3 years ago

Help with one more please

Mathematics

1 answer:

dedylja [7]3 years ago

3 0

X² - 3x - 40
(x - 8) (x + 5)

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A balloon has a circumference of 23 cm. Use the circumference to approximate the surface area of the balloon to the nearest squa

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I think find the volume of the circumference

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3 years ago

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On a hiking trail map, the distance from mountain peak A to mountain peak B is 12.3 inches. The actual distance is about 1,000

vampirchik [111]

Answer:

The distance of the rivers on the map is of 1.23 inches.

Step-by-step explanation:

We use proportions to solve this question, by a rule of three.

We have that:

If the actual distance is of 1000 miles, the distance on the map is of 12.3 inches. If the actual distance is 100 miles, what will be the distance on the map?

1000 miles - 12.3 inches

100 miles - x

Applying cross multiplication

$1000x = 12.3*100$

$1000x = 1230$

$x = \frac{1230}{1000}$

$x = 1.23$

The distance of the rivers on the map is of 1.23 inches.

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3 years ago

50 POINTS<br>what is 2^-4×r^3×s^-2 <br>when r=-3 and s=5?<br>Explain please..

Korvikt [17]

You'll get -6.25
To find a negative power, put it 1 over it and remove the negative symbol. For example, to simplify 2^-4, we would do 1/2^-4, then remove the negative to get 1/2^4, which is 0.0625
Then you have that -3^3 is -27 (since -3*-3*-3 is -27). Then using the above method, you can simplify 5^-2 to 1/5^2, which is 0.4

0.0625*-27*0.4 is -27/400

:)

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Which of the following charts represents a function

Mama L [17]

Answer:

last one

Step-by-step explanation:

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Help<br> Pls :) I cannot find the answer

yuradex [85]

Answer:

1815 pi cm^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

We know the diameter =22

so the radius is d/2 = 22/2 =11

V = pi (11)^2 (15)

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V = 1815 pi cm^3

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3 years ago