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Andrei [34K]
3 years ago
13

matt is playing a game. He gains 7 pts ,loses 10pts, gains 2 pts and the loses 8 pts. what is the final score?

Mathematics
2 answers:
earnstyle [38]3 years ago
6 0
7 - 10 = - 3
- 3 +2 = - 1
-1 - 8 = - 9
vlada-n [284]3 years ago
3 0

-9 points is the final score


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CALCULUS EXPERT WANTED
Vlad [161]

a. Use the mean value theorem. 16 falls between 12 and 20, so

v'(16)\approx\dfrac{v(20)-v(12)}{20-12}=\dfrac{240-200}8=5

(Don't forget your units - 5 m/min^2)

b. v(t) gives the Johanna's velocity at time t. The magnitude of her velocity, or speed, is |v(t)|. Integrating this would tell us the total distance she has traveled whilst jogging.

The Riemann sum approximates the integral as

\displaystyle\int_0^{40}|v(t)|\,\mathrm dt=12\cdot200+8\cdot240+4\cdot220+16\cdot150=7600

If you're not sure how this is derived: we're given 5 sample points, so we can cut the interval [0, 40] into 4 subintervals. The lengths of each subinterval are 12, 8, 4, and 16 (the distances between each sample point), and the height of the rectangle approximating the area under the plot of |v(t)| is determined by the value of v(t) at each sample point, 200, 240, |-220| = 220, and 150.

c. Bob's velocity is given by B(t), so his acceleration is given by B'(t). We have

B'(t)=3t^2-12t

and at t=5 his acceleration is B'(5)=15 m/min^2.

d. Bob's average velocity over [0, 10] is given by the difference quotient,

\dfrac{B(10)-B(0)}{10-0}=\dfrac{700-300}{10}=40 m/min

6 0
3 years ago
The estimate obtained from a sample of which size is likely to be closest to the actual parameter value of a population?
Leno4ka [110]

Answer:

184

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A rectangle has an area of 12 square feet and a length of 5 feet .what the width
gladu [14]
Area= Length* Width
⇒ 12 ft^2= 5 ft* Width
⇒ Width= 12 ft^2/ 5 ft
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The width is 2.4 ft~
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3 years ago
What is 6/7 divided by 3?<br> 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10
3241004551 [841]

Answer:

Exact Form:

2/7

Decimal Form:

0.285714 (Terminating)

5 0
2 years ago
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Lily has 6 dog toys that are red one sixth of all her gig toys are red. How many gig toys does lily have?
Semmy [17]
First, you multiply 6 by 6, since one-sixth of all her dog toys are red.

6×6=36.

Next, we put them in fraction form just to check.

\frac{6}{36}

Next, we simplify it to see if we get one-sixth.

After it's simplified we get   \frac{1}{6}

That means she has 36 dog toys.

Have a nice day! :)


8 0
2 years ago
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