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3 years ago

13

help need to answer asap!!! a basketball team played 64 games. They won 20 more than they played; how many did they win?; how ma

ny did they loose?

1 answer:

melisa1 [442]3 years ago

7 0

20 more than what they played or 20 more than what they lost?

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Find the exact value of sin2 theta given sin theta =5/13, 90°<theta <180°

Zepler [3.9K]

Now, we know that 90°< θ <180°, that simply means the angle θ is in the II quadrant, where sine is positive and cosine is negative.

$\bf sin(\theta )=\cfrac{\stackrel{opposite}{5}}{\stackrel{hypotenuse}{13}}\impliedby \textit{now let's find the \underline{adjacent side}}
\\\\\\
\textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}$

$\bf \pm\sqrt{13^2-5^2}=a\implies \pm\sqrt{144}=a\implies \pm 12 =a \implies \stackrel{II~quadrant}{-12=a}
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therefore \qquad cos(\theta )=\cfrac{\stackrel{adjacent}{-12}}{\stackrel{hypotenuse}{13}}
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sin(2\theta )\implies 2sin(\theta )cos(\theta )\implies 2\left(\frac{5}{13} \right)\left( \frac{-12}{13} \right)\implies -\cfrac{120}{169}$

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3 years ago

In how many distinct ways can the 11 letters in engineering be arranged

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The answer is >>> 4 989 600

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3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B49%7D%20" id="TexFormula1" title=" \sqrt{49} " alt=" \sqrt{49} " align="absmiddle

Zinaida [17]

Root of 49

Solutions are 7 and -7

We know that 7 is the square root of 49.

A negative number multiplied by itself gives positive
So -7 is also a square root of 49

5 0

3 years ago

What is the answer to this i need help please

Contact [7]

Answer:

-(√2) + √3

Step-by-step explanation:

2√3 - (√2 + √3)

2√3 - √2 - √3

2-1√3 - √2

√3 - (√2)

or.

-(√2) + √3

the answer is not in the possible answers

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3 years ago

I will mark you brainliest!!! Identify the type of function.

Ymorist [56]

Answer:

quadratic

Step-by-step explanation:

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3 years ago

Read 2 more answers