All categories

3 years ago

What is equalivent to 5=4z+13

Mathematics

1 answer:

GalinKa [24]3 years ago

7 0

Answer:

$z = - 2$

Step-by-step explanation:

$5 = 4z + 13 \\ 5 - 13 = 4z \\ - 8 = 4z \\ \frac{ - 8}{4} = \frac{4z}{4} \\ z = - 2$

You might be interested in

the wind on any random day in bryan is normally distributed with a standard deviation of 5.1 mph. a sample of 16 random days in

Karolina [17]

The 98% confidence interval estimate of the population mean is

15.823 < μ < 22.177

In the given situation the wind on a random day in Bryan is normally distributed with the following values;

Standard Deviation = ( δ ) = 5.1 mph

A random day of 16 is taken into account for the consideration of Bryan's average value of 19mph.

n = 16

By taking the confidence level of T - Factor, we get the;

At a 98% confidence level, the t is,

tα /2,df = t₀.₀₄,₂₄ = 2.492 ( df = hours in a day)

Margin of error = E = tα/2,df * (δ /√n)

= 2.492 * (5.1 / √16)

= 3.177

The 98% confidence interval estimate of the population mean is,

x - E < μ < x + E

19 - 3.177 < μ < 19 + 3.177

15.823 < μ < 22.177

The 98% confidence interval estimate of the population mean is

15.823 < μ < 22.177

To learn more about Standard Deviation click here:

brainly.com/question/13905583

#SPJ4

7 0

2 years ago

2) In order to receive a passing grade in your math class, you must attain an average of at least 65. If your scores on 5 exams

Xelga [282]

Answer:

Step-by-step explanation:

to get the average you add all five together and divide by the number of scores, which is five

7 0

3 years ago

Round 1,129.872 to 2 decimal places

anygoal [31]

Very easy, 1,129.87! I hope I understood correctly.

6 0

3 years ago

A line has y intercept -6 and a x-intercept - 12. what is the equation of the line

koban [17]

Answer:

$\boxed{y = -\dfrac{1}{2}x-6}}$

Step-by-step explanation:

The equation for a straight line is

y = mx + b

where m is the slope of the line and b is the y-intercept.

The line passes through the points (-12, 0) and (0, 6)

(a) Calculate the slope of the line

$\begin{array}{rcl}m & =&\dfrac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\ & = &\dfrac{6 - 0 }{0 - (-12)}\\\\& = &\dfrac{6}{-12}\\\\& = & -\dfrac{1}{2}\\\end{array}$

(b) Write the equation

The y-intercept is at x = -6.

$\text{The equation for the line is $\boxed{\mathbf{y = -\dfrac{1}{2}x-6}}$}$

The diagram shows the graph of the line passing through the two intercepts.

5 0

3 years ago

Can someone plz help me with this math problem 24/?=3

evablogger [386]

Answer:

Step-by-step explanation:

the answer is 8 because if you hv the equation 24/x equals 3 multiply both sides by x and u get 24=3x and then divide both sides by 3 and u get 8

6 0

4 years ago