Предмет: Математика, автор: elenapetrenko733

Обчислити (-3) +(+11)?

Ответы

Автор ответа: ukkitv79

Ответ:

Пошаговое объяснение:

......................

Автор ответа: Diavolhhhh

Ответ:

Пошаговое объяснение:

(-3)+(+11)=11-3=8

Отметь пожалуйста мой ответ как лучший

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Measuring Snowfall
Despite the many high-tech instruments now available to scientists who study the weather, one measurement remains relatively difficult to make, and that’s calculating how much snow actually falls in any particular place during a snowstorm. This explains why the National Center for Atmospheric Research (NCAR) in the USA is experimenting with new ways of achieving a greater level of accuracy in snowfall figures. As their representative Ethan Guttmann points out, ‘You’d think it was just a matter of going out and sticking a ruler in the snow and measuring how much is on the ground. The problem is, if you move the ruler over just a few centimetres, you may get a different reading.’
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NCAR scientists have also experimented with using Global Positioning Satellites (GPS) to measure snow depth. It may be possible for signals sent from these satellites to measure the distance to both the surface of the snow and to the ground beneath it. Not only would this method be more cost-effective than other methods, but it might also be particularly useful for measuring the snow in remote locations such as inaccessible upland areas and the highest mountain peaks and ranges. Accurate measurement of snowfall in these areas is important as entire regions may depend on spring run-off of melted snow for their water supply.
The scientists also learned that they could improve the results of both manual and high-tech methods of snow measurement by using something known as a snow board. Basically, this is just a flat piece of white-painted wood on which snow can accumulate. Windshields placed around these can also add to the accuracy of measurements.

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a. 'll open
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c. 'm opening
d. open
2) I _____ the tickets on Friday.
a. was buying
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3) I _____ in this village all my life.
a. live
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4) A: "Why are you so dirty?" B: "Because I _____ the basement."
a. clean
b. 've cleaned
c. 've been cleaning
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5) The new sofa isn't ____ the old one.
a. as nice as
b. as nice than
c. as nicer than
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Make sure you have something _____ to say before you stand up and speak (CONSTRUCT).
A new _____ centre is being built outside the town. (INDUSTRY)
She was a very _____ woman (AMBITION).

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