I need help with this

Mathematics

2 answers:

masha68 [24]2 years ago

8 0

X= 14.7
I believe that’s the answer

Nana76 [90]2 years ago

6 0

Answer:

I don´t know sorry

Step-by-step explanation:

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How do I answer 249/591

kodGreya [7K]

Answer:

Divide

Step-by-step explanation:

249/591

7 0

3 years ago

Rewrite in Polar Form.... 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

F(x)=√x-3 answers A) √x-3≥0 B) x-3≥0 C) √x-3≤0 D) x-3≤0

Zina [86]

Its B bro becauseiys a negative so you would get rid of the symbol then flip the negative

5 0

3 years ago

Read 2 more answers

A cricket team has a 0.25 chance of losing

Westkost [7]

Answer:

a) 0.125