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yuradex [85]
3 years ago
12

How many numbers are there between 1 and 1000 that dont include the digit 9

Mathematics
1 answer:
labwork [276]3 years ago
8 0
999 I think... let me know if that is correct:)
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Estimate the sum of 23 and 71
Natali [406]
Estimation:

23 --> rounded to 20
71 --> rounded to 70
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3 years ago
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suppose a ladder 20 feet long is placed against a vertical wall 20 feet high . how far would the top of the ladder move down the
dezoksy [38]
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Example:
</span>If the 24 foot ladder is leaned on the house with the bottom 8 feet  from the base  the wall of the house, then it will form a right angled triangle.The base of the triangle will be 8 feet while the 24 foot ladder forms the hypotenuse. We need to find out the height from the base of that wall to the point the ladder touches the wall.Let the hypotenuse be CLet the base be BLet the height be AWe use this formula:   A squared + B squared = C squaredA sq + 8 sq = 24 sqA sq + 64 = 576A sq = 576 - 64A sq = 512A = Square root 512A = 22.6To the nearest 10th this will be 23<span>So the answer is 23 feet.</span>
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2 years ago
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Sindrei [870]
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3 years ago
HEE 1 15. Mary decides to take out a $4,000 student loan this year. If she will pay 10% interest compounded annually, how much w
german
Answer: 5,600

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One angle of a right triangle measures 80 degrees what is the measure of the other acute angle
puteri [66]

90 + 80 + x = 180
x = 10
6 0
3 years ago
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