All categories

3 years ago

What is -2√20-√125 in simplest radical form

1 answer:

8 0

√20 the prime factors are 2, 2, 5 so
-2 * √4 *√5
-2*2*√5
-4√5 is the first part ,
now for √125, use prime factorization ,
all prime factors that make up 125 is
5, 5, 5 so √125 can be separated to √25√5 and √25 = 5 so the second part is 5√5.
now -4√5 - 5√5 = -9√5.
therefore answer is -9√5

You might be interested in

I need this to be an equation!! The difference between five times a number and four is 16!!

Katen [24]

5x-4=16. I hope this helps :)

8 0

3 years ago

un supermercado ha comprado docientas cinquenta bolsas de naranjas de cinco kilos de trecientos ochenta euros y las pone a la ve

nasty-shy [4]

Answer:

zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Step-by-step explanation:

5 0

2 years ago

In ADEF, the measure of ZF=90°, EF = 2.3 feet, and FD = 2.9 feet. Find the measure

neonofarm [45]

Answer:38.4

Step-by-step explanation:

5 0

3 years ago

What’s the answer....

ICE Princess25 [194]

Answer:

Step-by-step explanation:

If the triangles are similar, then the corresponding sides are in proportion:

$\dfrac{20}{20+8}=\dfrac{3x}{4x+2}$

$\dfrac{20}{28}=\dfrac{3x}{4x+2}$

$\dfrac{20:4}{28:4}=\dfrac{3x}{4x+2}$

$\dfrac{5}{7}=\dfrac{3x}{4x+2}$ <em>cross multiply</em>

$5(4x+2)=(7)(3x)$ <em>use distributive property </em><em>a(b + c) = ab + ac</em>

$(5)(4x)+(5)(2)=21x$

$20x+10=21x$ <em>subtract 20x from both sides</em>

$10=1x\to x=10$

3 0

3 years ago

Find the slope and the y-intercept of the line. y=4x-5

dusya [7]

$\bf \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}~\hspace{6em}\underset{y-intercept}{\stackrel{slope}{y=\stackrel{\downarrow }{4}x\underset{\uparrow }{-5}}}\qquad \qquad \begin{cases} slope\\ \qquad 4\\ y-intercept\\ \qquad (0,-5) \end{cases}$

6 0

3 years ago