Whats the area of this triangle?

Mathematics

1 answer:

Brut [27]3 years ago

6 0

I believe you answer is 145

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Help me please!!!!!!!!

Vedmedyk [2.9K]

48 ÷ 200 = 0.24

0.24 × 25 = 6

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4 0

3 years ago

Check all that apply. pi/4 is the reference angle for:

ANEK [815]

Answer:

answer is c

I took a quiz with the question and got 100%

3 0

2 years ago

Describe and correct the error in finding the tenth term of the arithmetic sequence 4, 12, 20, 28.

ycow [4]

Answer: The tenth term is 76

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Explanation:

We use this arithmetic sequence formula to get the nth term

$a_n = a_1 + d(n-1)$

Plug in $a_1 = 4, \ d = 8, \ n = 10$ and you should get the following:

$a_n = a_1 + d(n-1)\\\\a_{10} = 4 + 8(10-1)\\\\a_{10} = 4 + 8(9)\\\\a_{10} = \textbf{76}\\\\$

The tenth term is <u>76</u>

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We can verify this by listing out the terms one by one. Start at 4, add on 8 each time, until you generate the 10th term. A table like the one shown below is a good way to keep track of all the terms.

$\begin{array}{c|c}\boldsymbol{n} & \boldsymbol{a_n}\\1 & 4\\2 & 12\\3 & 20\\4 & 28\\5 & 36\\6 & 44\\7 & 52\\8 & 60\\9 & 68\\10 & \textbf{76}\\\end{array}$

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In short, the error is with the "10" in the expression 4+10(8). The student should have used 9 instead. This is because of the n-1 term in $a_n = a_1 + d(n-1)$ which shifts everything one spot to the left.

7 0

2 years ago

Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.

OverLord2011 [107]

Answer:

Here you go, I think

Step-by-step explanation: