Here we have some problems about circles, the solutions are:
- a) 490.6 yd^2
- b) x = 15
- c) x = 27
<h3>
How to find the area of a circle?</h3>
We know that for a circle of diameter D, the area is given by:
A = pi*(D/2)^2
where pi = 3.14
In the image we can see that the diameter of the circle is 25 yd, replacing that in the area equation we get:
A = 3.14*(25yd/2)^2 = 490.6 yd^2
<h3>How to find the value of x?</h3>
<u>For the second image</u>, each line creates two 180° angles. So, if we look at the tilted line, we can see that it is divided in two angles, one of 37° and the other that depends of x, so we can write:
180° = 37° + (9x + 8)°
180° - 37° - 8° = (9x)°
135°/9° = x = 15
So the value of x is 15.
For the last image:
Notice that we have a 90° angle denoted, then <u>the other 3 sections must add up to 270°.</u>
270° = 54° + (2x + 21)° + (5x + 6)°
Now we solve this for x:
270 - 54 - 21 - 6 = 2x + 5x
189 = 7x
189/7 = x = 27
x is equal to 27
If you want to learn more about circles, you can read:
brainly.com/question/25306774
Answer:
Graph is below
Step-by-step explanation:
I graphed the point on the graph below.
Answer:
because it voted to be independent from america
Step-by-step explanation:
Answer:
Sugar Maple
8 + 1.5x = 15.5
Fraser Fir
8 + 0.25x = 9.25
Sycamore
8 + 2.5x = 12.5
Oak
8 + 4x = 28
It <u>cannot</u> be <em>Red Maple</em> or <em>Linden</em>, because they are multiplying the number of years by the height it already has. We are looking for the height it <u>will have</u> BASED on the <u>rate</u> that Chang calculated.
Therefore, we are multiplying the <u>RATE</u> by the <u>NUMBER OF YEARS (x)</u>
Step-by-step explanation:
It cannot be red maple, because you are multiplying the height it already has, and not the rate it will grow by. The same goes for Linden.
The right expression to represent the growth of Red Maple would be
8 + 3x = 23
The right expression to represent the growth of Linden would be
8 + 1.5x = 15.5
Therefore, again, the <u>correct answer(s)</u> would be: <u>Sugar Maple, Fraser Fir, Sycamore, and Oak</u>.
Answer:
You need a point or a slope to begin.
Step-by-step explanation: Once you have a point and the slope, then you can plug in to find the b value, then write your equation in y = mx + b form
