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Brilliant_brown [7]
3 years ago
12

Circle the tens digit in each number 31, 94, 17,

Mathematics
2 answers:
Aleks04 [339]3 years ago
7 0
The tens digit in 31 is 3 and in 94 it's 4 and in 17 it's 1
Ludmilka [50]3 years ago
3 0
You would circle the 3 in 31, the 9 in 94, and the 1 in 17
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Hunter-Best [27]
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A biologist is researching the population density of antelopes near a watering hole. The biologist counts 32 antelopes within a
Setler [38]

Answer:

=0.3 per km²

Step-by-step explanation:

Population density is the population per uni area.

Area=πr² Where A is area and r is the radius of the circle.

A=3.14×34

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Population density = Population/Area

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The population of antelopes within the given radius is 0.3 per km²

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3 years ago
20 POINTS PLEASE HELP ASP D:
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Hi there!

When two lines intersect, we know that the ones on the opposite sides are equal to one another. Thus, we know that the angle opposite of the one marked with 90 degrees (on the other side of the intersection) is also 90 degrees.

We know that a full turn is 360 degrees. We can see that the two 90 degrees make up part of the turn, and the other pair of angles, both of which are equal to x (as per the reasoning above), make up the rest. We know that the two 90 degrees, added together, is equal to 180 degrees. This means, after subtracting 180 from 360, that 180 degrees are remaining that aren't the 2 90 degrees, and are make up of two angles both measuring x degrees.

As we know that they both measure x, then we know that we say 2x = 180, which gives us x = 90.

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6 0
3 years ago
The black triangle was transformed to make the gray triangle. Write an
sergeinik [125]

Answer:

m<4 = 117 degrees

Step-by-step explanation:

Knowing that angle 1 is 63 degrees, we can look at the other angle on the same side of the line, angle 4.

Angles on one side of a line add to 180 degrees.

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6 0
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Which expression is equivalent to (– 17x3 + 91x – 5) – (9x3 – x2 + 6)? A – 8x3 – x2 + 91x + 1 B – 8x3 + x2 + 91x – 11 C – 26x3 –
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c

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-26x3-x2+91x+1

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