2 years ago

What do x square equal

Mathematics

1 answer:

malfutka [58]2 years ago

7 0

X * x

or

x times x

or

x times itself

or

x squared

all means the same thing

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Someone pls help me I need help plsssss

Lyrx [107]

Answer:

3(x+1)=2(x-1)

3x+3=2x-2

3x-2x=-2-3

x=-5.

3 0

2 years ago

Find the value of x.<br> x = 2<br> x = 3<br> x = 33<br> x = 52

yanalaym [24]

Check the picture below.

8 0

2 years ago

Read 2 more answers

How do you invert and multiply to divide 2/3÷4

Ira Lisetskai [31]

2/3 ÷ 4

2/3 ÷ 4/1

We invert the 4/1 to 1/4 and multiply out.

2/3 × 1/4

= 1/3 × 1/2 2 into 4 is 2.

= 1/(3 × 2)

= 1/6

Hope this helps.

4 0

2 years ago

If a cannonball is shot directly upward with a velocity of 160 ft per second, its height above the ground after t seconds is gi

Contact [7]

Step-by-step explanation:

If a cannonball is shot directly upward with a velocity of 160 ft per second. Its height as a function of time is given by :

$h(t)=160t-16t^2$ .......(1)

t is in seconds

(a) Velocity is given by :

$v=\dfrac{dh}{dt}\\\\v=\dfrac{d(160t-16t^2)}{dt}\\\\v=(160-32t)\ ft/s$

Acceleration is given by :

$a=\dfrac{dv}{dt}\\\\a=\dfrac{d(160-32t)}{dt}\\\\a=-32\ ft/s^2$

(b) For maximum height put $\dfrac{dh}{dt}=0$

i.e.

$160-32t=0\\\\t=5\ s$

Put t = 5 s in equation (1). So,

$h(5)=160t-16t^2\\\\h(5)=160(5)-16(5)^2\\\\h(5)=400\ ft$

h(t) = 0

$160t-16t^2=0\\\\t(160-16t)=0\\\\t=0,t=10\ s$

Hence, this is the required solution.

4 0

2 years ago

Determine if the given differential equation is exact (e^2y-y cos xy)dx+(2xe^2 y-cos xy+2y)dy=0

rewona [7]

$\dfrac\partial{\partial y}\left[e^{2y}-y\cos xy\right]=2e^{2y}-\cos xy+xy\sin xy$

$\dfrac\partial{\partial x}\left[2xe^{2y}-y\cos xy+2y\right]=2e^{2y}+y\sin xy$

The partial derivatives are not equal, so the equation is not exact.

7 0

2 years ago