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Elanso [62]
2 years ago
15

D=-0.5t + 7I REALLY NEED HELP ASAP I WILL MARK BRAINLIEST TYTY​

Mathematics
1 answer:
serg [7]2 years ago
6 0

Answer:

7.5t

Step-by-step explanation:

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Part A: Describe the solution(s) to 9x² - 36x + 36 = 0 by just determining the radicand. Show your work. (10 points) Part B: Des
Alik [6]

The solution to the equations are:

  • 9x² - 36x + 36 = 0 has two equal real solutions
  • x² - x + 4 = 0 has no real solutions
  • The factored expression of 4x² + 23 – 35 is 4(x² -3)

<h3>Part A: Describe the solution</h3>

The equation is given as:

9x² - 36x + 36 = 0

The above equation is a quadratic equation which can be represented as:

ax² + bx + c = 0

The discriminant (d) is calculated as:

d = b² - 4ac

So, we have:

d = (-36)² - 4 * 9 * 36

d = 0

A discriminant of 0 means that the equation has two equal real solutions

Hence, 9x² - 36x + 36 = 0 has two equal real solutions

<h3>Part B: Describe the solution</h3>

The equation is given as:

x² - x + 4 = 0

The above equation can be represented as:

ax² + bx + c = 0

The discriminant (d) is calculated as:

d = b² - 4ac

So, we have:

d = (-1)² - 4 * 1 * 4

d = -15

A discriminant of -15 means that the equation has no real solutions

Hence, x² - x + 4 = 0 has no real solutions

<h3>Part C: The solution to the expression</h3>

We have:

4x² + 23 – 35

Evaluate the difference

4x² -12

Factor out 4

4(x² -3)

Hence, the factored expression of 4x² + 23 – 35 is 4(x² -3)

Read more about quadratic expressions at:

brainly.com/question/10449635

#SPJ1

7 0
2 years ago
Help me divide this radical
melisa1 [442]
The 4's will cancel out, then we have to get rid of the sqrt(16) on the bottom

sqrt(15) / sqrt(16)

sqrt(16) = 4

final answer = sqrt(15) / 4.

the answer is C
5 0
3 years ago
BRAINLIEST TO WHOEVER ANSWERS THIS CORRECTLY WITH EXPLANATION PLEASE ASAP!!!
Drupady [299]
I think it’s either # 3 or #4 I tried dividing 2401 by 10 and it is 240.1. Hope this helps

5 0
3 years ago
(3x+6y=8<br> 2x - 5y = 22
elena-s [515]

Answer:  Incredible.  x = 172/27   y = -50/27

Decimal equivalent x= 6.37  y= -1.852

Step-by-step explanation:

Solve by elimination or solve by substitution or both.

Procedure shown in photo attached.

Also, Graphed solution.

I hope this is worth a Brainliest!

5 0
3 years ago
A mechanic charges $35 per hour to work on motorcycles. Let h represent the number of hours he works and p represent the amount
BARSIC [14]

Answer:

c

Step-by-step explanation:

dfnb fiqwebfibef

4 0
3 years ago
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