Answer:
It is scalene
Step-by-step explanation:
Because scalene triangles have no equal side lengths
Answer:
∠XDQ : 41°
∠UXD: 139 °
Step-by-step explanation:
Allow me to rewrite your answer for a better understanding and please have a look at the attached photo.
<em>A segment XD is drawn in rectangle QUAD as shown below.
</em>
<em>What are the measures of ∠XDQ and ∠UXD ?
</em>
My answer:
As we can see in the photo, ∠ADX = 49° and ∠ADU =90°
=> ∠XDQ = ∠ADU - ∠ADX
= 90° - 49° = 41°
In the triangle ADX, we can find out the angle of ∠DXA
= 180° - ∠DAX - ∠ADX
= 180° - 90° - 49°
= 41°
=> <em>∠UXD = </em>180° - ∠DXA (Because UA is a straight line)
=180° - 41°
= 139 °
Given:
The population P of a city is given by,
To find:
The time taken for the population to reach 130,000.
Explanation:
Substituting P = 130,000 in the given function, we get
Therefore, the number of years required for the population to reach 130,000 is 4.89years.
Final answer:
The number of years required is 4.89years.
<span>So we need to find the perimeter of the figure which consists of a rectangle whos one side is a=9 inches long and the other side is b=8 inches long, and a semicircle whos radius is one half of one side of the rectangle or r=b/2=4inches. The formula for the perimeter of a circle is Ps=(2*r*pi)/2=r*pi and for the rectangle is Pr=2a+2b. We need to calculate the perimeter of a rectangle without one side like on the figure so lets modify the formula to: Pr=a+2b. Now we simply put in the numbers: Pr=8 inches + 2*9 inches= 8 inches + 18 inches = 26 inches. Ps=4 inches*3.14=12.56. When we sum the perimeters we get: Ps+Pr=12.56+26=38.56 inches. So the correct answer is C. </span>