2 years ago

3z+8=20 Answer 4 10 8 13

Mathematics

1 answer:

yan [13]2 years ago

7 0

Answer: z = 4

Step-by-step explanation:

3z = 20 - 8

3z = 12

z = 12/3

z = 4

Hope this helped!

You might be interested in

The line goes through the ordered pair (10, 6) It has a y-intercept of -2.

VLD [36.1K]

Answer: the x-intercept would be (2,-2)

Step-by-step explanation:

6 0

3 years ago

What type of right triangle would you use this formula for and why? <br><br>c=2a

levacccp [35]

Answer:

30 60 90 triangle

the hypotenuse is twice the length of the shorter leg length.

7 0

3 years ago

Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeee

djverab [1.8K]

Answer:

1/9

Step-by-step explanation:

3^-2

Remember that the negative exponent moves it to the denominator

---------

3^2

-----

4 0

3 years ago

2i(4+5i)(4-5I)/4+i find the quotient and express it in its simplest form

gulaghasi [49]

The answer is B, you should really learn how to calculate these yourself though because they come up a lot.

7 0

3 years ago

Read 2 more answers

What is an equation of the line that passing through the points (-2, -5) and (4, 7) ?

monitta

Answer:

$y=2x-1$

Step-by-step explanation:

Use the slope-intercept formula: $y=mx+b$ where m is slope and b the y-intercept.

$(-2,-5)(4,7)$

Use the slope formula for when you have two points:

$\frac{y(2)-y(1)}{x(2)-x(1)}=\frac{rise}{run}$

Rise over run is the change in the y-axis over the change in the x-axis. Insert values:

$\frac{7-(-5)}{4-(-2)}$

Simplify parentheses (negative+negative=positive)

$\frac{7+5}{4+2}$

Simplify

$\frac{12}{6}=2$

2 is the slope:

$y=2x+b$

Now use one of the points to find the y-intercept by substituting the x and y values into the equation. Solve for b:

(4,7)

$y=2x+b\\7=2(4)+b$

$7=8+b\\7-8=8-8+b\\7-8=b\\-1=b\\b=-1$

The y-intercept is -1. Insert into the equation. Change the + symbol to -:

$y=2x-1$

Done.

6 0

3 years ago