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3 years ago

Factor perfect square trinomials

Mathematics

1 answer:

asambeis [7]3 years ago

4 0

Divide 2y from all terms
2y(y^2+6y+9)

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What number is between 0 and 1/3

antiseptic1488 [7]

1/6 should be the correct answer

7 0

3 years ago

HELP NOW!!! 20 POINTS AND URGENTLY NEEDED!!!!!!!!!!!!!!

Lunna [17]

So basically here is the answer mate!

2x + 7y = 3-------------------------(substitute x's value here, i.e., x = -4y)

2( -4y ) + 7y = 3

-8y + 7y = 3

-1y = 3

y = -3------------------------( 1 )

Since x = -4y

= -4 ( -3 ) --------------------------( since we found the value of y)

= 12

Here is the answer for x = 12 , y = -3

Mark my anwer as the brainliest please ! :)

4 0

2 years ago

AB 1 CD. Find x.<br> 4x + 50

yKpoI14uk [10]

Answer:

4x +50=90

X=(90-50):4

X=10

8 0

2 years ago

I’ll give brainliest IF ITS AN ACRUAL ANSWER, ALL USELESS ONES WILL BE REPORTED

Llana [10]

Answer:

Step-by-step explanation:

pls mark brainliest

multiply the numerator and denominator by the same number so, that all the fractions have a denominator of 12.

4 0

3 years ago

Read 2 more answers

Please help me with precalculus??<br>linear and angular speed

Anit [1.1K]

13)

there are 2π radians in 1 revolution, and there are 60 seconds in 1 minute, so keeping that in mind, then,

$\bf \cfrac{4\underline{\pi} }{5~\underline{s}}\cdot \cfrac{rev}{2\underline{\pi} }\cdot \cfrac{60~\underline{s}}{min}\implies \cfrac{4\cdot 60~rev}{5\cdot 2~min}\implies \cfrac{240~rev}{10~min}\implies 24\frac{rev}{min}$

14)

$\bf \textit{linear velocity}\\\\
v=rw\quad 
\begin{cases}
r=radius\\
w=angular~speed\\
----------\\
v=32\frac{m}{sec}\\
w=100\frac{rev}{min}
\end{cases}\\\\
-------------------------------\\\\
\textit{let's convert \underline{w} to }\frac{radians}{sec}$

$\bf \cfrac{100~\underline{rev}}{\underline{min}}\cdot \cfrac{2\pi }{\underline{rev}}\cdot \cfrac{\underline{min}}{60~sec}\implies \cfrac{100\cdot 2\pi }{60~sec}\implies \cfrac{10\pi }{3~sec}\implies \cfrac{10\pi }{3}\frac{radians}{sec}\\\\
-------------------------------\\\\
v=rw\implies \cfrac{v}{w}=r\implies \cfrac{\frac{30~m}{sec}}{\frac{10\pi }{3~sec}}\implies r=\cfrac{30~m}{\underline{sec}}\cdot \cfrac{3~\underline{sec}}{10\pi }
\\\\\\
r=\cfrac{90}{10\pi }m$

15)

what is the radians per seconds "w" in revolutions per minute? just another conversion like in 13)

$\bf \cfrac{\underline{\pi} }{3~\underline{sec}}\cdot \cfrac{rev}{2\underline{\pi }}\cdot \cfrac{60~\underline{sec}}{min}\implies \cfrac{60 ~rev}{3\cdot 2 ~min}\implies \cfrac{60 ~rev}{6 ~min}\implies 10\frac{rev}{min}$

4 0

3 years ago