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Stella [2.4K]
3 years ago
7

Please please help me with this

Mathematics
2 answers:
ololo11 [35]3 years ago
8 0

Answer:

x = 5 units

Step-by-step explanation:

Use the Pythagorean Theorem:

a^2 +  b^2 = c^2

Set Values for Variables:

Side Length - a = 12

Side Length - b = x

Hypotenuse - c = 13

<em>* Hypotenuse is always opposite from the right angle.</em>

Solve:

12^2 + b^2 = 13^2

144 + b^2 = 169  

<em>(Subtract 144 from both sides to get 25)</em>

b^2 = 25

<em>(Find square root of 25 and b^2)</em>

b = 5

Conclude:

Now you know x (otherwise known as the b-value), is equal to 5 units.

BartSMP [9]3 years ago
5 0

Answer:

x = 5

Step-by-step explanation:

Just use the Pythagorean Triangle:

13^2 - 12^2 = x^2

x^2 = 25

x = 5

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1×+3=4×-6<br>need help finding this out
sladkih [1.3K]

Answer:

x = 3

Step-by-step explanation:

x + 3 = 4x - 6

add 6 to both sides

x + 9 = 4x

subtract x from both sides

9 = 3x

divide 3 from both sides

x = 3

3 0
3 years ago
Read 2 more answers
How do you end up with 0=0
Eva8 [605]
Ok so first plug in y for in the equation 2x-2y=12
Therefore 2x - 2(x -6)=12
Then distribute the two to the x and the -6 
2x-2x+12=12
The 2x's cancel leaving you with 
12=12
From there you could subtract the 12 from both sides to get 0=0, I assume
4 0
3 years ago
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Daredevil Danny was cliff jumping. He jumped off a cliff that was 1 4 . 2 14.214, point, 2 meters above the surface of the water
iragen [17]

<em>Question:</em>

<em>Daredevil Danny was cliff jumping. He jumped off a cliff that was 14.2 meters above the surface of the  water. At the end of his jump, Danny was 2.3 meters below the surface of the water. </em>

<em>The following equation describes this situation  14.2 + (-16,5) = -2.3 .</em>

<em>What does -16.5 tell us?</em>

<em></em>

Answer:

The displacement between his current position and his initial position

Step-by-step explanation:

Given

Initial\ Position = 14.2m

Final\ Position = -2.3m

14.2 + (-16.5) = -2.3

Required

What does -16.5 represents?

<em>To understand this, we need to first calculate the displacement between his initial and final position</em>

<em></em>

Displacement = Final\ Position - Initial\ Position

Displacement = -2.3m - 14.2m

Displacement = - 16.5m

<em>So: -16.5m is the total displacement from the start position (i.e. off the cliff) and current position (beneath the water surface)</em>

6 0
3 years ago
Work out the size of each angle in this triangle. (write answers in ascending order)
nignag [31]

First we add all the angles together

x + 2x - 20 + 2x + 10 = 5x - 10

Now, you should know that all the angles in a triangle add up to 180°

180 = 5x - 10

Move the 10 to the other side

190 = 5x

Divide both sides by 5

x = 38

So the angles sizes in ascending order are

38 , 46 , 86

4 0
3 years ago
If you flip two fair coins, what is the probability of flipping heads on the first coin and tails on the second coin?
vampirchik [111]

Answer:

I believe 25%

Step-by-step explanation:

There are four equally likely outcomes: HH, HT, TH and TT. Of these, one of these match the criterion given ("the first will come up heads and the second tails”). So the probability is 1/4= 25%.

6 0
3 years ago
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