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3 years ago

Determine if the following statements are sometimes,never, or always true

1 answer:

6 0

1. always true
2. always true? (not 100% sure)
3. sometimes true
4. i don’t know, sorry
hope this helps a little bit! sorry i couldn’t help with all of them

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What is the slope of the line given by the equation y=4x?

umka2103 [35]

Answer:

the slope is 1 over 4, or up 1 right 4.

Step-by-step explanation:

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3 years ago

What is the greatest common factor of 11 and 4? Submit

Feliz [49]

Answer:

Step-by-step explanation:

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3 years ago

The average college lecture hall (auditorium) can seat 60 students with a standard deviation of 21. Assume that a total of 60 le

fiasKO [112]

Answer:

The standard deviation of the sample mean is $\sigma _ {\= x } = 2.711$

Step-by-step explanation:

From the question we are told that

The mean is $\= x = 60$

The standard deviation is $\sigma = 21$

The sample size is $n = 60$

Generally the standard deviation of the sample mean is mathematically represented as

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

substituting values

$\sigma _ {\= x } = \frac{ 21 }{\sqrt{60} }$

$\sigma _ {\= x } = 2.711$

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3 years ago

Solve the system using any method.<br> x= - 4y+7<br> -2y+3x=9

Arte-miy333 [17]

The solution to the given system of equation is (25/7, 6/7)

<h3>System of equation</h3>

Given the system of equation expressed as:

x= - 4y+7 ........... 1

-2y+3x=9 ...........2

Substitute the equation 1 into 2 into have:

-2y + 3(-4y+7) = 9

-2y + 3(-4y) + 3(7) = 9

-2y - 12y + 21 = 9

Collect the like terms

-14y = 9- 21

-14y = -12

y = 6/7

Substitute y = 6/7 into equation 1;

x =-4y + 7

x = -4(6/7) + 7

x= -24/7 + 7

x = -24+49/7

x = 25/7

Hence the solution to the given system of equation is (25/7, 6/7)

Learn more on system of equation here; brainly.com/question/14323743

#SPJ1

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2 years ago

2y-4x=10 solve for x

Rzqust [24]

Answer:

down below :)

Step-by-step explanation:

the answer is x = - y/2 + 5/2

your welcome hope this helped

3 0

3 years ago