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Jlenok [28]
3 years ago
7

PLEASE HELP ASAP.. WILL FAN AND MEDAL

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
6 0

Answer: 17.07 centimeters, because height = Square root of the difference of the squares of 18 and 5.7.


Step-by-step explanation:

Given: The slant height of the cone (l)= 18 cm

The radius of the cone (r) =5.7 cm

Let h be the height of the cone .

We know that the above dimensions make aright triangle in a cone, such that by Pythagoras theorem

l^2=h^2-r^2\\\Rightarrow\ h^2=l^2-r^2\\\Rightarrow\ h=\sqrt{l^2-r^2}\\\Rightarrow\ h=\sqrt{18^2-5.7^2}

Thus, height = Square root of the difference of the squares of 18 and 5.7

and,

\Rightarrow\ h=\sqrt{324-32.49}\\\Rightarrow\ h=\sqrt{291.51}\\\Rightarrow\ h=17.0736639302\approx17.07\ cm

Komok [63]3 years ago
4 0
C. 18.88 centimeters. Because with a tilted radius of 5.7. It ranges up. So it would be a higher number SLIGHTLY.
Hope this helps. 
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Answer:

The standard 4 measuring cup sizes are: 1 cup, 1/2 cup, 1/3 cup and 1/4 cup. With those four cup sizes you can measure dry ingredients for any recipe.

Step-by-step explanation:

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3 years ago
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A blue jay lives in a nest that is 12 meters high in a tree the blue jay flies 15 meters to get from its nest to a flower on the
Ivan

Answer:

The distance between the base of the tree and the flower is 9m

Step-by-step explanation:

Here, we have to paint a picture.

The flower is on the ground, the height of the tree is 12m.

The distance from the nest to the flower on the floor is 15m

Indisputably, what we have is a right angled triangle, with the height being 12m, the length of the hypotenuse being 15 and we are asked to calculate the adjacent which represents the distance from the base of the tree to the flower

To get this distance, we simply apply the Pythagoras’ theorem which states that the square of the hypotenuse(longest side of the triangle) is equal to the sum of the squares of the other two sides.

Thus mathematically, we know that our hypotenuse is 15m and the height is 12m

The length we are to calculate is the adjacent and it is equal to;

15^2 - 12^2

= 225 - 144

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The length is thus

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Please check attachment for a diagrammatic picture of the triangle

8 0
3 years ago
Is the simplified form of 2-3 + 3.3 rational?<br> Yes<br> No
N76 [4]

Answer:

YES IT IS

Step-by-step explanation:

2-3 + 3.3

= -1 + 3.3

= -4.3

We learn that:

Rational number: rational number is the number that can be written as a/b (a and b would be intergers and b is not equal to 0). Rational number would be most of numbers we use in out life, except Square root and Pi number.

In this case, -4.3 can be write as -43/10

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Hope this helped :3

6 0
3 years ago
Which table shows a proportional relationship between x and y ?
insens350 [35]

Answer:

Table C

Step-by-step explanation:

Given

Table A to D

Required

Which shows a proportional relationship

To do this, we make use of:

k = \frac{y}{x}

Where k is the constant of proportionality.

In table (A)

x = 2, y = 4

k = \frac{y}{x}

k = \frac{4}{2}

k = 2

x = 4, y = 9

k = \frac{y}{x}

k = \frac{9}{4}

k = 2.25

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In table (B)

x = 3, y = 4

k = \frac{y}{x}

k = \frac{4}{3}

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x = 9, y = 16

k = \frac{y}{x}

k = \frac{16}{9}

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Both values of k are different. Hence, no proportional relationship

In table (C):

x = 4, y = 12

k = \frac{y}{x}

k = \frac{12}{4}

k = 3

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k = \frac{y}{x}

k = \frac{18}{6}

k = 3

This shows a proportional relationship because all values of k are the same for this table

7 0
3 years ago
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