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3 years ago

Which of the following is a cash transaction?

Mathematics

2 answers:

Ilya [14]3 years ago

6 0

I am pretty sure it is B.) Making change

irina1246 [14]3 years ago

4 0

B.) Making Change

Hope this helps!!

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Find the gradient of the line segment between the points (0,2) and (-2,10).

zaharov [31]

The gradient is the slope right?
If yes, then your answer is -4.

m=(y2-y1)/(x2-x1)
m=(10-2)/(-2-0)
m=-4

3 0

3 years ago

Please help fast I’d appreciate it! The slope of a line is 2. The line passes through (-1,K) and (4, 8) find the value of K. Ple

Vladimir [108]

Answer:

-2

Step-by-step explanation:

the slope is 2, aka 2/1, aka y goes up twice when x goes up once

5 0

3 years ago

If a certain machine makes electrical resistors having a mean resistance of 40 ohms and a standard deviation of 2 ohms, what is

V125BC [204]

Answer:

The probability is $P(\= X < 40.4) = 0.84134$

Step-by-step explanation:

From the question we are told that

The mean is $\mu =40 \ \Omega$

The standard deviation is $\sigma = 2 \ \Omega$

The sample size is n = 25

The combined resistance is $\sum x_i = 1010 \ \Omega$

Generally the sample mean is mathematically represented as

$\= x = \frac{\sum x_i }{n}$

=> $\= x = \frac{1010 }{25}$

=> $\= x = 40.4 \ \Omega$

Generally the standard error of the mean is mathematically represented as

$\sigma_{x} = \frac{\sigma }{\sqrt{n} }$

=> $\sigma_{x} = \frac{ 2 }{\sqrt{25} }$

=> $\sigma_{x} = 0.4$

Generally the probability that a random sample of 25 of these resistors will have a combined resistance of less than 1010 ohms is mathematically represented as

$P(\= X < 40.4) = P( \frac{\= X - \mu }{\sigma_{x }} < \frac{ 40.4 - 40 }{0.4} )$

$\frac{\= X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ \= X )$

$P(\= X < 40.4) = P( Z < 1 )$

From the z table the area under the normal curve to the left corresponding to 1 is

$P(\= X < 40.4) = P( Z < 1 ) = 0.84134$

$P(\= X < 40.4) = 0.84134$

3 0

3 years ago

I dont know how to solve these

Ne4ueva [31]

Answer:

137°

Step-by-step explanation:

So, both are equal to each other due to them being the same degree angle.

5x+7=8x-71

subtract 5x on both sides

7=3x-71

add 71 to both sides

77=3x

divide both sides by 3

77/3=x

x equals about 26

insert x into the problems

[5(26)+7]°

this equals 137°

[8(26)-71]°

this equals 137°

7 0

4 years ago

The measure of an angle is 5 times as great as the measure of it's complement. Find the measure of the angle

horrorfan [7]

15 is the mesure of the angle

4 0

3 years ago

Read 2 more answers