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
Nikolay [14]
3 years ago
11

Rewrite the equation by completing the square: 2x²-3x-5=0

Mathematics
2 answers:
Nata [24]3 years ago
8 0

Answer:

(x-¾)² = 49/16

Step-by-step explanation:

0 = 2x² - 3x - 5

2x² - 3x = 5

Divide by the leading coefficient

x²-(3/2)x = 5/2

Complete the square

 coefficient of the x term: 3/2

 divide coefficient in half: ¾

 square it: (¾)²

 add (¾)² to both sides to complete the square and keep the equation balanced:

x²-(3/2)x + (¾)² = 5/2 + (¾)²

(x-¾)² = 49/16

If you need to solve for x:

x-¾ = ±√(49/16) = ±7/4

x = 5/2, -1

jekas [21]3 years ago
5 0

Answer: (x-5) (x+2) =0

Step-by-step explanation:

You might be interested in
Jane's basic insurance cost is $559.90 per year. Her insurance company offers a typical "safe-driver discount." What would be he
Travka [436]

559.90 - (559.9 \times 0.10) = 503.91

7 0
4 years ago
Is this answer is correct
Yuliya22 [10]
Yes, this answer is correct.
3 0
3 years ago
Read 2 more answers
What is the minimum price<br> $28, $36, $44, $59, $66, $71, $180
zlopas [31]
$28 because Minimum is the least or smallest amount REMEMBER THIS
4 0
4 years ago
Read 2 more answers
HELP ME OUT PLEASE I REALLY NEED SOME HELP ON THIS QUESTION PRETTY PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Alexxx [7]
Viewing the two equations (by graphing them), we can see that the y axis is the vertical one and the x axis is the horizontal one. If something were to be reflected over the y axis, it would be flipped around x=0 and the x value of every point would be multiplied by -1. If it was reflected over the x axis (y=0), every y value would be multiplied by -1. Taking two points that have the same absolute values, e.g. (-1, 0) and (1, 0)  (by absolute values I mean that (|-1|, |0|)=(|1|, |0|)=(1, 0)) we can see that -1*-1=1 and 1*-1=-1. Since they are the x values, it is reflected across the y axis - you are correct!


5 0
4 years ago
7. Which of the following could form a unique triangle? Select all that apply.
baherus [9]

Answer:

If you are given two lengths and an angle between them (called the included angle) can you produce a unique triangle? In this interactive, you will be given different sets of two sides with the included angle. For each set, see if more than one triangle can be produced.

Step-by-step explanation:

You used side-angle-side, or SAS, to construct the triangles in the interactive. It is important to note that SAS construction will always produce one, unique triangle. It does not matter how much you flip, rotate or move the triangle, the measurements will not change.  Even though the triangle may "look" different, it still has the same angle measures and side lengths.  The orientation of a shape will never change the dimensions, just the placement.

7 0
3 years ago
Other questions:
  • Serrians triangle has a height of 3x-4 and the base length is 8x+4 what is the area of the triangle
    8·1 answer
  • Determine whether each of the following statements is always, sometimes, or never true.
    11·1 answer
  • How to write 0.000085
    6·2 answers
  • How do i solve the problem -1/2 × 7
    7·2 answers
  • Two plus two plus four??
    14·2 answers
  • A kangaroo hops 2 kilometers in 3 minutes. At this rate, how long does it take the kangaroo to travel 5 kilometers?
    13·2 answers
  • What is the radius of the sphere
    7·1 answer
  • A parallelogram has a base of 9 inches and a height of 11 inches. What is the area? ​
    7·2 answers
  • Alice is making balloon bunches from 36 red balloons and 16 blue balloons. She wants the same number of red balloons and the sam
    5·1 answer
  • (x – 6)2 = y + 7, find the vertex.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!