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Volgvan
3 years ago
5

Add :-a+2b-3c, -3a+b+2cand 2a -3b+c​

Mathematics
1 answer:
fgiga [73]3 years ago
8 0

Answer:

a + 2b -3 c +  - 3a + b + 2c + 2a - 3b + c \\  = a - 3a + 2a + 2b + b - 3b - 3c + 2c + c \\ 0a + 0b + 0c \\ thank \: you

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The cost of 3 slices of pizza is $4.89. What is the cost of each slice of pizza? $1.63 $1.89 $2.45 $2.88
castortr0y [4]

1.63

4.89 divided by 3 = 1.63

3 0
2 years ago
Read 2 more answers
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Marizza181 [45]

Answer:

50-2.5t=w. no, the water will all have drained by then.

Step-by-step explanation:

2.5 per min so

min=t

therefore 2.5t

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_____________________________________-

part 2,

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7 0
3 years ago
A person can see the top of a building at an angle of 65°. The person is standing 50 ft away from
zhannawk [14.2K]

9514 1404 393

Answer:

  (b)  112.2 ft

Step-by-step explanation:

The relevant trig relation is ...

  Tan = Opposite/Adjacent

For the given geometry, this becomes ...

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Then we have ...

  (height above eye level) = (50 ft)tan(65°) = 107.2 ft

Adding the height of eye level will give us the height of the building.

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6 0
2 years ago
400 &gt;
In-s [12.5K]

For this case we have by definition of trigonometric relations of rectangular triangles that, the sine of an angle is given by the opposite leg to the angle on the hypotenuse of the triangle. Then according to the figure we have:

Sin (40) = \frac {CA} {7}

We cleared CA:

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Answer:

Option A

7 0
3 years ago
How to divide 219 by 3?
Ksju [112]
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7 0
2 years ago
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