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
aniked [119]
4 years ago
12

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x – 4 = 0 for x?

Mathematics
1 answer:
Ket [755]4 years ago
7 0
Use the quadratic formula to find the solutions.<span><span><span><span>−b</span>±<span>√<span><span>b2</span><span><span>−4</span><span>(<span>ac</span>)</span></span></span></span></span><span>2a</span></span><span><span><span>-⁢b</span>±<span><span>b2</span><span><span>-4</span>⁢<span>a⁢c</span></span></span></span><span>2⁢a</span></span></span>Substitute the values <span><span>a=5</span><span>a=5</span></span>, <span><span>b=<span>−3</span></span><span>b=<span>-3</span></span></span>, and <span><span>c=<span>−4</span></span><span>c=<span>-4</span></span></span> into the quadratic formula and solve for <span>xx</span>.<span><span><span>3±<span>√<span><span><span>(<span>−3</span>)</span>2</span><span><span>−4</span>⋅<span>(<span>5⋅<span>−4</span></span>)</span></span></span></span></span><span>2⋅5</span></span><span><span>3±<span><span><span>-3</span>2</span><span><span>-4</span>⋅<span>5⋅<span>-4</span></span></span></span></span><span>2⋅5</span></span></span>Simplify.Tap for more steps...<span><span>x=<span><span>3±<span>√89</span></span>10</span></span><span>x=<span><span>3±89</span>10</span></span></span>The result can be shown in both exact and approximate form.<span><span>x=<span><span>3±<span>√89</span></span>10</span></span><span>x=<span><span>3±89</span>10</span></span></span><span>x≈1.24339811,<span>−<span>0.64339811</span></span></span>
You might be interested in
Pedro has a bag of flour that weighs 9/10 pound. he uses 2/3 of the bag to make gravy. how many pounds of flour does pedro use t
BARSIC [14]
Here is the solution of the given problem above.
First, let's analyze the question. 
Given: 1 bag = 9/10 pound
            2/3 bag = ? pound
What we are going to do is to divide 9/10 pound to 3.
so 9/10 divided by 3 and we get 9/30 and to simplify that, 3/10.
So per 1/3 of the bag, there is 3/10 pound. 
To get the weight for 2/3 of the bag, we multiply 3/10 by 2 and we get 6/10 or to simplify it, it is 3/5. Therefore, the 2/3 bag weights 3/5 pound. Hope this answer helps.
7 0
4 years ago
Read 2 more answers
40 POINTS IF YOU ANSWER CORRECTLY!
noname [10]

Answer:

Step-by-step explanation:

y is 15.49

Formula is b = √c^2-a^2

You could use sine [ opposite/hypotenuse ],

Cosine [adjacent/hypotenuse]

or Tangent [ opposite/adjacent ]

to find theta

Theta is 75.522

6 0
3 years ago
What is the slope of the point (1÷4,3÷2)and (-1,-3)​
Viefleur [7K]

Step-by-step explanation:<u>The slope calculator helps find the slope of any line through two given ... the slope of the line passing through the points (3,8) and (-2, 10) . ... A 1/20 slope is one that rises by 1 unit for every 20 units traversed horizontally.</u>

<u />

3 0
3 years ago
Read 2 more answers
The following were the recorded birth weights for babies born July 16, 2011: 8.1 lbs., 6.0 lbs., 4.7 lbs., 6.9 lbs., 5.6 lbs., 7
rodikova [14]
8.1 + 6.0 + 4.7 + 6.9 + 5.6 + 7.7 + 6.3 + 7.8 + 6.1 + 9.2 = 68.4/9 = 7.6
6 0
3 years ago
Help me please, I don't really get this at all.
Varvara68 [4.7K]

Answer:

b.

Step-by-step explanation:

Seats to minutes = 2 to 11:

2/11 = s/m.

When  s = 16:

2/11 = 16/m

m = 11*16 / 2

= 176/2

= 88  minutes.

When s =  19:

2/11 = 19 / m

m = 11*19 / 2

m  = 209/2

= 104.5 minutes.

6 0
4 years ago
Read 2 more answers
Other questions:
  • Which transformation was performed on triangle ABC to produce triangle A’ B’ C’
    13·1 answer
  • What is the net of a triangular prison?
    8·1 answer
  • PLEASE HELP ME ANSWER! im so desperate bro !!
    8·1 answer
  • Use the number line to find the coordinate of the point with a fraction
    6·1 answer
  • What is the value of -2xy if x = -1 and y = 6?<br><br> 8<br> 12<br> 26<br> -12
    5·1 answer
  • A line passes through the points (–1, 10) and (3, 2). Which shows the graph of this line?
    14·2 answers
  • If f(x) = 4x + 2 and g(x) = 2x – 7<br> find f(g(3)).
    13·2 answers
  • IS
    12·1 answer
  • Which of the following statements are true?<br><br><br> Please help..
    9·1 answer
  • Could someone help with the domain and range of these 2 graphs?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!