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3 years ago

State whether we are looking for the PART, WHOLE, or PERCENT: 40 is 25% of what number?

Mathematics

2 answers:

Nadusha1986 [10]3 years ago

6 0

Answer:

Step-by-step explanation:

25x4=100, so 40x4= 160

40 is 25% of 160

Fudgin [204]3 years ago

5 0

Answer:

The answer is 160

Step-by-step explanation:

(100×40)

4000÷25

160

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What is the area of a sector when r = 2 and 0 = 1.75 radians? [?] sq units Round your answer to the nearest tenth. Enter

krok68 [10]

Answer:

Step-by-step explanation:

The area of a sector in terms of radians as opposed to degrees is

$A=\frac{\theta}{2\pi }*\pi r^2$

Filling in the formula accordingly gives us

$A=\frac{1.75rad}{2\pi rad}*\pi (2)^2$

The radians cancel out, the pi's cancel out, the 2 in the denominator cancels out (divides into 2-squared once), leaving us with

A = 1.75(2) so

A = 3.5 units squared

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1 year ago

Whats 2x (3x-9x) if you answer this you get 10 points

Masteriza [31]

Answer:

2x(3x-9x)

=2x(-6x)

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2 years ago

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Neil is analyzing a quadratic function f(x) and a linear function g(x). Will they intersect?

SashulF [63]

D, because the will not intersect i believe

4 0

3 years ago

inessss [21]

I have no idea what this is asking honestly but i hope you figure it out

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2 years ago

The population of rabbits on an island is growing exponentially. In the year 1994, the population of rabbits was 9600, and by 20

drek231 [11]

Answer:

49243

Step-by-step explanation:

Given that the population of rabbits on an island is growing exponentially.

Let the population, $P=P_0e^{bt}$

where, $P_0$ and b are constants, t=(Current year -1994) is the time in years from 1994.

In 1994, t=0, the population of rabbit, P=9600, so

$9600=P_0e^{b\times 0}$

So, $P_0=9600$

and in 2000, t=2000-1994=6 years and population of the rabbit, P=18400

$18400=9600 \times e^{b\times 6} \\\\\frac{18400}{9600}=e^{b\times 6} \\\\$

$\ln(23/12}=6b \\\\$

$b = \frac{\ln{1.92}}{6} \\\\$

b=0.109

On putting the value of P_0 and b, the population of the rabbit after t years from 1994 is

$P=9600 \times e^{0.109\times t}$

In 2009, t= 2009-1994=15 years,

So, the population of the rabbit in 2009

$P=9600 \times e^{0.109\times 15}=49243$

Hence, the population of the rabbit in 2009 is 49243.

7 0

3 years ago