Trapezoid would be your answer your welcome! :)
9514 1404 393
Answer:
- ornament area = 379.8 cm²
- paint needed: 114 bottles
Step-by-step explanation:
The surface area of one cone with slant height s and radius r is ...
SA = πr² +πrs = πr(r+s)
For the cone that is half an ornament, the surface area is ...
SA = (3.14)(4.2 cm)(4.2 cm + 10.2 cm) = 189.9072 cm²
The area of one ornament is the area of two cones:
one ornament area = 2×189.9072 cm² ≈ 379.8 cm²
60 ornaments will be 120 cones, so will have a total surface area of ...
total area = 120(189.9072 cm²) = 22,788.864 cm²
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If one bottle of paint will cover 201 cm², then the number of bottles of paint required is ...
(22788.864 cm²)/(201 cm²/bottle) ≈ 113.4 bottles
<h2>H
ello!</h2>
The answer is:
The quadratic function that fits the given picture is:
![y=-3x^{2}+13x-5](https://tex.z-dn.net/?f=y%3D-3x%5E%7B2%7D%2B13x-5)
<h2>
Why?</h2>
We can solve the problem and find the correct function that fits the curve below by finding which function intercepts the y-axis at -5 (we can see it from the picture), also, we need to look for a function that represents a parabola opening upwards. We need to remember that when a parabola is opening upwards, its quadratic term coefficient is negative.
So, we can see that from the given functions, the only function that represents a parabola opening upwards and its y-intercept is located at y equal to -5 is the second option:
![y=-3x^{2}+13x-5](https://tex.z-dn.net/?f=y%3D-3x%5E%7B2%7D%2B13x-5)
We have that :
![a=-3(negative)\\b=13\\c=-5(y-intercept)](https://tex.z-dn.net/?f=a%3D-3%28negative%29%5C%5Cb%3D13%5C%5Cc%3D-5%28y-intercept%29)
We can see that the quadratic term (a) is negative, and the quadratic function intercepts the y-axis at y equal to -5.
Hence, the answer is:
The quadratic function that fits the given picture is:
![y=-3x^{2}+13x-5](https://tex.z-dn.net/?f=y%3D-3x%5E%7B2%7D%2B13x-5)
Have a nice day!
Note: I have attached a picture for better understanding.
Answer:
-8
Step-by-step explanation:
Given that,
n = -3
r = -8
Now we have to find the value of the given expression.
For that, you have to replace n and r with ( -3 ) and ( -8 ) respectively.
Let us solve now.
−5 + 3 ( −2r + 4n )
-5 + 3 ( -2 × -8 + 4 × -3 )
-2 ( 16 - 12 )
-2 × 4
-8
Let me know if you've any other questions. :-)
- Hi1315
3 miles because I converted feet two miles and got 3 that’s that the answer