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Brrunno [24]
3 years ago
7

945 round nearest ten

Mathematics
2 answers:
andrew-mc [135]3 years ago
8 0
I say that the answer is 950
Pavlova-9 [17]3 years ago
7 0
945 rounded to the nearest ten is 950
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Two points in the Cartesian plane are A(2.00 m, −4.00 m) and B(−3.00 m, 3.00 m). Find the distance between them and their polar
Brrunno [24]

The distance between the two points is d=8.6m

The polar coordinate of A is \left(4.47,296.57\right)

The polar coordinate of B is \left(4.24,135\right)

Explanation:

The two points are A(2,-4) and B(-3,3)

The distance between two points is given by,

d=\sqrt{(2+3)^{2}+(-4-3)^{2}}\\d=\sqrt{(5)^{2}+(-7)^{2}}\\d=\sqrt{25+49}\\d=8.6

Thus, the distance between the two points is d=8.6m

The polar coordinates of A can be written as (Distance, tan^{-1} \frac{y}{x} )

Distance = \sqrt{x^{2} +y^{2} }

Substituting A(2,-4), we get,

Distance = \sqrt{2^{2} +(-4)^{2} }=\sqrt{4+16 }=4.47

tan^{-1} \frac{y}{x} =tan^{-1} \frac{-4}{2}=-63.43

To make the angle positive, let us add 360,

\theta=360-63.43=296.57

The polar coordinate of A is \left(4.47,296.57\right)

Similarly, The polar coordinate of B can be written as (Distance, tan^{-1} \frac{y}{x} )

Distance = \sqrt{x^{2} +y^{2} }

Substituting B(-3,3), we get,

Distance = \sqrt{(3)^{2}+(3)^{2}}=4.24

tan^{-1} \frac{y}{x} =tan^{-1} \frac{3}{-3}=-45

To make the angle positive, let us add 360,

\theta=180-45=135^{\circ}

The polar coordinate of B is \left(4.24,135\right)

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3 years ago
3 decagrams = centgrams
notsponge [240]

Answer:

3,000

Step-by-step explanation:

Just multiply every decagram by 1,000

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Answer:

6.58 I could be wrong but that's pretty much it is it all students together in total?

Step-by-step explanation:

just add 1.94+0.97+1.8+1.87=6.58

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3 years ago
Find the perimeter of a rhombus the length of whose diagonals are 10 cm and 24 m.
Svet_ta [14]

check the picture below.


recall that in a rhombus, both diagonals bisect each other, namely cut each other in equal halves and at right-angles, so we end up with 4 right-triangles.


now, the sides in a rhombus are all equal, thus the perimeter is 13+13+13+13.

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What is the range of the relation {(2, 4), (3, 4), (4, 7), (5, 7), (6, 5)}?
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4,7,5 .................................................
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