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3 years ago

Anyone that can help me with this please? Will give brainliest

Mathematics

1 answer:

Maksim231197 [3]3 years ago

5 0

Answer:

It's (C) But if you do it like this you get 13/6

Step-by-step explanation:

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Solve the equation using square roots. Write your answer in simplest form.<br> Question in picture

GalinKa [24]

Answer:

The solutions to the quadratic equation involving square roots are:

$x=2\sqrt{7}i+8,\:x=-2\sqrt{7}i+8$

Step-by-step explanation:

Given the equation

$\frac{1}{4}\left(x-8\right)^2+8=1$

subtract 8 from both sides

$\frac{1}{4}\left(x-8\right)^2+8-8=1-8$

$\frac{1}{4}\left(x-8\right)^2=-7$

$\left(x-8\right)^2=-28$

$\mathrm{For\:}\left(g\left(x\right)\right)^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}g\left(x\right)=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

solving

$x-8=\sqrt{-28}$

$x-8=\sqrt{-1}\sqrt{28}$

$x-8=\sqrt{28}i$ ∵ $\sqrt{-1}=i$

$x=2\sqrt{7}i+8$

similarly solving

$x-8=-\sqrt{-28}$

$x-8=-2\sqrt{7}i$

$x=-2\sqrt{7}i+8$

Therefore, the solutions to the quadratic equation involving square roots are:

$x=2\sqrt{7}i+8,\:x=-2\sqrt{7}i+8$

5 0

3 years ago

Can someone please help me i dont know how to do it.

kvasek [131]

The photo isnt popping up

5 0

3 years ago

Brainlist-brainlist-brainlist

irinina [24]

Answer:

triangle

Step-by-step explanation:

The cross section is a triangle.

8 0

3 years ago

Read 2 more answers

How to put the sum 7/10 in

alexdok [17]

That is a fraction, if you want to put it into decimal form, it would be equivalent to 0.7

8 0

4 years ago

Please answer for me domain and range

coldgirl [10]

There’s no equation or picture?

7 0

3 years ago