,
I am a Mechanical Engineering major w/ minor in mathematics
7 0
3 years ago
X/2-14=-20 I tried on this one but I failed.
KengaRu [80]

Answer: I’m not going to tell u the answer hrhrhehehehehehrhehsnheaj

Step-by-step explanation:

-34 answer

6 0
3 years ago
Read 2 more answers
Liberty solved the following equation 3 + 2x
frutty [35]

Where is the rest of the question
6 0
3 years ago
Read 2 more answers
F. By definition, two shapes are congruent if you can map one onto the other using rigid
ZanzabumX [31]

Answer:

they are the same because its a rigid transformation; rigid means the shape and size doesn't change.

3 0
3 years ago
Other questions:
  • 100 POINTS! first two people to give me a friend request get 100 points , a thank you, 5 star rateing , and a friend. the first
    8·2 answers
  • I cannot understand this AT ALL. for some reason..help?
    15·1 answer
  • The equation y+ 3 = 5(x - 3) represents a linear function. What is the y intercept of the equation
    10·1 answer
  • A city lot is 20 4/5 meters wide. It is 2 1/2 times as long as it is wide. How long is the city lot? Express your answer in simp
    12·2 answers
  • Ann took a taxi home from the airport. The taxi fare was \$2.10$2.10 per mile, and she gave the driver a tip of \$5$5. Ann paid
    11·1 answer
  • Can someone help me solve please<br><img src="https://tex.z-dn.net/?f=x%20%2B%202%20%5Csqrt%7Bx%7D%20%20-%203%20%3D%200" id="Tex
    13·2 answers
  • Please help with this question
    7·2 answers
  • Write the equation of the perpendicular bisector of the segment AB.<br> A (1, 5) and B (7, -1)
    15·1 answer
  • The equation of the line in the xy-plane that has slope 7/6 and passes through (9.-6) is
    11·1 answer
  • Please help me with this question. The answer is $745,000 but I need working out.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!