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
olchik [2.2K]
3 years ago
8

Steven is training for a race. He can currently run 1 mile in 7 minutes and wants to improve his time by 10 seconds each week un

til he can run one mile in 5 minutes. Which equation should Steven use to calculate the number of weeks (w) it will take him to reach his goal time of 5 minutes?
a) 7 - 10w = 5
b) 10w + 7 = 5
c) 10w - 7(60) = 5(60)
d) 7(60) - 10w = 5(60)
Mathematics
1 answer:
qaws [65]3 years ago
8 0
The answer is d I hope this helps
You might be interested in
You have 400 cards stored 3/5 of them are from family. 1/4 of them are from friends. The rest you made. How many cards did you m
omeli [17]
You made 3/20 of the 400 cards, which is 60 cards.
5 0
3 years ago
Use Newton’s Method to find the solution to x^3+1=2x+3 use x_1=2 and find x_4 accurate to six decimal places. Hint use x^3-2x-2=
luda_lava [24]

Let f(x) = x^3 - 2x - 2. Then differentiating, we get

f'(x) = 3x^2 - 2

We approximate f(x) at x_1=2 with the tangent line,

f(x) \approx f(x_1) + f'(x_1) (x - x_1) = 10x - 18

The x-intercept for this approximation will be our next approximation for the root,

10x - 18 = 0 \implies x_2 = \dfrac95

Repeat this process. Approximate f(x) at x_2 = \frac95.

f(x) \approx f(x_2) + f'(x_2) (x-x_2) = \dfrac{193}{25}x - \dfrac{1708}{125}

Then

\dfrac{193}{25}x - \dfrac{1708}{125} = 0 \implies x_3 = \dfrac{1708}{965}

Once more. Approximate f(x) at x_3.

f(x) \approx f(x_3) + f'(x_3) (x - x_3) = \dfrac{6,889,342}{931,225}x - \dfrac{11,762,638,074}{898,632,125}

Then

\dfrac{6,889,342}{931,225}x - \dfrac{11,762,638,074}{898,632,125} = 0 \\\\ \implies x_4 = \dfrac{5,881,319,037}{3,324,107,515} \approx 1.769292663 \approx \boxed{1.769293}

Compare this to the actual root of f(x), which is approximately <u>1.76929</u>2354, matching up to the first 5 digits after the decimal place.

4 0
2 years ago
Can I add a photo here because I don't know how to ask a question in math​
geniusboy [140]

Answer:

Yes u can just click the thing that looks like a paper clip.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the value. X3-4 when x=-3?? PLEASE HELP !!!! ASAP!!!!
Mariulka [41]

Answer:

The other person is correct, my bad I got mixed up with the numbers

5 0
4 years ago
Read 2 more answers
Solve any method: 9x^2+9x=4??
Gala2k [10]
Subtract 4 from both sides, solve using quadratic formula
ax^2+bx+c
(-b(+or-) Square Root of b^2 - 4ac)/2a

9x^2+9x-4=0
-9(+or-)Square root of 9^2-4(9)(-4)/2(9)

Solve^
6 0
3 years ago
Read 2 more answers
Other questions:
  • Explain how you would solve the equation 3x + 4 - 2x = 6x + 2 - 5x + 2
    13·1 answer
  • 11.84396 in decimal form nearest thousandth
    8·1 answer
  • What is ​0.83¯¯¯¯​ expressed as a fraction in simplest form?<br><br> Enter your answer in the box.
    14·2 answers
  • PLEASSEEEEEE HELLLPPPP PLEASE
    7·1 answer
  • How many sides do 3 octagons and 3 pentagons have in all?
    6·2 answers
  • Line segment AB has endpoints A(1,4) and B(6,2). Find the coordinates of the point that divides the line segment directed from A
    13·2 answers
  • Which expression is equivalent to 15+3x?
    10·1 answer
  • Camilo tiene $840pesos que debe repartir en partes iguales Y sin que sobre .Entre sus 6hijos ¿Cuánto le tocará a cada uno de sus
    10·1 answer
  • Segment AB falls on line 6x + 3y = 12. Segment CD falls on line 4x + 2y = 8. What is true about segments AB and CD?
    12·2 answers
  • 2.3 x 10^5 + 4.1 x 10^6 answer please
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!