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Kipish [7]
3 years ago
7

1-2x – 1) – (x – 7) =​

Geography
1 answer:
den301095 [7]3 years ago
5 0

Answer:

-3x-7

Explanation:

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True or False. The semi-major axis of an ellipse is half the length of its major axis.
masya89 [10]

Answer:

True

Explanation:

The semi-major axis of an ellipse is half the length of its major axis.

4 0
3 years ago
In which continent have the native people used the llama as much as people elsewhere have used the camel?
riadik2000 [5.3K]
The main continent would be South America. Llamas originated in North America, then migrated south to South America, and inhabited what is now Peru.
7 0
3 years ago
Potash and magnesium are examples of?
Katen [24]
Recommended rates of potash for grazed grass are 60kg/ha and 30kg/ha of K2O for soil index 0 and 1 respectively. For soils with higher soil fertility levels no potash required.

Very large quantities of potash are removed in grass silage which must be replaced to maintain soil fertility and yield potential. The following is guide to typical potash offtakes from multi-cut silage systems.Low soil magnesium levels will affect grass yield as well as mineral balance in the animal. Apply 50-100 kg/ha MgO every three to four years at Mg index 0. Yield response is less certain at index 1 but magnesium application is justified in terms of insurance for grass yield and mineral balance for the animal, to maintain a soil magnesium index of 2.

Where lime is required and Mg levels are 0 and 1, use magnesian limestone as the most cost effective magnesium source. Where pH is satisfactory, specific magnesium fertilisers (see table below) should be used for soil improvement. Use water soluble forms of magnesium where rapid plant uptake is required.
5 0
3 years ago
If angle A has a measurement of 42° and is complementary to angle B, what's the measure of angle B?
vladimir2022 [97]

Answer:

B =48

Explanation:

To solve this problem we need to know that ALWAYS the sum of complementary angles are equeal to 90.

If A is complementary to angle B, we can affirm that:

A+B=90.

Given that A=42, solving for B:

B = 90 - A = 90 - 42 = 48

Then, the measure of angle B is 48.

6 0
3 years ago
Which two processes can harm soil fertility?
Dominik [7]

Answer:

Erosion, compaction, nutrient imbalance, pollution, acidification, water logging, loss of soil biodiversity and increasing salinity have been affecting soil across the globe, reducing its ability to support plant life and so grow crops.

4 0
2 years ago
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