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
Aleonysh [2.5K]
3 years ago
14

PLEASE HELP!! Anyone??

Mathematics
1 answer:
klasskru [66]3 years ago
3 0
Replace P with 15:

d = -3(15)^2 + 168(15) - 315

d = -3(225) + 2520 - 315

d = -675 + 2520 -315

d = 1530
You might be interested in
In a store, a sample of 60 pens was selected from a box of 1,200 pens. Of these 60, 4 pens did not work. About how many pens cou
Lapatulllka [165]
Ok so if 1200 total pens and 60 were taken that's a ratio of 1200/60=20

out of 60pens 4 didn't work, again ratio is 4/60=1/15 so about 1/15 of the pens didn't work. 

so we have 1200pens * 1/15broken ratio = 80 pens or we can say 

20*4=80pens won't work from 20 groups of 60 and 4 out of 60 not working is 20*4=80 not working from total batch of 1200.

hope this helps you some! thank you!!!!!!!!!
3 0
3 years ago
A contractor bought 7.6 ft to the second power of sheet metal. he has used 3.7ft to the scound power so far and has ​$117 worth
bonufazy [111]

Answer:

x= 30

Step-by-step explanation:

8 0
3 years ago
3x−1−(x+3)=1 PLEASE HELP IDK HOW TO DO IT
torisob [31]

Answer:

x = 5/2

x = 2 1/2

x = 2.5

Step-by-step explanation:

3x - 1 - (x + 3) = 1

3x - 1 - x - 3 = 1

2x - 1 - 3 = 1

2x - 4 = 1

2x = 1 + 4

2x + 5

2x = 5

x = 5/2 → 2 1/2 → 2.5 ( can be written in any of these forms depending on what you need to do)

<em>Hope this helped! :)</em>

7 0
2 years ago
Read 2 more answers
Joe went to the hobby shop and bought 2 model sports cars at $8.95 each and some paints. If he spent a total of $23.65, what was
Gala2k [10]
Since he bought 2 model cars for $8.95 each, he bought both for $17.90. Now, subtract this from the total cost to get the cost of paint. $23.65-$17.90=$5.75. So, the total costs of paints are $5.75. Hope this helped!
8 0
3 years ago
A student’s height is 145cm. He goes to a pond where the average water depth is 110cm. Does this student have a risk in the pond
Elodia [21]
Yes, because 145-110=35
3 0
3 years ago
Other questions:
  • 8. Find the value of x so that line mis parallel to line l. (1 p<br><br> (3x+21)°<br><br> (4x-7)
    10·1 answer
  • Data collected at elementary schools in dekalb county, ga suggest that each year roughly 25% of students miss exactly one day of
    8·1 answer
  • Earth Science Chapter 1<br> Cust
    8·1 answer
  • The quotient of 8 and b plus g in algebraic expression
    15·1 answer
  • A 16 ​-oz iced tea at a certain restaurant has 80 calories. How many calories are there in a 24​-oz iced​ tea?
    11·2 answers
  • Vertical angles are supplementary <br><br> T <br> F
    10·1 answer
  • Simetricul unui punct fata de o dreapta
    12·1 answer
  • Which is equivalent to 6^-2
    9·2 answers
  • Solve the inequality. 5(x + 1) – 10 ≥ 2x + 3(x + 2)
    13·1 answer
  • 8.(Extra Credit)Knowing the value of x determine the numerical value of all the dimensions on the model.Label them accordingly.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!