3 years ago

Please answer this question

Mathematics

1 answer:

Vladimir [108]3 years ago

8 0

Answer:

a = 3/2
b = -1/2

Step-by-step explanation:

$\dfrac{\sqrt{5}-1}{\sqrt{5}+1}=\dfrac{(\sqrt{5}-1)(\sqrt{5}-1)}{(\sqrt{5}+1)(\sqrt{5}-1)}\\\\=\dfrac{5-2\sqrt{5}+1}{5-1}=\dfrac{6-2\sqrt{5}}{4}\\\\=\dfrac{3}{2}-\dfrac{1}{2}\sqrt{5}$

Comparing this to the form a+b√5, we see that ...

a = 3/2

b = -1/2

You might be interested in

What is 0.00000354 moles per liter in standard notation?

mihalych1998 [28]

3.54x10 to the 5th is the standard notation for 0.00000354

5 0

2 years ago

Solve: 0 <img src="https://tex.z-dn.net/?f=%5Cleq" id="TexFormula1" title="\leq" alt="\leq" align="absmiddle" class="latex-formu

Salsk061 [2.6K]

$\huge{ \mathrm{ \underline{ Answer }}}࿐$

$6 \sin(x) - 3 \sqrt{2} = 0$

$6 \sin(x) = 3 \sqrt{2}$

$\sin(x) = \dfrac{3 \sqrt{2} }{6}$

$\sin(x) = \dfrac{ \sqrt{2} }{2}$

$\sin(x) = \dfrac{1}{ \sqrt{2} }$

$\large\boxed{x = 45° \: \: or \: \: 135°}$

$\#TeeNForeveR$

6 0

3 years ago

HURRY I GIVE BRAINLIEST AND EXTRA POINTS !!!!

Temka [501]

11/3 is equal to 3 2/3

8 0

3 years ago

The net of a rectangular prism is shown below. What is the total surface area of the prism in square centimeters?

goldfiish [28.3K]

Answer:

B.96

Step-by-step explanation:

7 0

2 years ago

A rectangle's perimeter is equal to 27 plus its width. The length of the rectangle is four times its width. What is the

lara31 [8.8K]

Answer:

P = 3

Step-by-step explanation:

L = 4*w

P = 27 + w

P = 2*L + 2*w = 27 + w

2L = 2*(4w) = 8w

Put that into the perimeter formula (the first one.)

P = 8w + 2w = 27 + w

10w = 27 + w Subtract w from both sides

9w = 27 Divide by 9

w = 27 / 9

w = 3

You should find the Length just so you can check it.

L = 4w

L = 4*3

L = 12

Check

P = 2L + 2w

P = 2*12 + 2*3 = 30

P = 27 + w

P = 27 + 3

P = 30 and everything checks.

8 0

3 years ago