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3 years ago

15

Dragonflies today have a wingspan of 6 inches. The ancestors of the dragonfly had a wingpan 5 times greater. How long was the wi

ngspan of the dragonfly's ancestors?

1 answer:

ludmilkaskok [199]3 years ago

5 0

I believe The answer is 30 inches because 6x5 is 30

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The current population of a small town is 2463 people. It is believed that town's population is tripling every 12 years. Approxi

Bingel [31]

{Answer:

3893 residents.

Step-by-step explanation:

Equation for population growth:

The equation for the size of a population, considering that it doubles every n years, is given by:

$A(t) = A(0)(3)^{(\frac{t}{n})}$

In which A(0) is the initial population.

The current population of a small town is 2463 people. It is believed that town's population is tripling every 12 years.

This means that $A(0) = 2463, n = 12$ . So

$A(t) = A(0)(3)^{(\frac{t}{n})}$

$A(t) = 2463(3)^{(\frac{t}{12})}$

Approximate the population of the town 5 years from now.

This is A(5). So

$A(t) = 2463(3)^{(\frac{t}{12})}$

$A(5) = 2463(3)^{(\frac{5}{12})} = 3892.8$

Rounding to the nearest whole number, 3893 residents.

4 0

3 years ago

What are the coordinates of the image of vertex C after a dilation with center (0, 0) and scale factor 2? A. C’(3, 4) B. C’(4, 6

saveliy_v [14]

Answer:

I think it is answer A

Step-by-step explanation:

i don't know

5 0

3 years ago

Write the number in scientific notation <br> 0.0000024<br><br> please help

kompoz [17]

Hello there! I can help you! The number shows is 24 ten millionths. It is in decimal form, so the exponent for the power of 10 will definitely be negative. The first number has to be greater than or equal to 1, but less than 10. If we look at this number and you place the decimal between the 2 and the 4, we can use 2.4 as the front number, because it's greater than 1, but less than 10. Now, we can move that decimal to the left a certan number of times to get that number shown below. If you count from the decimal, you move to the left 6 times. That makes the power of ten 10^-6. And when you multiply 2.4 * 10^-6 (0.000001), you get 0.0000024. There. The number in scientific notation is 2.4 * 10^-6.

5 0

3 years ago

Read 2 more answers

Increase £40 by 15%

matrenka [14]

Answer:

£46

Step-by-step explanation:

40 increased by 15 percent is because 15 percent of 40 is 6

adding this increase to it makes it 46 pounds

8 0

2 years ago

Solve for z. -p(d+z) = -2z+59−p(d+z)=−2z+59

Nikolay [14]

Answer:

$\bold{z=\dfrac{pd+59}{p+2}}$

Step-by-step explanation:

-p(d + z) = -2z + 59

-pd - pz = -2z + 59

+pd +pd

-pz = pd - 2z + 59

+2z +2z

pz + 2z = pd + 59

(p + 2)z = pd + 59

÷(p+2) ÷(p+2)

$\bold{z=\dfrac{pd+59}{p+2}}$

3 0

3 years ago