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Georgia [21]
3 years ago
9

PLEASE HELP *78 POINTS* (WILL MARK BRAINLIEST)

Mathematics
1 answer:
hammer [34]3 years ago
8 0

Answer:

4 hours ( i think sorry if wrong)

Step-by-step explanation:

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Darien is discounting all prices on the sales for 20%. Which expression below represents the price, p, of any item he marks down
Dominik [7]

Answer: C. 0.8p

Step-by-step explanation:

Since Darien is discounting the prices by 20%, the new price will be 80% of the original price, or 0.8 times the original price

7 0
2 years ago
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
The distance a train travels d is proportional to a constant rate of speed r at different times t which equation shows the relat
Anarel [89]

Answer:

D

Step-by-step explanation:

d = rt so to isolate r you divide both sides by t, leaving you with r=d/t

its basically speed=distance/time, or s=d/t if that's more farmiliar to you

6 0
3 years ago
find the measure of the angle of the radius of the circle is 4 inches and the length of the arc is 8 pi.
NeTakaya
Since the angle is in radians, then s = rθ.

\bf \textit{arc's length}\\\\&#10;s=r\theta \quad &#10;\begin{cases}&#10;r=4\\&#10;s=8\pi &#10;\end{cases}\implies 8\pi =4\theta \implies \cfrac{8\pi }{4}=\theta \implies 2\pi =\theta
4 0
3 years ago
Plzzzzzzzzzzzzz hellllllllllllllllllllllllllpppppppppppppppppp
cestrela7 [59]

Answer:

1.02 units3

Step-by-step explanation:

<h2>18/15 =1.02</h2>
3 0
3 years ago
Read 2 more answers
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