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3 years ago

15

[X2+8x+4 Answer using quadratic formula

1 answer:

AfilCa [17]3 years ago

8 0

I hate quadratic formula it’s so hard

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Find the derivative of y=x²+3x

Scorpion4ik [409]

Answer:

$\frac{dy}{dx}$ = 2x + 3

Step-by-step explanation:

Differentiate each term using the power rule

$\frac{d}{dx}$ (a $x^{n}$ ) = na $x^{n-1}$

y = x² + 3x

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

= 2x + 3 $x^{0}$

= 2x + 3

7 0

3 years ago

Brainliest please help! :C

Nikitich [7]

Answer: 21

Step-by-step explanation:

$N-\left(2\cdot \:7\right)=7$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$N-2\cdot \:7=7$

$\mathrm{Multiply\:the\:numbers:}\:2\cdot \:7=14$

$N-14=7$

$\mathrm{Add\:}14\mathrm{\:to\:both\:sides}$

$N-14+14=7+14$

$\mathrm{Simplify}$

$N=21$

8 0

2 years ago

Read 2 more answers

5. Simplify the expression,<br> (-2 - 5i) - (-4+6i)<br> 2 - 11i<br> -2+i<br> -6 + 11i<br> -5i

monitta

$\qquad\qquad\huge\underline{{\sf Answer}}♨$

Let's simplify ~

$\qquad \sf \dashrightarrow \:( - 2 - 5i) - ( - 4 + 6i)$

$\qquad \sf \dashrightarrow \: - 2 - 5i + 4 - 6i)$

$\qquad \sf \dashrightarrow \: - 2 + 4 - 5i- 6i)$

$\qquad \sf \dashrightarrow \:2 - 11i$

Therefore, A is the Correct choice !

7 0

3 years ago

Please answer thisss <3

lawyer [7]

Answer:

i think . it is c

Step-by-step explanation:

5 0

3 years ago

Artyom0805 [142]

Answer:

C: y+7=2/5(x+4)

Step-by-step explanation:

The point-slope form of the equation of a line with slope m through point (h, k) is ...

y -k = m(x -h)

You are given m=2/5 and (h, k) = (-4, -7). Put these numbers into the form and simplify the signs:

y -(-7) = 2/5(x -(-4)) . . . . . numbers put into the form

y +7 = 2/5(x +4) . . . . . . . signs simplified . . . . matches choice C

5 0

3 years ago