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3 years ago

7

Two sides of a triangle measure 25 cm and

1 answer:

julia-pushkina [17]3 years ago

6 0

First one I believe

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ohaa [14]

Answer:

$(2,2)~ \text{and}~ (-2,-2)$

Step by step explanation:

$x^2 +y^2 =8~~~~~~...(i)\\\\x-y=0~~~~~~~~~...(ii)\\\\\text{From (ii):}\\\\x-y = 0 \implies x = y\\\\\text{Substitute x = y in eq (i):}\\\\~~~~~~y^2 +y^2 =8\\\\\implies 2y^2 = 8\\ \\\implies y^2 = \dfrac 82\\\\\implies y^2 = 4\\\\\implies y = \pm\sqrt 4\\\\\implies y = \pm 2\\\\\text{Substitute y = x in equation (i):}\\ \\~~~~~~x^2 +x^2 = 8\\ \\\implies 2x^2 = 8\\\\\implies x^2 = \dfrac 82\\\\\implies x^2 = 4\\\\\implies x = \pm\sqrt 4\\\\\implies x = \pm2\\\\$

$\text{Hence,}~ (x,y) = (\pm2, \pm 2)$

3 0

2 years ago

6 of 10 equal pieces is the same as 60 of 100 equal pieces and ___ of 5 equal pieces?

gizmo_the_mogwai [7]

3 of 5 because you can halve each number for example 6 can be halved to make 3 and 10 can be halved to make 5

4 0

3 years ago

Find the vertex and focus of the<br> parabola.<br> y2 – 4y + 12x – 8 = 0

IceJOKER [234]

Answer:

1,2

-2 2

Step-by-step explanation:

6 0

3 years ago

If 4 candies cost 25 cents, how much does it cost t buy 20 candies?

anastassius [24]

Answer:

5.00

Step-by-step explanation:

answer

3 0

3 years ago

Read 2 more answers

Which of the following are interior angles in the figure below?

KATRIN_1 [288]

Answer:

(A), 21, 22,and 26

Step-by-step explanation:

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7 0

3 years ago