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3 years ago

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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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carson walks his dog 6 blocks south to the park. Next they jog 5 blocks east to go swimming at the pond. How many blocks did car

Vinil7 [7]

Pretty simple, 5 + 6 = 11 blocks total

4 0

3 years ago

If u(x)=-2x²+3 and v(x)=1/x, what is the range of (u ° v)(x)?

Ludmilka [50]

$u(x)=-2x^2+3\\\\v(x)=\dfrac{1}{x}\\\\(u\ \circ\ v)(x)=-2\left(\dfrac{1}{x}\right)^2+3=-2\left(\dfrac{1}{x^2}\right)+3=-\dfrac{1}{x^2}+3\\\\\text{The range of}\ y=\dfrac{1}{x^2}\ \text{is all positive real numbers.}\\\\\text{The range of}\ y=-\dfrac{1}{x^2}\ \text{is all negative real numbers.}\\\\\text{The range of }\ (u\ \circ\ v)(x)=-\dfrac{1}{x^2}+3\ is\ (-\infty,\ 3)$

6 0

4 years ago

Read 2 more answers

The distance between two cities on a map is 5.5 centimeters. The map uses a scale in which 1 centimeter represents 15 kilometers

sertanlavr [38]

Answer:

82.5 kilometers

Step-by-step explanation:

15×5.5= 82.5 kilometers

7 0

3 years ago

Please help me find X

tensa zangetsu [6.8K]

Answer:

<em> 50° </em>

Step-by-step explanation:

x° = 180° - (102° + 28°) =<em> 50°</em>

5 0

3 years ago

The radius of a cylindrical tank is 3' and the height is 8'what is the volume

valentinak56 [21]

Answer:

226 cubed foot (rounded to 3 s.f.)

Step-by-step explanation:

Volume of cyclinder: $\pi$ × r² × h

Volume of cylindrical tank = $\pi$ × 3² × 8

= 72 $\pi$

= 226 cubed foot (rounded to 3 s.f.)

7 0

3 years ago