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Rama09 [41]
3 years ago
11

What is the area of the triangle below (in square units)? 10 mm 90mm

Mathematics
2 answers:
bixtya [17]3 years ago
7 0

Answer:

450

Step-by-step explanation:

allochka39001 [22]3 years ago
3 0

Answer:

450 square units, the formula is bxh divided by 2

Step-by-step explanation:

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What is the mean and mad of this data set?
larisa86 [58]

Answer:

The mean number of gerbils seen per day is 6.

The mean absolute deviation of the data is 2.29.

Step-by-step explanation:

The mean of a data set is the value that represents the entire data set. It is the average value.

The formula to compute the mean of a data set is:

\bar x=\frac{1}{n}\sum X

The mean absolute deviation (MAD) of a data set is the average distance amid each value and the mean. The MAD provides us with an idea about the deviation in the data set.

The formula to calculate the value of MAD is:

MAD=\frac{1}{n}\sum |x-\bar x|

The data set for the number of gerbils seen per day is:

S = {2, 3, 5, 7, 8, 8, 9}

Compute the mean of the data as follows:

\bar x=\frac{1}{n}\sum X

  =\frac{1}{7}\times [2+3+5+7+8+8+9]\\\\=\frac{1}{7}\times 42\\\\=6

The mean number of gerbils seen per day is 6.

Compute the mean absolute deviation of the data as follows:

MAD=\frac{1}{n}\sum |x-\bar x|

          =\frac{1}{7}\times [|2-6|+|3-6|+|5-6|+|7-6|+|8-6|+|8-6|+|9-6|]\\\\=\frac{1}{7}\times 16\\\\=2.2857\\\\\approx 2.29

Thus, the mean absolute deviation of the data is 2.29.

5 0
3 years ago
How do you solve 2+x=-7
Mars2501 [29]

Answer:

x = -9

Step-by-step explanation:

Step 1: Write equation

2 + x = -7

Step 2: Solve for <em>x</em>

  1. Subtract 2 on both sides: x = -9

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

  1. Substitute: 2 - 9 = -7
  2. Subtract: -7 = -7
7 0
3 years ago
Read 2 more answers
Find sin angle∠ A. <br> A. 3/5<br> B. 4/5<br> C. 1<br> D. 5/4
Rzqust [24]

Answer:

The answer is B.

Step-by-step explanation:

Recall SohCahToa, where sin(A)=opp/hyp.

The opposite side (to angle A) here is 8, while the hypotenuse is 10.

Thus, we have:

sin(A)=8/10=4/5

The correct answer is B.

8 0
3 years ago
2/7, solve for n, explain too please
kirill [66]

Answer:

n = 19.2

Step-by-step explanation:

12 / 5 = n / 8

n = 12 * 8 / 5

n = 96 / 5

n = 19.2

3 0
3 years ago
Read 2 more answers
A puppy and a kitten are 180 meters apart when they see each other. The puppy can run at a speed of 25 m/sec, while the kitten c
ser-zykov [4K]

Answer: 36 sec

Step-by-step explanation:

Let

x------> distance the kitten runs before being caught by the puppy

Remember that

The speed is equal to divide the distance by the time

v=d/t

solve for t

t=d/v

so

equate the time

x/20=(180+x)/25

25x=20(180+x)

25x=3,600+20x

25x-20x=3,600

x=3,600/5=720 m

t=d/v=720/20=36 sec

or

t=(720+180)/25=900/25=36 sec

6 0
3 years ago
Read 2 more answers
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