In this question, it is given that the eighth term is 78 and the explicit formula is

And the recursive formula is

And we have to find the 20th term . And for that, we put 20 for x in the explicit formula. That is

Therefore on using the explicit formula, we will get 198 as the 20th term .
Answer: b=2(square root of 2) and a=4
Step-by-step explanation:
Since this is a 45-45-90 triangle we know that side b is equal to
.
In a 45-45-90 triangle, the hypotenuse is equal to
this means in order to find missing side length a, we have to multiply
this will give us 4
so the missing side lengths are,
and 
Answer:
The answer is
" THe middle triangle is scalene"
and "the right and left triangle are isosceles"
Step-by-step explanation:
This is because B, and D are wrong.
B is wrong because all three sides are different lengths
D is wrong because the right and left triangles are not equalateral
give brainliest please!
hope this helps :)
Answer:
$3,075
Step-by-step explanation:
Given, for a triangular sail (assuming its a right triangle)
base dimension = 15 feet
height = 20 feet
Area of sail,
= area of right triangle
= 1/2 x base x height
= 1/2 x 15 x 20
= 150 ft²
we are given that the price per squre foot is $20.50
hence cost of sail
= price per square foot x area of sail
= $20.50 x 150 ft²
= $3,075
14 * 45 = 630
The number that should be put in the box is 630