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
Oksanka [162]
3 years ago
13

PLS HELP ! Will give brainliest!

Mathematics
1 answer:
Rasek [7]3 years ago
3 0

Given:

The quadratic equation is :

16x^2-20x-6=0

To find:

The quadratic formula for the given equation after substituting the values.

Solution:

If a quadratic equation is ax^2+bx+c=0, then the quadratic formula is:

x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

We have,

16x^2-20x-6=0

In this equation, a=16,b=-20,c=-6.

Substituting a=16,b=-20,c=-6 in the above formula, we get

x=\dfrac{-(-20)\pm \sqrt{(-20)^2-4(16)(-6)}}{2(16)}

Therefore, the required quadratic formula for the given equation after substituting the values is x=\dfrac{-(-20)\pm \sqrt{(-20)^2-4(16)(-6)}}{2(16)}.

You might be interested in
If 30+12x represents the area of a partitioned rectangle, what could be expressions for the side lengths? List at least 5 possib
astra-53 [7]
1. 10+4x
2. 15+6x
3. 7.5+3x
4. 6+2.4x
5. 2/5x
4 0
3 years ago
Evaluate t - v when t = 7 and v = (-3)
Andru [333]
T-v
7-(-3)
7+3
10
the answer is 10
6 0
3 years ago
Read 2 more answers
The boys kept adding sand, and ten minutes later the volume of the sand cone had increased by 30%. What is the exact volume of t
RideAnS [48]

Answer:

a) 84π b) 109.2π

Step-by-step explanation:

The formula to find this is v=πr^2h/3

r=d/2. so the radius (r) is 6 because you have to divide the diameter (12) by 2. and the height is 7. so, 6^2=36 and 36x7=252.

252/3=84

and because the question is asking for the EXACT value, you need to just put the pi symbol next to it. Final answer for a is 84π

B) you need to find 30% of 84, which is 25.2 and add it to 84, and you will get 109.2! Final answer is 109.2π.

5 0
3 years ago
Given: AB = 12
Alexxx [7]

In proving  that C is the midpoint of AB, we see truly that C has Symmetric  property.

<h3>What is the proof about?</h3>

Note that:

AB = 12

AC = 6.

BC = AB - AC

= 12 - 6

=6

So, AC, BC= 6

Since C is in the middle, one can say that C is the midpoint of AB.

Note that the use of segment addition property shows: AC + CB = AB = 12

Since it has Symmetric property, AC = 6 and Subtraction property shows that CB = 6

Therefore,  AC = CB and thus In proving  that C is the midpoint of AB, we see truly that C has Symmetric  property.

See full question below

Given: AB = 12 AC = 6 Prove: C is the midpoint of AB. A line has points A, C, B. Proof: We are given that AB = 12 and AC = 6. Applying the segment addition property, we get AC + CB = AB. Applying the substitution property, we get 6 + CB = 12. The subtraction property can be used to find CB = 6. The symmetric property shows that 6 = AC. Since CB = 6 and 6 = AC, AC = CB by the property. So, AC ≅ CB by the definition of congruent segments. Finally, C is the midpoint of AB because it divides AB into two congruent segments. Answer choices: Congruence Symmetric Reflexive Transitive

Learn more about midpoint from

brainly.com/question/6364992

#SPJ1

3 0
1 year ago
I will give brainiest to whoever answers correctly !!
tigry1 [53]

Answer:

The graduate will have $4,084.97 when he cashes in the CD at the end of the 36-months.

Step-by-step explanation:

This can be determined using the formula for calculating the future value (FV) formula as follows:

FV = PV * (1 + r)^n ................................. (1)

Where;

FV = Future value or the amount the graduate will have at end of 36 months = ?

PV = Present value or the total amount invested = Cash gifts from friends and relatives + Amount of 3 scholarships he received = $900 + $250 + $300 + $1,400 = $2,850

r = daily interest rate = 1% / 360 = 0.01 / 360 = 0.0000277777777777778

n = number of days = 36 months * 360 days = 12,960

Substituting the values into equation (1), we have:

FV = $2,850 * (1 + 0.0000277777777777778)^12,960

FV = $2,850 * 1.43332224806396

FV = $4,084.96840698229

Approximating to the nearest cent as required, we have:

FV = $4,084.97

Therefore, the graduate will have $4,084.97 when he cashes in the CD at the end of the 36-months.

5 0
2 years ago
Other questions:
  • Express the following in scientific notation: 0.0000079
    11·2 answers
  • Ignore the bottom question, what are the dolls and pencils and trucks worth
    13·1 answer
  • Whoever gets it right and selects all the corret ones gets brainly  also plz help 
    9·1 answer
  • What is the slope of the line 2x+5y=25
    9·2 answers
  • - 3 represents the distance from a stage to the floor below. 3 represents the distance from the stage to the top of a bookcase.
    13·1 answer
  • What is the range of the data represented by the box plot?
    11·1 answer
  • Which is an equivalent form of the equation 3x-3y=15
    8·2 answers
  • Translation coordinate plane
    13·2 answers
  • Which statement about the fraction is true ?
    5·1 answer
  • Make an accurate drawing of two rectangles with the same perimeter, but different areas. Indicate the dimensions of the rectangl
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!