2 years ago

WILL GIVE BRAINLIEST

Mathematics

1 answer:

Natasha_Volkova [10]2 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

In any circle the ratio of the arc length to the circumference of the circle is equal to the degree measure of the arc to 360°

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2 tan x<br>______<br>1+tan^2 x

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Step-by-step explanation:

<h2> It's the expanded formula of </h2>

Tan2x

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3 years ago

I really need answer or I’mma flunk uh oh

irga5000 [103]

Answer:

Step-by-step explanation:

All of these question are just a matter of adding like terms

For the first one we have

7u+(-u)+(-6u)

which is equal to

7u-u-6u

Which I'm sure you can see is equal to 0 or 0u

10/2u+2u

10/2u=5u

5u+2u=7u

6u+0u

0u=0

6u+(-4u)

6u-4u

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3 years ago

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A box contains 10 transistors, 3 of which are defective. If 3 are selected at random, find the probability that a. All are def

bixtya [17]

3/10(2/9)(1/8)

3/10(3/9)(3/8)

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3 years ago

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The quantity y varies directly with the square of x and inversely with z. When x is 9 and z is 27, y is 6. What is the constant

ira [324]

$\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \stackrel{\textit{\underline{y} varies directly with the square of \underline{x} and inversely with \underline{z}}}{y=\cfrac{kx^2}{z}}
\\\\\\
\textit{we also know that }
\begin{cases}
x=9\\
z=27\\
y=6
\end{cases}\implies 6=\cfrac{k9^2}{27}
\\\\\\
\cfrac{27\cdot 6}{9^2}=k\implies 2=k$

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3 years ago

Solve the equation.<br> 6 - x - x = 18

vova2212 [387]

X = -6
6 - -6 - -6 = 18

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2 years ago

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