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Gelneren [198K]
3 years ago
11

PLEASEEEE HELP URGENT

Mathematics
1 answer:
kotegsom [21]3 years ago
7 0

Answer:

7.1 cm

Step-by-step explanation:

The diagonal of a cube connects two opposite corners.

You can use the diagonal of a cube in a right triangle in which it is the hypotenuse. The legs of the triangle are a diagonal of a face and an edge.

Let the length of the edge be s.

a^2 + b^2 = c^2

s^2 + 10^2 = (\sqrt{150})^2

s^2 + 100 = 150

s^2 = 50

s = \sqrt{50}

s = 5\sqrt{2}

s = 7.1

Answer: 7.1 cm

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tankabanditka [31]

Answer:

I think it is a

Step-by-step explanation:

7 0
3 years ago
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4) A jellybeans machine contains 25 green jellybeans, 57 red jellybeans, 31
stiv31 [10]
The answer is 12.5 because if you add them all together you get 200 and 25 of 200% is 12.5.
6 0
3 years ago
What is the simplified expression for the expression below? -1/5(5x+20)-1/4(4x-28)
e-lub [12.9K]

You need to distribute the numerical factors for each term in the parenthesis:

\dfrac{-1}{5}(5x+20)-\dfrac{1}{4}(4x-28) = \dfrac{-1}{5}\cdot 5x + \dfrac{-1}{5}\cdot 20 + \dfrac{-1}{4} \cdot 4x + \dfrac{-1}{4} \cdot (-28)

This equals

-x-4-x+7 = -2x+3

7 0
3 years ago
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Find the initial point P of a vector u with terminal point Q(2,0,2), such that:9Fdhe iiial point P of a vector iu with terminal
denpristay [2]

Answer:

  a)  P = (-3, 4, 3)

  b)  P = (7, 4, 1)

Step-by-step explanation:

a) You want Q-P = (5, 4, -1) where Q = (2, 0, 2). Solving for P, we get ...

  P = Q - (5, 4, -1) = (2-5, 4-0, 2-(-1))

  P = (-3, 4, 3)

__

b) The vector in the opposite direction of the one given is the given one multiplied by -1.

  P = Q - (-1)(5, 4, -1) = (2+5, 0+4, 2-1)

  P = (7, 4, 1)

3 0
3 years ago
Savemore National bank starts the day with 2.81 times 10^4 dollars in the vault. At the end of the day, the bank has 3.5 times 1
suter [353]

ANSWER

There is

3.219\times  {10}^{5}

more money in the vault in the evening than in the morning.

EXPLANATION

The amount of money in the vault in the morning is

2.81 \times  {10}^{4}

The amount of money in the vault at the end of the day is:

3.5 \times  {10}^{5}

To find how much more money is in the vault at the end of the day than there was in the morning, we subtract to get:

3.5 \times  {10}^{5}  - 2.81 \times  {10}^{4}

= 3.5 \times 100000 - 2.81 \times 10000

350000 - 28100= 321900

Therefore, there is

3.219\times  {10}^{5}

more money in the vault.

4 0
4 years ago
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