What does x = help please

Mathematics

2 answers:

Lunna [17]3 years ago

6 0

Answer:

x = 15

Step-by-step explanation:

It is a 90 degree angle.

2x + 4x = 90 degrees

6x = 90 degrees

90 divided by 6 = 15

x = 15

Allisa [31]3 years ago

4 0

Answer:

x= 90/4*2x

Step-by-step explanation:

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4 years ago

on friday, robbie sold 6 1/10 pitchers of lemonade from his lemond stand. On Saturday, he sold 1/4 as much lemonde as on Friday.

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1.) The island shown has a population of 12,175 people. Find the population

miv72 [106K]

Answer:

Population density = $148.22\ \text{people per square kilometer}$

Step-by-step explanation:

The attached figure shows the dimension of an island.

Population density is equal to total population per unit land area.

Firstly we will find the area of the triangle using Pythagoras theorem as follows :

$H^2=B^2+P^2$

H is Hypotenuse, B is base and P is perpendicular

$B=\sqrt{H^2-P^2} \\\\B=\sqrt{(18.5)^2-(11.1)^2} \\\\B=14.8\ km$

Area of triangle is given by :

$A=\dfrac{1}{2}\times b\times P\\\\A=\dfrac{1}{2}\times 14.8\times 11.1\\\\A=82.14\ km^2$

$\text{Population density}=\dfrac{\text{Total population}}{\text{land area}}\\\\=\dfrac{12175 }{82.14}\\\\=148.22\ \text{people per square kilometer}$