*


Equilateral triangle mean every sides and angles are equal so the measure of angles is 60 degrees  given that has an altitude of 15 m so this mean that sin 60 = altitude / hypotenuse sqrt3 /2 = 15/hyp.hyp. = 15/(sqrt3 /2)hyp. = 30/sqrt3 = 30sqrt3 / 3 = 10sqrt3so in this way ve got that a side length is equal 10sqrt3 and the perimeter P = 3*10sqrt3 P = 30sqrt3 m so the 3rd choice is right,correct sure hope helped 

chathamtownfc.net:

x = -1/2

Step-by-step explanation:

add 2 which makes. 2 = -4x then divide -4 from x. which is x = 2/-4. which equals -1/2




chathamtownfc.net:

i would assume that it would be A = C

Step-by-step explanation:

if A equals B, and B equals C, that means that A = C.

You are watching: An equilateral triangle has an altitude of 15 m. what is the perimeter of the triangle


Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.

chathamtownfc.net:

0.36 = 36% probability that the land has oil and the test predicts it

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

*

In which

P(B|A) is the probability of event B happening, given that A happened.

*
is the probability of both A and B happening.

P(A) is the probability of A happening.

45% chance that the land has oil.

See more: How Do You Say Carrot In Spanish For Carrot, How To Say “Carrot” In Spanish

This means that

*

He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil.

This means that

*

What is the probability that the land has oil and the test predicts it?

This is

*
. So

*

*

0.36 = 36% probability that the land has oil and the test predicts it


5 0
4 months ago
HELP ASAP DUE TOMORROW!!:::A recycle bin is in the shape of a trapezoidal prism. The area of the base is 220 square inches and t
AleksAgata <21>

chathamtownfc.net:

The volume of the recycle bin is

*

Step-by-step explanation:

we know that

The volume of the trapezoidal prism is equal to

*

where

B is the area of the trapezoidal base of the prism

h is the height of the prism

we have

*

*

substitute the values

*


4 0
1 year ago
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