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2 years ago

Help ME plaese :D ::D TOOOOT TOOOT

Mathematics

1 answer:

rodikova [14]2 years ago

7 0

Answer:

you have to find the area i hope i helped

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The sum of 4 and the product of 5 and x is equal to 5 less than the product of 2 and x. What is the value of x?

Alexxandr [17]

Answer:

b. -3

Step-by-step explanation:

i hope this helps :)

7 0

3 years ago

The final velocity of an object moving in one dimension is given by the formula v = x + at, where u is the

yKpoI14uk [10]

Answer:

a = (v – u)/t

Step-by-step explanation:

We know,

v = u+ at

v-u=at

(v-u) /t=a

4 0

2 years ago

Read 2 more answers

find the coordinates of the point P on the parabola y=1-x^2 with domain 0≤x≤1 that minimize the area of the triangle enclosed by

coldgirl [10]

Let point P be with coordinates $(x_0,y_0).$ Find the equation of the tangent line.

1. If $y=1-x^2,$ then $y'=-2x.$

2. The equation of the tangent line at point P is

$y-y_0=-2x_0(x-x_0).$

Find x-intercept and y-intercept of this line:

when x=0, then $y=y_0+2x_0^2;$
when y=0, then $x=\dfrac{y_0}{2x_0}+x_0=\dfrac{y_0+2x_0^2}{2x_0}.$

The area of the triangle enclosed by the tangent line at P, the x-axis, and y-axis is

$A=\dfrac{1}{2}\cdot (2x_0^2+y_0)\cdot \left(\dfrac{y_0+2x_0^2}{2x_0}\right)=\dfrac{(y_0+2x_0^2)^2}{4x_0}.$

Since point P is on the parabola, then $y_0=1-x_0^2$ and

$A=\dfrac{(1-x_0^2+2x_0^2)^2}{4x_0}=\dfrac{(1+x_0^2)^2}{4x_0}.$

Find the derivative A':

$A'=\dfrac{2(1+x_0^2)\cdot 2x_0\cdot 4x_0-4(1+x_0^2)^2}{16x_0^2}=\dfrac{12x_0^4+8x_0^2-4}{16x_0^2}.$

Equate this derivative to 0, then

$12x_0^4+8x_0^2-4=0,\\ \\3x_0^4+2x_0^2-1=0,\\ \\D=2^2-4\cdot 3\cdot (-1)=16,\ \sqrt{D}=4,\\ \\x_0^2_{1,2}=\dfrac{-2\pm4}{6}=-1,\dfrac{1}{3},\\ \\x_0^2=\dfrac{1}{3}\Rightarrow x_0_{1,2}=\pm\dfrac{1}{\sqrt{3}}.$

And

$y_0=1-\left(\pm\dfrac{1}{\sqrt{3}}\right)^2=\dfrac{2}{3}.$

Answer: two points: $P_1\left(-\dfrac{1}{\sqrt{3}},\dfrac{2}{3}\right), P_2\left(\dfrac{1}{\sqrt{3}},\dfrac{2}{3}\right).$

6 0

3 years ago

Help me please!!!!!!!!!!!!!!!!!!!!!!!! Will give 5 star and brainliest

Agata [3.3K]

Answer:

B. $3927.54

Step-by-step explanation:

just took the test

7 0

3 years ago

P= 5,258.92<br> R= 0.00325<br> T= 48<br> What is I=Prt

tamaranim1 [39]

My answer is p = 5,258.92
I hope this helps

4 0

2 years ago