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2 years ago

Help meeeeeeeeeeeeeeeeeeeeeeeeee

Mathematics

1 answer:

DochEvi [55]2 years ago

6 0

Answer:

"Store B has the better price because 45% is greater than 25%" is the correct answer

Step-by-step explanation:

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Х<br> 2+4 = 2(x - 1)?<br><br> Can someone help me out

ELEN [110]

Answer:

x=4/3

Step-by-step explanation:

2+4=2(x-1) original

6=2(x-1) combine like terms

6=2x-2 multiply x-1 by 2

8=2x add 2 to both sides

4=x divide both sides by 2

8 0

3 years ago

Read 2 more answers

What is the vertex and zeros of the function f(x)=x2−4x+3

loris [4]

Answer:

The vertex is (2,-9)

Step-by-step explanation:

7 0

3 years ago

In a survey of 400 people randomly selected it was determined that 22 play soccer. What is the probability that a randomly selec

galben [10]

The answer to this problem is 0.055%
And you get that by doing 22/400

7 0

3 years ago

Are the lengths changing in a linear fashion in the listing above? Perry's hot tub

Anit [1.1K]

Answer:

there isnt anything there but sure yes they are

Step-by-step explanation:

4 0

3 years ago

Rewrite in Polar Form....<br> x^(2)+y^(2)-6y-8=0

skad [1K]

$\bf x^2+y^2-6y-8=0\qquad 
\begin{cases}
x^2+y^2=r^2\\\\
y=rsin(\theta)
\end{cases}\implies r^2-6rsin(\theta)=8
\\\\\\
\textit{now, we do some grouping}\implies [r^2-6rsin(\theta)]=8
\\\\\\\
[r^2-6rsin(\theta)+\boxed{?}^2]=8\impliedby 
\begin{array}{llll}
\textit{so we need a value there to make}\\
\textit{a perfect square trinomial}
\end{array}$

$\bf 6rsin(\theta)\iff 2\cdot r\cdot \boxed{3\cdot sin(\theta)}\impliedby \textit{so there}
\\\\\\
\textit{now, bear in mind we're just borrowing from zero, 0}
\\\\
\textit{so if we add, \underline{whatever}, we also have to subtract \underline{whatever}}$

$\bf [r^2-6rsin(\theta)\underline{+[3sin(\theta)]^2}]\quad \underline{-[3sin(\theta)]^2}=8\\\\
\left. \qquad \right.\uparrow \\
\textit{so-called "completing the square"}
\\\\\\\
[r-3sin(\theta)]^2=8+[3sin(\theta)]^2\implies [r-3sin(\theta)]^2=8+9sin^2(\theta)
\\\\\\
r-3sin(\theta)=\sqrt{8+9sin^2(\theta)}\implies r=\sqrt{8+9sin^2(\theta)}+3sin(\theta)$

3 0

3 years ago