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vaieri [72.5K]
3 years ago
8

SOLVE X SQUARED ADD 5X -14. ALL DIS HOMEWORK IS SOOO ANNOYING EXTRA CREDIT FOR PEOPLE WHO GET ME DE MARKKKSSS!!!!! PLS I DE BEGG

G YOU OOOOOHHHH!!!!!
Mathematics
1 answer:
MrRissso [65]3 years ago
5 0

Answer:

X= (7;-2)

Step-by-step explanation:

X2+5X-14

(X-7)(X+2)

X= 7;-2

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H (t) = -16t^2 + 144
Delicious77 [7]

Answer:

-16 (t+3) (t-3)

Step-by-step explanation:

6 0
3 years ago
Dy/dx of ln(x/x^²+1)
exis [7]

\dfrac{dy}{dx}\ \ln\left(\dfrac{x}{x^2+1}\right)=\dfrac{1}{\frac{x}{x^2+1}}\cdot\dfrac{x'(x^2+1)-x(x^2+1)'}{(x^2+1)^2}\\\\=\dfrac{x^2+1}{x}\cdot\dfrac{1(x^2+1)-x(2x)}{(x^2+1)^2}=\dfrac{1}{x}\cdot\dfrac{x^2+1-2x^2}{x^2+1}=\dfrac{1-x^2}{x^3+x}\\\\Used:\\\\(\ln(x))'=\dfrac{1}{x}\\\\\left[f(g(x))\right]'=f'(g(x))\cdot g'(x)\\\\\left(\dfrac{f(x)}{g(x)}\right)'=\dfrac{f'(x)g(x)-f(x)g'(x)}{[g(x)]^2}

5 0
3 years ago
Question 29 of 40<br> Find f(-2) for f(x) = 5.3*.
blsea [12.9K]

Answer:

A. \frac{5}{9}

Step-by-step explanation:

To find f(-2) in f(x)=5*3^x, plug in -2 into all the x values.

f(-2)=5*3^-2, you can use calculator to calculate 3^-2 which equals 0.1, forever 1's.

f(-2)=5*0.1=0.5  Forever 5's.

f(-2)=0.5 or \frac{5}{9}

Hope this helps!

If not, I am sorry.

4 0
2 years ago
Are the two expressions equivalent 5(3x+8) 8x+8 when x=10
Brums [2.3K]

Answer:no

Step-by-step explanation:

5(3(10)+8)

5(30+8)

5(38)=190

8(10)+8

80+8

88

88≠190 so no

7 0
3 years ago
Read 2 more answers
Which trigonometric function would be used to find the length of this triangle's hypotenuse?
drek231 [11]
You could use sin(25)=12/H
solve for H.
use pythagorean thm to doubke check answer
3 0
3 years ago
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