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2 years ago

Which statements are true? Check all that apply.

Mathematics

2 answers:

aksik [14]2 years ago

7 0

Answer:

F, A, and D

Step-by-step explanation:

dimulka [17.4K]2 years ago

7 0

Answer:

the other guy is lying go to some else

Step-by-step explanation:

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En una pizzería quieren crear un plato en el que, una vez troceada la pizza, contenga cada trozo por separado. Para realizarlo,

svetoff [14.1K]

Answer:

I am sorry I want points

Step-by-step explanation:

thanks for your help

4 0

2 years ago

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.

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

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

3 0

3 years ago

-7(-9) need help again

sdas [7]

Answer:

Step-by-step explanation:

-7 * -9 = 63

negative times negative is always positive:)

8 0

2 years ago

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Two balls are drawn in succession out of a box containing

victus00 [196]

There are a total of 8 balls

The probability of drawing a white ball is 4/8 on the first draw.
If you replace the ball then the probability will still be 4/8 for a white ball, since these events are independent of each other you multiply 4/8 x 4/8 = 16/64 or 1/4 then the probability of drawing at least 1 red ball with replacement is 1 - 1/4 = 3/4

Now without replacement:
the probability of drawing a white ball is 4/8 since you don't replace the ball then the probability of drawing a white ball the second time is 3/7 again multiply these two probabilities: 4/8 x 3/7 = 12/56 the the probability of drawing at least 1 red ball is 1- 12/56 = 44/56 or 11/14

4 0

2 years ago

Find the missing angle measurement in each set of supplementary angles.

serious [3.7K]

Answer:

126°

Step-by-step explanation:

180-54 = 126

3 0

2 years ago

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