3 years ago

What is the value of z in the equation 5(2z + 4) =0

Mathematics

2 answers:

Komok [63]3 years ago

6 0

Answer:

-2

Step-by-step explanation:

5(2z + 4) = 0

Divide both sides by 5.

2z + 4 = 0

Subtract 4 from both sides.

2z = -4

Divide both sides by 2.

z = -2

Mazyrski [523]3 years ago

3 0

Answer:

Z=-2

Step-by-step explanation:

5(2z+4)=0

2z+4=0/5=0

2z=0-4=-4

z=-4/2=-2

z=-2

You might be interested in

Mark wants to eat one last cookie from the cookie jar in the jar they are fire truck which of cookies six peanut butter cookies

Kisachek [45]

Answer: about 66.6% that he will not pick a PB one

Step-by-step explanation: Put both of them together and you get 15. 15 divede by 3 is 5. Two 5's is 10, which is about nine, so it would be 2/3 chance of getting an oatmeal cookie, which is the opposite of getting a pb one, 2/3 in a percentage is 66.6%

8 0

3 years ago

Read 2 more answers

Solve the following quadratic by<br> completing the square.<br> y = x2 + 10x + 10

IgorC [24]

Answer:

Step-by-step explanation:

$y = x^2+10x+10\\\\y=x^2+10x+25-25+10\\\\y=(x+5)^2-15\\\\y=0\quad\iff\quad (x+5)^2-15=0\\\\(x+5)^2=15\\\\x+5=\pm\sqrt{15}\\\\x=-5-\sqrt{15}\quad or\quad x= -5+\sqrt{15}$