3 years ago

What is the area of the figure? (See image above for figure and answer choices)

Mathematics

1 answer:

shusha [124]3 years ago

5 0

The area is A. 36cm
A=b•h
Therefore, 6•4=24
3•4=12
24+12=36
Hope this helps:))

You might be interested in

Write the number in two other forms 6.7

kotegsom [21]

Word form - six.seven Expand form - 6 + 0.7

3 0

3 years ago

Write an inequality to represent the possible<br> combinations of x cupcakes and y cakes sold.

kolezko [41]

Answer:

The inequality for this would be n ≥ 20.

We know this because it must be larger than 40. We also know it can possibly be equal because the statement says "at least".

Step-by-step explanation:

6 0

2 years ago

Tali is trying to find the thickness of a page of his telephone bookTo do this, he takes a measurement and finds out that 550 pa

alina1380 [7]

Answer:245

Step-by-step explanation:

hope this helps

5 0

2 years ago

HELPPPPPPPPPPPPPPPPPPPPP

Vika [28.1K]

Answer:

-1.9b + 7.8

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Solve the following recurrence relation: <br> <img src="https://tex.z-dn.net/?f=A_%7Bn%7D%3Da_%7Bn-1%7D%2Bn%3B%20a_%7B1%7D%20%3D

-Dominant- [34]

By iteratively substituting, we have

$a_n = a_{n-1} + n$

$a_{n-1} = a_{n-2} + (n - 1) \implies a_n = a_{n-2} + n + (n - 1)$

$a_{n-2} = a_{n-3} + (n - 2) \implies a_n = a_{n-3} + n + (n - 1) + (n - 2)$

and the pattern continues down to the first term $a_1=0$ ,

$a_n = a_{n - (n - 1)} + n + (n - 1) + (n - 2) + \cdots + (n - (n - 2))$

$\implies a_n = a_1 + \displaystyle \sum_{k=0}^{n-2} (n - k)$

$\implies a_n = \displaystyle n \sum_{k=0}^{n-2} 1 - \sum_{k=0}^{n-2} k$

Recall the formulas

$\displaystyle \sum_{n=1}^N 1 = N$

$\displaystyle \sum_{n=1}^N n = \frac{N(N+1)}2$

It follows that

$a_n = n (n - 2) - \dfrac{(n-2)(n-1)}2$

$\implies a_n = \dfrac12 n^2 + \dfrac12 n - 1$

$\implies \boxed{a_n = \dfrac{(n+2)(n-1)}2}$

4 0

2 years ago