Answer:
$2520
Step-by-step explanation:
→ Work out the area of the drive way
18 m × 4 m= 72 m²
→ Multiply the area by the cost per square metre
72 m² × $35 = $2520
The values of (x,y) are when x is 0 then you are 18 on the y axis.
We have given that,
(0, 18)
We have to determine whether the ordered pair could be the missing values represented by (x, y).
<h3>
What is the ordered pair?</h3>
An ordered pair is a pair of objects.
The order in which the objects appear in the pair is significant
The ordered pair is different from the ordered pair unless a = b.
Ordered pairs are also called 2-tuples, or sequences of length 2.
Therefore, The values of (x,y) are when x is 0 then you are 18 on the y axis.
To learn more about the ordered pair visit:
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Answer:
<h2>n = 72</h2>
Step-by-step explanation:
![\frac{n}{3} - 7 = 17](https://tex.z-dn.net/?f=%20%5Cfrac%7Bn%7D%7B3%7D%20%20-%207%20%3D%2017)
Using the addition property add 7 to both sides
That's
![\frac{n}{3} + 7 - 7 = 17 + 7 \\ \frac{n}{3} = 24](https://tex.z-dn.net/?f=%20%5Cfrac%7Bn%7D%7B3%7D%20%20%20%2B%207%20-%207%20%3D%2017%20%2B%207%20%5C%5C%20%20%5Cfrac%7Bn%7D%7B3%7D%20%20%3D%2024)
Next multiply both sides by 3 to eliminate the fraction
That's
![3 \times \frac{n}{3} = 24 \times 3](https://tex.z-dn.net/?f=3%20%5Ctimes%20%20%5Cfrac%7Bn%7D%7B3%7D%20%20%3D%2024%20%5Ctimes%203)
We have the final answer as
<h3>n = 72</h3>
Hope this helps you
There is a theorem that says that this angle (formed by thre points on the circumference) is half such arc called EF.
We can deduct it as well.
1) Call O the center of the circle. The central angle (EOF) = arc EF = 151°
2) Draw a chord from F to D and other chord from D to E.
You have constructed two triangles, FOD and DOE.
3) Triangle FOD has two sides equals (because both are the radius of the circcle). Then, this is an isosceles triangle and it has two angles of the same measure. Call this measure a.
4) Triangle DOE is also isosceles, for the same reason explained in the poiint 3. Call the measure of its equal angles b.
5) The sum of the angles of the two triangles is 180° + 180 ° = 360°.
This is a + a + b + b + (360 - central angle) = 360°
=> 2a + 2b = central angle
=> 2(a+b) = cantral angle
=> (a+b) = central angle / 2 = 151° / 2 =71.5°
(a+b) is the angle that you are looking for.
Then the answer is 71.5°