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Phoenix [80]
3 years ago
12

Can someone help me simplifytan^2x + 6 tan x - 3

Mathematics
1 answer:
Triss [41]3 years ago
4 0

Substitution z = tan(x), then you can write:

z^2 + 6z - 3

You might be interested in
4x-7x=13 in a fraction
Naddika [18.5K]
4x-7x= 13
⇒ -3x= 13
⇒ x= 13/(-3)
⇒ x= -13/3

The final answer is x= -13/3~
4 0
3 years ago
Which value of x makes the equation 2/3x-3=11 true?
harkovskaia [24]

Answer:

x = 21

Step-by-step explanation:

To see for what value of x is the equation true, we have to solve x.

\displaystyle \frac{2}{3} x - 3 = 11\\\\Adding \ 3 \ to \ both \ sides\\\\\frac{2x}{3} = 11 + 3\\\\\frac{2x}{3} = 14\\\\Multiply \ 3 \ to \ both \ sides\\\\2x = 14 \times 3\\\\2x = 42 \\\\Divide\ both\ sides\ by\ 2\\\\x = 42/2\\\\x = 21\\\\For \ x = 21\ the \ given \ equation \ is \ true.\\\\\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3><h3>Peace!</h3>
7 0
2 years ago
What is 3.08 x 12.4 ?
lawyer [7]

Answer:

=38.192x

Step-by-step explanation:

I hope this helps you

7 0
3 years ago
Write an equation in slope intercept form that passes through the point (3,9) and has a slope of -5
Anna35 [415]

Answer:

y= -5x +24

Step-by-step explanation:

<u>Slope-intercept form</u>

y= mx +c, where m is the slope and c is the y-intercept.

Given that the slope is -5, m= -5.

Substitute m= -5 into the equation:

y= -5x +c

To find the value of c, substitute a pair of coordinates that the line passes through into the equation:

When x= 3, y= 9,

9= -5(3) +c

9= -15 +c

c= 9 +15

c= 24

Thus, the equation of the line is y= -5x +24.

5 0
2 years ago
Use the quadratic model y = −4x2 − 3x + 4 to predict y if x equals 5.
REY [17]

Answer:

-111

Step-by-step explanation:

substitute 5 in place of each x

    -4(5)^2 - 3(5) + 4

then evaluate or type it into your calculator

    -100 - 15 + 4

7 0
3 years ago
Read 2 more answers
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