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ICE Princess25 [194]
3 years ago
14

If the two lines 2x + y= 0 and y=3 are plotted on a typical xy coordinate grid, at which point will they intersect?

Mathematics
2 answers:
irina1246 [14]3 years ago
5 0
2x + y = 0
2x + 3 = 0
      - 3  - 3
      2x = -3
       2      2
         x = -1¹/₂
(x, y) = (-1¹/₂, 3)
GaryK [48]3 years ago
5 0
We have
equation 1   2x+y=0

equation 2  y=3

substitute the equation 2 in equation 1
2x+[3]=0 \\ 2x=-3 \\ x=- \frac{3}{2}

the solution is the point
(- \frac{3}{2} ,3)

using a graph tool
see the attached figure

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Make the same part of the first one
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Yesterday Annie walked 9/10 mile to her friends house.together to he library which is the best estimate for how far Annie walked
Novay_Z [31]
1. 9/10 + 9/10 =18/10 = 1 8/10 = 1 4/5
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A regular hexagonal prism has a volume of 160 cubic meters. Its base has a perimeter of 30 meters and an area of 64 square meter
valkas [14]
We know that

[volume of a <span>regular hexagonal prism]=[area of the base]*height
height=volume/area of the base
h=160/64-----> 2.5 m

[surface area </span><span>hexagonal prism]=2*[area of the base]+[perimeter of base]*h
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the answer is
203 m²
5 0
3 years ago
Which statement best explains the value of 16 − (−3)?
amm1812

Answer:

The additive inverse of −3 is +3, so 16 − (−3) = 19

negative 6 over 8 minus negative 1 over 8 = negative 5 over 8; therefore, the distance from A to B is absolute value of negative 5 over 8 equals negative 5 over 8 units

Because it is 3 units to the left of 2 on a horizontal number line

Step-by-step explanation:

The answers are the explanation.

Comment on the second question

Note that the second question asks for the distance from -6/8 to -1/8. Ordinarily, the distance from A to B would be computed as B - A. In this set of answer choices, it is computed as |A - B|. In the end, the result is the same.

Personally, I would compute the distance between points on a number line by subtracting the left point from the right point. Here, that would also correspond to B - A.

Comment on choosing 'word' answers

In a set of answers like these, one way to choose answers is simply to eliminate the ones that make a false statement. Often, you are left with only the correct answer choice.

For example, the statement "the additive inverse of -3 is -3" is a false statement, so the first two answer choices can be eliminated. Likewise, the statement 16 -(-3) = 13 is false, so that choice can be eliminated. The one remaining answer is the correct one.

have a good day hope this helped!

8 0
3 years ago
What is the product of (y+3)(y^2- 3y+9)
makvit [3.9K]

Answer:

y^3+27

Step-by-step explanation:

(y+3)(y^2-3y+9)\\

*use box method

3 0
2 years ago
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