2 years ago

Solve the equation for y y +5=-(x – 3)

Mathematics

2 answers:

goldenfox [79]2 years ago

6 0

Answer:

y=-x-2

Step-by-step explanation:

y+5=-(x-3)

y+5=-x+3

y=-x+3-5

y=-x-2

HACTEHA [7]2 years ago

5 0

Answer:

y= -x-2

Step-by-step explanation:

(Brainly patrol, why did you delete my answer? I was solving it on paper and wrote it down here)

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Answer:

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Find the value of x² - x+1 when x=√3 -1, in the form a+b√3 where a and b are integers

lidiya [134]

Answer:

$6-3\sqrt{3}$

If you compare this to $a+b\sqrt{3}$ , then $a=6$ and $b=-3$ .

Step-by-step explanation:

We are given $x=\sqrt{3}-1$ and we are asked to find the value of $x^2-x+1$ .

So we will need to find $x^2$ .

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Square both sides:

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Expand using identity: $(x-a)^2=x^2-2ax+a^2$ .

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$x^2=3-2\sqrt{3}+1$

$x^2=4-2\sqrt{3}$

Let's go back to the full $x^2-x+1$ .

$x^2-x+1$

$(4-2\sqrt{3})-(\sqrt{3}-1)+1$

$4-2\sqrt{3}-\sqrt{3}+1+1$

$6-3\sqrt{3}$

If you compare this to $a+b\sqrt{3}$ , then $a=6$ and $b=-3$ .

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3 years ago

Maths problem

Fudgin [204]

Answer:

250 x 3 = 750g

750g is your final answer

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Read 2 more answers

A 25-foot tall flagpole casts a 42-foot shadow. What is the angle (to the neasrest tenth of degree) that the sun hits the flagpo

Maurinko [17]

Tan^-1 (tan x) = 42/25
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