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3 years ago

5

-2 (5x - 6) how do I solve this

1 answer:

DiKsa [7]3 years ago

6 0

When you have an algebraic expression including brackets, you always multiply what's on the inside by what is on the outside. This means that you would do -2 × 5x = -10x, and then -2 × -6 = 12, so your answer would be -10x + 12.

I hope this helps!

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Two game controllers had 26 buttons what’s the unit rate

vladimir2022 [97]

Unit rate = total buttons/ total controllers

Unit rate = 26/2 = 13

Unit rate: 13 buttons per controller

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2 years ago

Find an equation in rectangular coordinates for the cylindrical equation r = 2sintheta

frutty [35]

Answer:

$x^2+(y-1)^2=1$

Step-by-step explanation:

The given cylindrical equation is

$r=2\sin \theta$

Multiply both sides by r.

$r^2=2r\sin \theta$ .... (1)

The required formulas are

$x=r\cos \theta,y=r\sin \theta,r^2=x^2+y^2$

Substitute $r\sin \theta =y,r^2=x^2+y^2$ in equation (1).

$x^2+y^2=2y$

$x^2+y^2-2y=0$

Add 1 on both sides.

$x^2+(y^2-2y+1)=1$

$(x-0)^2+(y-1)^2=1^2$ $[\because (a-b)^2=a^2-2ab+b^2]$

It is the equation of a circle centered at (0,1) with radius 1.

Therefore, the equation in rectangular coordinates is $x^2+(y-1)^2=1$ .

3 0

3 years ago

Isaiah is having his house painted. He paid $525 for the required materials, and he will pay $30 an hour for the painters to com

alukav5142 [94]

Answer:

Step-by-step explanation:

x is the amount of hours it will take. Since he pays $30 per hour, your answer would be 30x + 525

7 0

3 years ago

Can someone help me on number 7

MatroZZZ [7]

Equilateral, isosceles, and acute

5 0

3 years ago

Read 2 more answers

15/331<br> please show in dept steps for the division

photoshop1234 [79]

$\frac{15}{331}$ or $0.045317$

Step-by-step Explanation :

As the given fraction is an improper fraction, it is hard to divide properly. Either :

☆ You can write what it is given as per question for the answer.

☆ Else, by dividing, we will get a huge value. In this case, we get it as $0.045317$

8 0

2 years ago