Ask question

Ask question

All categories

3 years ago

9

An epidemic has hit Clinton City. Its population is declining 22% every hour. In just 4 hours, there are only 35,542 people left

in the city. What was the initial population in the city before the epidemic broke out?
14,742
85,688
14,743

1 answer:

guapka [62]3 years ago

5 0

Every hour only 78% survive so we have the equation

35,542 = x(0.78)^4

x = 96,020 answer

You might be interested in

yo mm How your answer to the nearest tenth. (Use 3.14 for a The model below is composed of a rectangle and a semicirce. Find the

kipiarov [429]

As no diagrams provided ,you cab solve according to the formulas provided below

Rectangle:-

Area=Length×Breadth

Semicircle:-

Area=\pi r

r is radius

3 0

2 years ago

Find the following measure for this figure.<br> Volume =

Rudiy27

Answer:

400 cubic units

Step-by-step explanation:

The volume of a square prism is $\dfrac{1}{3} s^2 h$ . Plugging in the given values, you get:

$\dfrac{1}{3}\cdot 10^2 \cdot 12= 400$

Hope this helps!

5 0

2 years ago

A tank in the shape of an inverted right circular cone has height 6 meters and radius 3 meters. It is filled with 2 meters of ho

ANTONII [103]

Answer:

Step-by-step explanation:

Given

Radius of cone $R=3\ m$

height of cone $H=6\ m$

Chocolate is filled up to a height of $h=2\ m$

Work done to lift a body to a height h when F force is applied is given by

$W=Fh$

An infinitesimally slice of chocolate $\Delta y$ at a height of y has a radius

$r=\dfrac{R}{H}\cdot h$

Volume of slice is $dV=\pi r^2y$

$mass =\rho \times dV$

This mass need to be raised to a height of 6-y which requires a work of

$dW=\rho (\pi r^2ydy)g(6-y)$

To empty the tank

$W=\int_{0}^{3}\rho \cdot \pi \cdot g\cdot r^2\cdot (6-y)dy$

at $h=y$

$r=\dfrac{R}{H}\cdot y$

$r=\dfrac{3}{6}y$

$r=\dfrac{y}{2}$

$W=\int_{0}^{3}\rho \cdot \pi \cdot g\cdot \dfrac{y^2}{4}\cdot (6-y)dy$

$W=10^3\times \pi \times \dfrac{1}{4}\times (2y^3-\dfrac{1}{4}y^4)_0^3$

$W=259.80\ kJ$

4 0

2 years ago

I’m giving brainliest to who answers correct!

sweet [91]

Answer:

y = 1/2x + 2

Step-by-step explanation:

for x=10, y=7

for x=20, y=12

for x=30, y=17

y = 1/2x + 2

7 0

2 years ago

What's the factor of 58

S_A_V [24]

Factors of 58 are: 1, 2, 29, and 58

8 0

2 years ago