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eduard
3 years ago
12

Please help. +10 Cant figure this one out.

Mathematics
1 answer:
ipn [44]3 years ago
4 0
The correct answer is the last option: 5,12,13
 
 Explanation:
 
 1. The hypotenuse of the triangle is the larger side. Keeping this on mind, you must apply the Phytagorean Theoream, as below:ç
 
 a²=b²+c²
 
 "a" is the hyptenuse and "b" and "c" are the legs of the right triangle.
 
 2. Then, you have:
 
 a=13
 b=12
 c=5
 
 3. If you apply the formula above to calculate the hypotenuse and the result is 13, then those are the lengths of sides of the right triangle. Therefore:
<span> 
 a²=b²+c²
</span> a=√<span>b²+c²
</span> a=√(12)²+(5)²
 a=√144+25
<span> a=13</span>
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Find the equation of the line through M parallel to 3x+y=18
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Answer:

3x+y=18

3xy=18

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5 0
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Read 2 more answers
What's the answer to: divide £48 in the ratio 7:5 (please show your working, much appreciated)
Brums [2.3K]
I can see you come from outside the USA. No insults intended!!
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Anyways, we have to put one side of the ratio and match it to 48. 
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Or even better...
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MAKE!!
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PROPORTION!!
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So... Let's say 7 is proportional to 48... so 7/5 = 48/x, where x is the number equivalent to ratio of 5.
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4 0
3 years ago
Sam says 90 ÷ (–9) = 10. Is he correct? Use the drop–down menus to explain your answer. Sam correct. Sam gave an example of a in
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8 0
3 years ago
What are the solutions?<br>8x^2-12x-23=-5​
erastova [34]

Answer:

x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

Step-by-step explanation:

Solve for x over the real numbers:

8 x^2 - 12 x - 23 = -5

Divide both sides by 8:

x^2 - (3 x)/2 - 23/8 = -5/8

Add 23/8 to both sides:

x^2 - (3 x)/2 = 9/4

Add 9/16 to both sides:

x^2 - (3 x)/2 + 9/16 = 45/16

Write the left hand side as a square:

(x - 3/4)^2 = 45/16

Take the square root of both sides:

x - 3/4 = (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

x = 3/4 + (3 sqrt(5))/4 or x - 3/4 = -(3 sqrt(5))/4

Add 3/4 to both sides:

Answer:  x = 3/4 + (3 sqrt(5))/4 or x = 3/4 - (3 sqrt(5))/4

4 0
3 years ago
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