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4 years ago

) William has a piece of wire

Mathematics

1 answer:

aalyn [17]4 years ago

6 0

Yes he has enough inches of wire

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The temperature of a point $(x,y)$ in the plane is given by the expression $x^2 + y^2 - 4x + 2y$. what is the temperature of the

ollegr [7]

$x^{2} + y^{2}-4x+2y$

can be written as follows:

$x^{2} -4x+ y^{2}+2y$

$(x^{2} -4x+4)-4+ (y^{2}+2y+1)-1$

$(x-2)^{2}+(y+1)^{2} -5$

since $(x-2)^{2}$ and $(y+1)^{2}$ are always positive, except for x=2 and y=-1, when they become 0,

the minimum value of this expression is when x=2, and y=-1, that is -5

Answer: -5

3 0

3 years ago

Please help me please will give brainliest to anyone who is good show your work

const2013 [10]

Answer:

Step-by-step explanation:

$\frac{2 \frac{1}{2} }{\frac{2}{5} } = \frac{2\frac{1}{2} }{2} times 5$

1 1/4 × 5 = 6 1/4

3 0

3 years ago

12 is 4% of what number?

Pepsi [2]

$x-\ number\\\\
4\%x=12\\
0.04x=12\ \ \ \ | divide\ by\ 0.04\\\\
x=300\\\\
12\ is\ 4\%\ of\ 300.$

7 0

3 years ago

Read 2 more answers

HELPPP PLEASEEEEE THANKKKKKSSS

kondor19780726 [428]

The segment to draw is segment UT

Step-by-step explanation:

A line segment is a part of a line that is bounded by two two distinct end points. In this case, segment UT is bounded by endpoints U and T. In the diagram, point R is not a segment but a point of intersection of segments BT and EU.

Learn More

Construction of a line segment: brainly.com/question/9716065

Keywords : proof, statement, reason, segments, reflexive property

#LearnwithBrainly

6 0

3 years ago

(2.01) solve -2(2x + 5) - 3 = -3(x - 1)

steposvetlana [31]

solve -2(2x + 5) - 3 = -3(x - 1)

-4x - 10 -3 = -3x + 3
-4x - 13 = -3x + 3

Add 3x to both sides
-4x - 13 +3x = -3x +3

Simplify
-x - 13 = 3
Add 13 to both sides
-x - 13 + 13 = 3 + 13

Simplify
-x = 16

multiply both sides by (-1)
x = -16

6 0

4 years ago

Read 2 more answers