2 years ago

How many zeros will x^2-10=49 have? options: two, one, not enough information, none

Mathematics

2 answers:

stepan [7]2 years ago

6 0

Answer:

none?

Step-by-step explanation:

kondor19780726 [428]2 years ago

4 0

2, for questions like this you can type the equation into a desmos graphing calculator, it’s online, and it’ll show you the 2 zeros :)

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-(v + 7) -3 = -26 + v

liq [111]

Answer:

v = 8

Step-by-step explanation:

-v -7-3 = -26+v

2v = -10+26

2v = 16

v = 8

4 0

2 years ago

Pls solve urgent will mark branliest

Natalka [10]

$\dfrac{\sqrt 2 + \sqrt 3}{\sqrt 2 - \sqrt 3} + \dfrac{\sqrt 2 - \sqrt 3}{\sqrt 2 + \sqrt 3}\\\\\\=\dfrac{\left( \sqrt 2+\sqrt 3\right)^2 + \left( \sqrt 2-\sqrt 3\right)^2}{\left( \sqrt 2-\sqrt 3\right)\left( \sqrt 2+\sqrt 3\right)}\\\\\\$

$=\dfrac{\left( \sqrt 2 + \sqrt 3+ \sqrt 2-\sqrt 3\right)^2 - 2\left( \sqrt 2+\sqrt 3\right)\left( \sqrt 2-\sqrt 3\right)}{\left(\sqrt 2\right)^2 - \left(\sqrt 3 \right)^2}\\\\\\=\dfrac{\left(2\sqrt 2 \right)^2 -2 (2-3)}{2-3}\\\\\\=\dfrac{8-2(-1)}{-1}\\\\\\=-(8+2)\\\\\\=-10$