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lesya [120]
3 years ago
10

Which statement could be proved false using a counterexample?

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
4 0
All acute angles are 30 degrees.
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The ratio of the measures of the acute angles of a right triangle is $8:1$. In degrees, what is the measure of the largest angle
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Answer:

The angles in the triangle and 10, 80 and 90

Step-by-step explanation:

The two angles that are left in a right triangle add to 90 degrees

8:1 means that there total is 9

8x+1x = 9x

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Divide by 9

9x/9 = 90/9

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The angles in the triangle and 10, 80 and 90

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2 years ago
PLEASE HELP FAST!! WILL MARK AS BRAINLIEST IF GIVEN GOID ANSWER....​
lyudmila [28]

Answer:

x = 36

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Step-by-step explanation:

By geometric mean property:

{12}^{2}  = 4 \times x \\  \\ 144 = 4 \times x \\  \\ x =  \frac{144}{4}  \\  \\ x = 36 \\  \\

By Pythagoras Theorem:

{y}^{2}  =  {12}^{2}  +  {x}^{2} \\  \\  {y}^{2}  =  {12}^{2}  +  {36}^{2}  \\  \\  {y}^{2}  = 144 + 1296 \\  \\  {y}^{2}  = 1440 \\  \\ y =  \sqrt{1440}  \\  \\  y = 37.95

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How do u round 14,494 to the nearest thousand
Reil [10]
Look at the digit one number place to the right of the thousands place, the hundreds. In this case it is another 4. Since it is less than 5, the thousands place will stay the same. If it were 5 or greater, the thousands place would go up by one number. 14,494 rounded to the nearest thousand is 14,000
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<span>$408.04 is the answers'
hope it helped!</span>
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