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3 years ago

Who know this please I need help asap !!

Mathematics

2 answers:

Whitepunk [10]3 years ago

8 0

Answer:

Step-by-step explanation:

$tan\theta =\frac{12}{5}\\ \\ \theta =tan{-1}\frac{12}{5}\\ \\ \theta =67.38^o\\ \\ \theta \approx 67^o$

lord [1]3 years ago

7 0

The answer should be 65

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This is the last question i got a 100 so far can we get a full 100

yKpoI14uk [10]

Answer:

Step-by-step explanation:

8 0

2 years ago

Find the value of the variable.

Likurg_2 [28]

Cos ø = Base/ Hypotenuse
Cos 30 = y/32
Root 3/2 = y/32
y= 16root3
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2 years ago

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Seventy-five percent of the data falls below what number? 30 12 36 27

padilas [110]

Total number is 40
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$\frac{75}{100} \times 40$
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Therefore the correct answer is 30

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3 years ago

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Find a polynomial of degree 3 with real cofficients and zeros of -3,-1,4 for which f(-2)=24

konstantin123 [22]

$\bf \textit{zeros at } \begin{cases} x = -3\implies &x+3=0\\ x = -1\implies &x+1=0\\ x = 4\implies &x-4=0 \end{cases}\qquad \implies (x+3)(x+1)(x-4)=\stackrel{y}{0} \\\\\\ (x^2+4x+3)(x-4)=0\implies x^3~~\begin{matrix}+ 4x^2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~+3x~~\begin{matrix} -4x^2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~-16x-12=0 \\\\\\ x^3-13x-12=0$

we know that f(-2) = 24, namely when x = -2, y = 24, let's see if that's true

$\bf x^3-13x-12=y\implies \stackrel{x = -2}{(-2)^3-13(-2)-12}=y \\\\\\ -8+26-22=y \implies 6=y$

darn!! no dice.... hmmmm wait a second.... 4 * 6 = 24, if we could just use a common factor of 4 on the function, that common factor times 6 will give us 24, let's check.

$\bf 4(x^3-13x-12)=y\implies \stackrel{x = -2}{4[~~(-2)^3-13(-2)-12~~]}=y \\\\\\ 4[~~-8+26-22~~]=y\implies 4[6]=y\implies 24=y \\\\[-0.35em] ~\dotfill\\\\ ~\hfill 4x^3-52x-48=y~\hfill$

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3 years ago

X - 3y=-12 -9x - y = 24 Solve plzzz

valina [46]

Answer:

y = -9x - 24

x = -27x - 84

Step-by-step explanation:

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3 years ago

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