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3 years ago

I don’t know how to do this:(

Mathematics

1 answer:

Wewaii [24]3 years ago

4 0

Answer:

me niether

Step-by-step explanation:

lol

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What is the image of the point (-8,0) after a rotation of 270° counterclockwise

IceJOKER [234]

Answer:

(0, 8 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 270°

a point (x, y ) → (y, - x ) , thus

(- 8, 0 ) → (0, 8 )

7 0

3 years ago

Read 2 more answers

I need help PLz what is 7/985 I will mark Brainlist to first person that answer.!!!!

bazaltina [42]

Answer:

Jeez, This number is not a whole number. The real answer would be 140.714285714

Step-by-step explanation:

But the rounded answer would be about 141.

3 0

3 years ago

Read 2 more answers

PLEASE HELP ME PLS ITS MATH

Ganezh [65]

Answer:

Step-by-step explanation:

We know that

$h(t)=-16t^2+1296$

The balls hits the ground when h(t)=0, so

$-16t^2 + 1296=0 \\ \\ t^2 - 81=0 \\ \\ t^2 = 81 \\ \\ t=9$

Note I only considered the positive case because time must be positive.

7 0

1 year ago

Solve the system. find x,y, and z please show all steps<br><br> x-y+z=1<br> x+y+3z=-3<br> 2x-y+2z=0

Mariulka [41]

Solving the system we get, x= -1, y= -2 and z= 0

Step-by-step explanation:

Solving the equations to find x, y and z

$x-y+z=1\,\,\,eq(1)\\x+y+3z=-3\,\,\,eq(2)\\2x-y+2z=0\,\,\,eq(3)$

Adding eq(1) and eq(2)

$x-y+z=1\\x+y+3z=-3\\--------\\2x+4z=-2\,\,\,\,eq(4)\\$

Adding eq(2) and eq(3)

$x+y+3z=-3\\2x-y+2z=0\\----------\\3x+5z=-3\,\,\,eq(5)$

Multiplying eq(4) by 3 and eq(5) by 2

$6x+12z=-6\\6x+10z=-6\\-\,\,\,-\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\----------\\2z=0\\z=0$

So, value of z =0

Putting value of z in eq(4)

$2x+4z=-2\\2x+4(0)=-2\\2x=-2\\x=-1$

So, value of x = -1

Now putting value of z=0 and x =-1 in equation 1

$x-y+z=1\\-1-y+0=1\\-y=1+1\\-y=2\\y=-2$

So, value of y = -2

So, solving the system we get, x= -1, y= -2 and z= 0

Keywords: Solve the system

Learn more about Solve the system at:

#learnwithBrainly

7 0

3 years ago

HELP ME ASAP ROCKY STYLES PLEASE BRO. Find the value of x and the length of each side.

Masteriza [31]

Answer:

x= 14 hope that helps you out good luck

6 0

2 years ago