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
Taya2010 [7]
3 years ago
8

HELPPPPPPPP!!!!!!!!!!

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Step-by-step explanation:

98 = 188t - 16t^2

-16t^2 + 188t = 98

-16t^2 + 188t - 98 = 0

8t^2 - 94t + 49 = 0

Use the quadratic formula with a = 8 , b = -94 , c = 49 to get the solutions

t = [(47 - root 1817) / 8]≈ 0.55

and

t = [(47 + root 1817) / 8] ≈ 11.20

You might be interested in
I don’t understand this problem
Wittaler [7]

68x87 i think?

sorry if that isnt right..

3 0
3 years ago
Read 2 more answers
Solve for x: 2 logz 2x = 6
Nikolay [14]

Answer:

x=3

Step-by-step explanation:

if the equation is 2x=6 then you'd do 6/2 and 2x/2 to cancel out the 2 and get x=3

5 0
3 years ago
What is the lcm of 4 and 5
timama [110]

Answer:

20

Step-by-step explanation:

4 * 1 = 4        5 * 1 = 5

4 * 2 = 8        5 * 2 = 10

4* 3 = 12        5 * 3 = 15

4 * 4 = 16       5 * 4 = 20

4 * 5 = 20


they both go into 20 equally. there is no number lower than 20 that they both go into

8 0
3 years ago
En un huerto se siembra frijol. Si se pone una planta, produce 3kg de frijol. por cada planta extra que se ponga, todas las plan
Ad libitum [116K]

Answer:

y = -0.07x2 + 3.07x

Step-by-step explanation:

For each plant we add, there is a decrease of 70 grams for all plants from the inicial value of 3 kg of beans.

So, for 2 plants, we have (3 - 0.07) * 2

For 3 plants, we have (3 - 2*0.07) * 3

For x plants, we have (3 - (x-1)*0.07) * x

So we can model the final result of the amount of beans 'y' with the equation:

y = (3 - (x-1)*0.07) * x

y = (3 - 0.07x + 0.07) * x

y = (3.07 - 0.07x) * x

y = -0.07x2 + 3.07x

(In this equation we have a = -0.07, b = 3.07 and c = 0)

7 0
3 years ago
Brent purchased a used vehicle that depreciates under a straight-line method. The initial value of the car is $7500, and the sal
Ilia_Sergeevich [38]
Let the value of the vehicle be described by the equation
V = a + bx
where x =  number of years since purchase
a,b are constants.

When x = 0, V = $7500. Therefore
a + b*0 = 7500
a = 7500

When x = 7, V = $500. Therefore
7500 + 7b = 500
7b = 500 -7500 = -7000
b = -7000/7 = -1000

The equation is
V = 7500 - 1000x

The slope of this equation is the depreciation rate, and it is -$1000 per year.

Answer: $1000 depreciation per year.

5 0
3 years ago
Other questions:
  • Bianca and Meredith are sisters. Meredith's height is 23 of Bianca's height plus 32 inches. Meredith is 60 inches tall. M Write
    9·2 answers
  • How many feet are in 8.72 mm?
    10·1 answer
  • What is 3 1/8 as decimal
    7·1 answer
  • Find the 12th term of the geometric sequence
    7·1 answer
  • Math question<br><br><br>please help me
    11·1 answer
  • 6(5x/3 -4/3 - 2)= 6 (3 - 6x/6 +4/6)
    15·1 answer
  • 7k + 3f + 8k + 15f<br> I need help with thia problem
    6·2 answers
  • 1 point
    5·1 answer
  • Jay has lost his mother’s favorite necklace, so he will rent a metal detector to try to find it. A rental company charges a one
    9·2 answers
  • Algebra Question: Answer quickly.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!