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4 years ago

Help please! I need to find the altitude

Mathematics

1 answer:

ioda4 years ago

3 0

A. Looks right to me. It is a guess tho im too lazy. Is this a test? I hope not

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Find the volume of the cone

4vir4ik [10]

Answer:

12 $\pi$ units^3

Step-by-step explanation:

V=1/3Bh

=1/3 Area of the base times height

Area of base: $\pi$ r^2=4 $\pi$

height=9

4 $\pi$ times 9=36 $\pi$

1/3 of 36 $\pi$ =12 $\pi$

6 0

3 years ago

Triangle ABC is similar to triangle ADE, which is formed with angle A and side AD, as shown.

denpristay [2]

Answer:

Only option B is correct, i.e. (-1, 2).

Step-by-step explanation:

Two triangles are similar when their corresponding angles are congruent.

Triangle ABC would be similar to triangle ADE when ∠A = ∠A, ∠B = ∠D, and ∠C = ∠E.

Since A is common vertex and D is on side AB, then it is sure that E would be on side AC.

The information ∠B = ∠D, and ∠C = ∠E makes sure that DE║BC.

It means slope of DE = slope of BC.

⇒ (y-3)/(x-2) = (-4+1)/(-5-4)

⇒ (y-3)/(x-2) = (-3)/(-9)

⇒ (y-3)/(x-2) = 1/3

We can try and plug all four options in the proportion and check which one satisfy the equation.

option A: (-1-3)/(2-2) ≠ 1/3

option B: (2-3)/(-1-2) = 1/3

option C: (-1-3)/(-3-2) ≠ 1/3

option D: (-3-3)/(-1-2) ≠ 1/3

Hence, only option B is correct, i.e. (-1, 2).

6 0

3 years ago

Read 2 more answers

The product of the ages of three children is 1872. The age of the middle child is the average of the ages of the other two child

sergejj [24]

The total age of the three children are = 37years

<h3>Calculation of the total age of children</h3>

The product of the ages of three children is = 1872.

Let take child 1 = x

child 2 = x

child. 3 = x

Therefore, the age of three children = x³= 1872

Therefore;

$x = \sqrt[3]{1872}$

X = 12.32448

The age of the middle child = 12.32448 + 12.32448

= 24.64896/2

= 12.32448

Therefore the sum of their ages = 12.32448 + 12.32448 + 12.32448 = 37years.

Learn more about age calculation here:

brainly.com/question/2744275

7 0

3 years ago

Plzzzz I need Helpppp!!!

Bumek [7]

Answer:

(8x+15)=(7x+17){ being alternative angle}

8x+15=7x+17

8x-7x=17-15

x=2

here,

8x+15= 8×2+15

16+15=31

7x+17

7×2+17

14+17

again

(8x+15)+y=180°( being straight angle)

31+y=180

y=180-31

y= 149

7 0

3 years ago

Read 2 more answers

I need help with school

Nesterboy [21]

I’m really sorry about the other persons rudeness.

0.5 would be the answer because you are starting at 1 1/3 and moving 5/6 to the left

3 0

3 years ago