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3 years ago

Median of 40 49 62 56 68 39 50 61 54 44

Mathematics

2 answers:

I am Lyosha [343]3 years ago

7 0

Answer:

Step-by-step explanation:

first you rearange them

39 40 44 49 50 54 56 61 62 68

| |

(50+54)/2

104/2

Vsevolod [243]3 years ago

6 0

She/he is right ^^^ i agree that’s what i got to

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The legs of a right triangle have the following measurements: 5 and 10 inches. What is the length of the hypotenuse??

RideAnS [48]

Answer:

$5\sqrt{5}$

Step-by-step explanation:

1. $5^2 + 10^2 = c^2$

2. $125 = c^2$

3. $c=5\sqrt{5}$

7 0

2 years ago

Algebraic Reasoning please help!

stiv31 [10]

Answer:

$\left[\begin{array}{ccc}7\\4\\2\end{array}\right]$

The answer is a single-column matrix (7,4,2)

Step-by-step explanation:

In such multiplication of matrices, you have to proceed by multiplying each ROW of the first matrix by the COLUMN of the second matrix. So,

$\left[\begin{array}{ccc}3&6&1\end{array}\right] * \left[\begin{array}{ccc}2\\0\\1\end{array}\right] = (3 * 2) + (6 * 0) + (1 * 1) = 6 + 0 + 1 = 7$

then...

$\left[\begin{array}{ccc}2&4&0\end{array}\right] * \left[\begin{array}{ccc}2\\0\\1\end{array}\right] = (2 * 2) + (4 * 0) + (0 * 1) = 4 + 0 + 0 = 4$

and

$\left[\begin{array}{ccc}0&6&2\end{array}\right] * \left[\begin{array}{ccc}2\\0\\1\end{array}\right] = (0 * 2) + (6 * 0) + (2 * 1) = 0 + 0 + 2= 2$

I hope it helps.

5 0

3 years ago

1. x=1/(root3-root2). find rootx-(1/rootx) 2. if x=[root(a+2b)+root(a-2b)]/[root(a+2b)-root(a-2b]. show that bx^2-ax+b=0

timofeeve [1]

1. x = 1/ ( $\sqrt{3} - \sqrt{2)}$ = $\sqrt{3}+ \sqrt{2}$ ;
( $\sqrt{x} -1/ \sqrt{x} )^{2} = x + 1/x - 2 =$ =

6 0

3 years ago

Read 2 more answers

An air plane moves at a constant speed of 120 miles per hour for 3 hours. How far does it go?

Anvisha [2.4K]

Answer: 360

Step-by-step explanation: All you got to do is multiply 120 by 3

7 0

3 years ago

Read 2 more answers

Please math , help

Furkat [3]

Answer:

As both the mean and standard deviation are in the desired ranges, the tool passes the technical control.

Step-by-step explanation:

Mean of the batch:

The mean of the batch is the sum of all values divided by the number of items. So

$M = \frac{199+204+201+197+195+204+200}{7} = 200$

Mean in the desired interval.

Standard deviation:

Square root of the sum of the difference squared between each term and the mean, divided by the number of items. So

$S = \sqrt{\frac{(199-200)^2+(204-200)^2+(201-200)^2+(197-200)^2+(195-200)^2+(204-200)^2+(200-200)^2}{7}} = 1.18$

As both the mean and standard deviation are in the desired ranges, the tool passes the technical control.

7 0

3 years ago