Answer: Total cost of the models the town buy = $1050
Solution:
The science museum sells dinosaurs models to the town school and town library for $105 each.
The two library buys 4 models and cost of each model $105
Total cost pay by library = 4x105 = $420
The school buys 6 models and cost of each model $105
Total cost pay by school = 6x105 = 630
We need to calculate total cost of the models the town buys
Total cost = Cost buy library + Cost buy school
Total cost = 420+630
Total cost = $1050
Answer:
The surface area of the model pyramid is 
Step-by-step explanation:
we know that
The surface area of the pyramid is equal to
where
B is the area of the base of the pyramid
LA is the lateral surface of the pyramid
<em>Find the area of the base B</em>
-----> is a square
<em>Find the lateral surface area of the pyramid LA</em>
we know that
The lateral surface area is equal to the area of its four triangular faces
![LA=4[\frac{1}{2}(11)(15)]=330\ in^{2}](https://tex.z-dn.net/?f=LA%3D4%5B%5Cfrac%7B1%7D%7B2%7D%2811%29%2815%29%5D%3D330%5C%20in%5E%7B2%7D)
<em>Find the surface area of the pyramid</em>
Substitute the values
4(6) + 5(17) =
24 + 5(17) = (multiplication)
24 + 85 = (multiplication)
109 (addition).
So, the answer to your equation is 109 when x = 6 and y = 17.
Answer:
x⁴ + 6x² + 9
Explanation:
To answer this question, we will multiply each term from the first bracket by each term from the second bracket and then combine like terms to get the final expression.
This can be done as follows:
(x² + 3)(x² + 3)
x²(x²) + x²(3) + 3(x²) + 3(3)
x⁴ + 3x² + 3x² + 9
x⁴ + 6x² + 9
Hope this helps :)
