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Start learning 50% faster. Sign in nowThe ionosphere is a part of the upper atmosphere and is ionized by solar radiation. It plays an important part in atmosphericelectricityandformstheinneredge of the magnetosphere. It has practical importance because, among other functions, it influencesradiopropagationtodistantplaceson the Earth.
(23.99)2– (17.99)2+ (1378.88 + 44.88) ÷ ? = 607.998
29.98% of 549.99 = ? - 254.97 + 79.98% of 74.99
(16.16 × 31.98) + 24.15% of 649.99 = ? + 124.34
What approximate value should come in place of question mark (?) in the following equations?
39.9% of 1720 + 80.2% of 630 = 89.9% of 1280 + ?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
21.11 × 4.98 + 22.03 × 4.12 – 31.95 + 95.9 × 3.02 =?
What approximate value should come in the place of (?) in the following questions?
3149.21 –1751.73 - ? * 25.25 = 5221.78 – 4...
A motor boat goes downstream from point A to B ,which is 36 km away from point A, and then returns to A. If actual speed of the boat in still water is 7...
