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3 years ago

Need help with math plzzzz

Mathematics

1 answer:

alukav5142 [94]3 years ago

4 0

Step-by-step explanation:

2x-5÷3x+4

multiple and dive the angles

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Whats the answer when you divide £680 by 10%

kumpel [21]

The answer would end up being 68.

5 0

3 years ago

F(-4)=8 and f(-1)=4 write the linear equation

kobusy [5.1K]

$f(-4)=8\to(-4,\ 8)\\\\f(-1)=4\to(-1,\ 4)$

The point-slope formula of a line:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute:

$m=\dfrac{4-8}{-1-(-4)}=\dfrac{-4}{3}=-\dfrac{4}{3}\\\\y-8=-\dfrac{4}{3}(x-(-4))\\\\y-8=-\dfrac{4}{3}x-\dfrac{16}{3}\ \ \ \ |+8\\\\y=-\dfrac{4}{3}x-\dfrac{16}{3}+\dfrac{24}{3}\\\\y=-\dfrac{4}{3}x+\dfrac{8}{3}\ \ \ |\cdot3\\\\3y=-4x+8\ \ \ |+4x\\\\4x+3y=8$

The slope-intercept form: $y=-\dfrac{4}{3}x+\dfrac{8}{3}$

The standard form: $4x+3y=8$

7 0

3 years ago

Help me with thisss simplify : 6³/6⁶

Scrat [10]

<h2> $= \frac{ {6}^{3} }{ {6}^{6} }$ </h2><h2> $= {6}^{(3 - 6)}$ </h2><h2> $= {6}^{ - 3}$ </h2><h2> $= \frac{1}{ {6}^{3} }$ </h2><h2> $= \frac{1}{6 \times 6 \times 6}$ </h2><h2> $= \frac{1}{216}$ </h2>

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7 0

3 years ago

Find (f - g)(5) when f(x) = 5x2 + 4 and g(x)=x<br>+3.<br>A) 121<br>B) 131<br>C) -134<br>D) 127<br>

Tema [17]

The answer is A

- you have to substitute 5 for x in both equations

- solve both equations separately

- subtract the functions

8 0

3 years ago

F(x)= 2x+3/x-1, x ≠ 1, dan f^-1 adalah invers dari f

Sindrei [870]

Answer:

The answer are

${f}^{ - 1} (x) = \frac{x + 3}{x - 2}$

${f}^{ - 1} ( - 3) = 0$

Step-by-step explanation:

To find the infers we do that

$f(x) = \frac{2 x + 3}{x - 1 } \\ (x - 1)f(x) = 2x + 3 \\ xf(x) - f(x) = 2x + 3 \\ xf(x) - 2x = f(x) + 3 \\ x(f(x) - 2) = f(x) + 3 \\ x = \frac{f(x) + 3}{f(x) - 2} \\ then \: \\ {f}^{ - 1} (x) = \frac{x + 3}{x - 2} \\ then \\ {f }^{ - 1} ( - 3) = \frac{ - 3 + 3}{ - 3 + 2} = 0$

5 0

3 years ago

Need help with math plzzzz​

Need help with math plzzzz