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3 years ago

I lowkey need help on this whos got the answer

Mathematics

2 answers:

Mariana [72]3 years ago

7 0

find the area A=b*h/2

bases=11

height=23

A=11*23/2

A=126.5 square unit

SpyIntel [72]3 years ago

4 0

Answer:

11, square with side length of 11 units

Step-by-step explanation:

We know that to find the area of a triangle you follow this formula :

$1/2bh$

The area of this triangle is 121 ( 22 * 11 * .5)

And we know that the formula for the area of a square is

$length * width$

We also know that all sides of a square are the same length, so we can use the equation of

$Length^2 =area$

We can now substitute the area of the triangle in for the area of the square.

$Length^2 =121$

Find the square root of both sides

$\sqrt{length^2} = \sqrt{121}$

Simplify

$length=11$

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3 years ago

Do set of numbers DO NOT form a Right Triangle?<br> O 9, 12, 15<br> 5, 12, 13<br> 3,4,5<br> O 4,5,6

NeTakaya

Answer:

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2 years ago

As an introduction to probability, a student asked to roll a fair, six sided number cube seven times the results of those seven

frosja888 [35]

Using it's concept, the standard deviation of the data is of 3.742.

<h3>What are the mean and the standard deviation of a data-set?</h3>

The mean of a data-set is given by the <u>sum of all values in the data-set, divided by the number of values</u>.

The standard deviation of a data-set is given by the square root of the <u>sum of the differences squared between each observation and the mean, divided by the number of values</u>.

For this data-set, the mean is:

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Hence the standard deviation is:

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3 0

1 year ago

Help me please for the brainliest answer

AveGali [126]

Answer with Step-by-step explanation:

$a) {n}^{2} + 3 \\ \\ n = 1 \\ {1}^{2} + 3 \\ 1 + 3 \\ = 4 \\ \\ n = 2 \\ {2}^{2} + 3 \\ 4 + 3 \\ = 7 \\ \\ n = 3 \\ {3}^{2} + 3 \\ 9 + 3 \\ = 12 \\ \\ n = 4 \\ {4}^{2} + 3 \\ 16 + 3 \\ = 19 \\ \\ n = 10 \\ {10}^{2} + 3 \\ 100 + 3 \\ = 103$

In this sequence,

1st term = 4

2nd term = 7

3rd term = 12

4th term = 19

10th term = 103

$b)2 {n}^{2} \\ \\ n = 1 \\ 2 \times {1}^{2} \\ 2 \times 1 \\ = 2 \\ \\ n = 2 \\ 2 \times {2}^{2} \\ 2 \times 4 \\ = 8 \\ \\ n = 3 \\ 2 \times {3}^{2} \\ 2 \times 9 \\ = 18 \\ \\ n = 4 \\ 2 \times {4}^{2} \\ 2 \times 16 \\ = 32 \\ \\ n = 10 \\ 2 \times {10}^{2} \\ 2 \times 100 \\ = 200$

in this sequence,

1st term = 2

2nd term =8

3rd term = 18

4th term =32

10th term = 200

4 0

3 years ago

Caroline, krutika and Natasha share some sweets in the ratio 4:5:1

Harrizon [31]

Answer:

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4 0

3 years ago

Read 2 more answers