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
MAVERICK [17]
3 years ago
9

Pls i need it in 10 mins ​

Mathematics
1 answer:
Levart [38]3 years ago
5 0
At the start they both have 200?
You might be interested in
A rubber band ball weighed some amount. Fatima added two rubber bands to the ball, and now the ball weighed 88 grams. Fatima add
earnstyle [38]

Answer:

Step-by-step explanation:

92

8 0
3 years ago
Aida applied the distributive property to write the equivalent expressions below.
morpeh [17]

Answer:

The answer is b

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If Sarah invests $5,000 into a fund that earns 6% interest compounded annually, how long will it take for her investment to grow
yarga [219]

Answer:

40

Step-by-step explanation:

so next year her money would be 6% more so:

5000 + (0.6 * 5000) = (1.06) * 5000

So each year she'll have : (1.06)*(last year's money)

So we can say after n years she will have :

((1.06)^n) * 5000

So:

5000((1.06)^n)=50000

n is 39.5

So around 40

6 0
3 years ago
The graphs of the polar curves r = 4 and r = 3 + 2cosθ are shown in the figure above. The curves intersect at θ = π/3 and θ = 5π
Gennadij [26K]
(a)

\displaystyle \frac{1}{2} \cdot \int_{\frac{\pi}{3}}^{\frac{5\pi}{3}} \left(4^2 - (3 + 2\cos\theta)^2 \right) \, d\theta

or, via symmetry

\displaystyle\frac{1}{2} \cdot 2 \int_{\frac{\pi}{3}}^{\pi} \left(4^2 - (3 + 2\cos\theta)^2 \right) \, d\theta

____________

(b)

By the chain rule:

\displaystyle \frac{dy}{dx} = \frac{ dy/ d\theta}{ dx/ d\theta}

For polar coordinates, x = rcosθ and y = rsinθ. Since
<span>r = 3 + 2cosθ, it follows that

x = (3 + 2\cos\theta) \cos \theta \\ &#10;y = (3 + 2\cos\theta) \sin \theta

Differentiating with respect to theta

\begin{aligned}&#10;\displaystyle \frac{dy}{dx} &= \frac{ dy/ d\theta}{ dx/ d\theta} \\&#10;&= \frac{(3 + 2\cos\theta)(\cos\theta) + (-2\sin\theta)(\sin\theta)}{(3 + 2\cos\theta)(-\sin\theta) + (-2\sin\theta)(\cos\theta)} \\ \\&#10;\left.\frac{dy}{dx}\right_{\theta = \frac{\pi}{2}}&#10;&= 2/3&#10;\end{aligned}

2/3 is the slope

____________

(c)

"</span><span>distance between the particle and the origin increases at a constant rate of 3 units per second" implies dr/dt = 3

A</span>ngle θ and r are related via <span>r = 3 + 2cosθ, so implicitly differentiating with respect to time

</span><span />\displaystyle\frac{dr}{dt} = -2\sin\theta \frac{d\theta}{dt} \quad \stackrel{\theta = \pi/3}{\implies} \quad 3 = -2\left( \frac{\sqrt{3}}{2}}\right) \frac{d\theta}{dt} \implies \\ \\ \frac{d\theta}{dt} = -\sqrt{3} \text{ radians per second}
5 0
3 years ago
What is the value of x?
Serggg [28]

Answer:

Step-by-step explanation:

the angles of a triangle add up to180.

70 plus 30 plus x = 180

100 plus x =180

x=80

8 0
3 years ago
Other questions:
  • You have a bank account that you go to every week. The account initially has $500. You take out 50% of the amount and put in 20%
    12·1 answer
  • HELP!!! The length of the unknown side is _____. 6.7 7 10.8 1.73
    5·2 answers
  • Would somebody let me use their brainly so i can do work
    13·2 answers
  • The table lists students in an international summer school and the countries they come from.
    10·2 answers
  • What are the coordinates of R on segments QS such that the ratio is 1:2. Q(-6,2) S(5,6)
    10·1 answer
  • Find the volume of the irregular<br> figure.
    15·1 answer
  • Find the area of the triangular prism for a chance to get brainlest
    6·1 answer
  • 6th grade math plz help me
    14·1 answer
  • What is the lateral area of the pyramid
    8·1 answer
  • At the local video game store, a popular game went from $120 to $85 in a weeks time. What is the percent decrease of the item? R
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!