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2 years ago

What is the value of z in the equation 3z + 5 = 4z - 2? I NEED THE WORK

Mathematics

1 answer:

Romashka [77]2 years ago

3 0

Answer:

z=7

Step-by-step explanation:

3z+5=4z-2

5=4z-2-3z

5=z-2

5+2=z

7=z

z=7

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In the diagram of circle o, what is the measure of ZABC? O 30° O 40° O 50° O 60

denpristay [2]

Answer:

30°

Step-by-step explanation:

Line AB and BC are tangents to the given circle.

$\angle \: ABC = \frac{1}{2} ( 210 - 150)$

$\angle \: ABC = \frac{1}{2} (60) = 30 \degree$

Alternatively, <ABC and <AOC are supplementary because AB and BC are tangents.

$\angle \: ABC + 150 \degree = 180 \degree$

$\angle \: ABC = 180 \degree - 150 \degree = 30 \degree$

The correct choice is A.

7 0

2 years ago

Read 2 more answers

A group of friends are ordering food. The total amount that they can spend on their food bill is $41, including the delivery cha

tatiyna

Answer:cost of a friends meal in terms of a is 35/a and cost of each friends meal when the nunber if friends is 5 is $7

Step-by-step explanation:

3 0

2 years ago

Solve 5x(x-6)(4x+9)=0

xxTIMURxx [149]

Greetings and Happy Holidays!

Solve for x.
$5x(x-6)(4x+9)=0$ 

Distribute the parenthesis:
 $5x(x-6)(4x+9)=0$

$(5x^2-30x)(4x+9)=0$

$(20x^3-120x^2)+(45x^2-270x)=0$

Combine like terms:
$20x^3-75x^2-270x=0$

Factor out GCF (5x):
$5x(4x^2-15x-54)=0$

Factor the Complex Trinomial:
$5x(4x^2+9x-24x-54)=0$

$5x(x(4x+9)-6(4x-9))=0$

$5x((4x+9)(x-6))=0$

Set Factors to Equal 0:
$5x=0$

$x=0$

or

$4x+9=0$

$4x=-9$

$x=\frac{-9}{4}$

or

$x-6=0$

$x=6$

The Answers Are:
$\boxed{x=0} \\ \boxed{x= \frac{-9}{4}} \\ \boxed{x=6}$

I hope this helped!
-Benjamin

8 0

2 years ago

if there are 13 cookies birthday party is there any way to divide them equally amongst a group of friends so that each has a who

Neporo4naja [7]

Answer:

yes but it depends on how many friends are in the friend group

8 0

2 years ago

What is the answer? x+y=15 -2x+5y=-2

zavuch27 [327]

Multiply the first equation by 2

2x + 2y =30

now we’ll add the second equation to the first equation

2x + 2y =30
-2x+5y= -2

7y=28

divide by 7

y=4

now plug y back into the first equation

x + 4 = 15

subtract 4

x=11

6 0

2 years ago