Answer: 28 ft
Step-by-step explanation:
Multiply 3,4, and 7 to get 84 ft cubed. To find the volume of a pyramid, divide by 3 to get 28 ft.
Answer:

Explanation: We need to find the area of the triangle, We know that the area of any right triangle is:

Therefore in the information given we have the following:

Therefore the Area of this triangle is as follows:

Note! Units are centimeter-squared
Answer: 2.1925153x10 to the 3rd
Step-by-step explanation: hope it helps
Complementary angles together form a 90 degree angle. I don’t understand the question to well, but if two angles are next to each other and one of them is ten degrees, the other angle would be 80 is Together they form a right angle. Does my explain make sense? Sorry I hope this helps
Answer:

Step-by-step explanation:
Let's start by factoring everything:


Now, you can cancel out some terms:

Now, when you divide a fraction by another fraction, that is the same as multiplying the first fraction by the reciprocal of the second one:


Hope this helps!