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trapecia [35]
3 years ago
8

( EXTRA POINTS PLEASE HELP ) you have a square that measures 5 cm as you have a triangle that has a base of 5 cm and a height of

8cm what is the total area of the square and the triangle​
Mathematics
1 answer:
Ludmilka [50]3 years ago
7 0

Step-by-step explanation:

{5}^{2}  +  \frac{5 \times 8}{2}  =  \\  = 25 + 20 =  \\  = 45

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Which of these is one of the most expensive fees you will encounter with checking accounts?
grigory [225]

Answer:

atm fees that is your answer

Step-by-step explanation:

8 0
3 years ago
How many terms are there in the sequence 1, 8, 28, 56, ..., 1 ?
BabaBlast [244]

Answer:

9 terms

Step-by-step explanation:

Given:  

1, 8, 28, 56, ..., 1

Required

Determine the number of sequence

To determine the number of sequence, we need to understand how the sequence are generated

The sequence are generated using

\left[\begin{array}{c}n&&r\end{array}\right] = \frac{n!}{(n-r)!r!}

Where n = 8 and r = 0,1....8

When r = 0

\left[\begin{array}{c}8&&0\end{array}\right] = \frac{8!}{(8-0)!0!} = \frac{8!}{8!0!} = 1

When r = 1

\left[\begin{array}{c}8&&1\end{array}\right] = \frac{8!}{(8-1)!1!} = \frac{8!}{7!1!} = \frac{8 * 7!}{7! * 1} = \frac{8}{1} = 8

When r = 2

\left[\begin{array}{c}8&&2\end{array}\right] = \frac{8!}{(8-2)!2!} = \frac{8!}{6!2!} = \frac{8 * 7 * 6!}{6! * 2 *1} = \frac{8 * 7}{2 *1} =2 8

When r = 3

\left[\begin{array}{c}8&&3\end{array}\right] = \frac{8!}{(8-3)!3!} = \frac{8!}{5!3!} = \frac{8 * 7 * 6 * 5!}{5! *3* 2 *1} = \frac{8 * 7 * 6}{3 *2 *1} = 56

When r = 4

\left[\begin{array}{c}8&&4\end{array}\right] = \frac{8!}{(8-4)!4!} = \frac{8!}{4!3!} = \frac{8 * 7 * 6 * 5 * 4!}{4! *4*3* 2 *1} = \frac{8 * 7 * 6*5}{4*3 *2 *1} = 70

When r = 5

\left[\begin{array}{c}8&&5\end{array}\right] = \frac{8!}{(8-5)!5!} = \frac{8!}{5!3!} = \frac{8 * 7 * 6 * 5!}{5! *3* 2 *1} = \frac{8 * 7 * 6}{3 *2 *1} = 56

When r = 6

\left[\begin{array}{c}8&&6\end{array}\right] = \frac{8!}{(8-6)!6!} = \frac{8!}{6!2!} = \frac{8 * 7 * 6!}{6! * 2 *1} = \frac{8 * 7}{2 *1} = 28

When r = 7

\left[\begin{array}{c}8&&7\end{array}\right] = \frac{8!}{(8-7)!7!} = \frac{8!}{7!1!} = \frac{8 * 7!}{7! * 1} = \frac{8}{1} = 8

When r = 8

\left[\begin{array}{c}8&&8\end{array}\right] = \frac{8!}{(8-8)!8!} = \frac{8!}{8!0!} = 1

The full sequence is: 1,8,28,56,70,56,28,8,1

And the number of terms is 9

3 0
3 years ago
Millie has 15 counters. Sam has 8 counters. Write a sentence comparing how many counters each child has.
masya89 [10]

Answer:

Millie has 15 counters, and Sam has 8.

Step-by-step explanation:

s

7 0
3 years ago
Which number completes the inequality?
aliya0001 [1]
The answer to it would be C.
5 0
3 years ago
PLSSS HELP ME OUT WITH THIS QUESTION, PLS PLS PLS AND PLS EXPLAIN!!!
Marina CMI [18]

Answer:

C. 15

Step-by-step explanation:

1. First, let's solve the system of equations; -m - n = 5, m - n = -3

Solve -m - n = 5 for m.

  • -m -n = 5
  • -m-n+n=5+n
  • -m = n + 5
  • \frac{-m}{-1} = \frac{n+5}{-1}
  • m = -n - 5

Substitute -n - 5 for m in m - n = -3.

  • m - n = -3
  • -n - 5 - n = -3
  • -2n-5=-3
  • -2n-5+5=-3+5
  • -2n = 2
  • \frac{-2n}{-2} = \frac{2}{-2}
  • n = -1  

Substitute -1 for n in m = -n - 5.

  • m = -n - 5
  • m = -(-1) - 5
  • m = 1 - 5
  • m = -4

2. Okay, now that we know m = -4 and n = -1, let's solve for m^2 -n^2.

  • m^2-n^2
  • (-4)^2-(-1)^2
  • 16 - (-1)^2
  • 16 - 1
  • 15

Therefore, the answer is C. 15!

4 0
2 years ago
Read 2 more answers
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