Ask question

Ask question

All categories

3 years ago

6

Evaluate the expression when a=7 and x=-2.

1 answer:

Kisachek [45]3 years ago

6 0

$x-3a$

Plug in the values a=7 and x=-2

$=-2-3(7)$

$=-2-21=-23$

The answer is -23.

Let me know if you need any clarifications, thanks!

You might be interested in

mash [69]

Answer:

1/10

Step-by-step explanation:

Because there are 10 markers and only one is yellow. so you have a one in ten chance to pull a yellow marker.

<em>Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!</em>

8 0

2 years ago

Read 2 more answers

Solve 1/25 = 5^x+4 ( all exponential)

kati45 [8]

Answer:

$x= -6$

Step-by-step explanation:

8 0

3 years ago

If I missied 4 questions on a 14 problem math paper, what grade would I get?

Marizza181 [45]

if you do 14-4 which is equal to 10

6 0

3 years ago

Read 2 more answers

For a sample of n = 36 that has a sample variance of 1,296, what is the estimated standard error for the sample? 6 37 36 6. 9

Liula [17]

The estimated standard error for the sample is 6

Given,

Sample size, n = 36

Sample variance, $s^{2}$ = 1296

Standard deviation, s = √1296

= 36

Standard error, SE = $\frac{s}{\sqrt{n} }$

= $\frac{36}{\sqrt{36} }$

= $\frac{36}{6}$

= 6

Concept

Sample size is the number of participants or observations included in a study. It is denoted by ‘n’

Sample variance is a measure of the degree to which the numbers in a list are spread out. It is denoted by ' $s^{2}$ '

Standard deviation is a measure of how dispersed the data is in relation to the mean. It is denoted by ‘s’

Learn more about standard deviation here:brainly.com/question/13905583

#SPJ4

4 0

1 year ago

pantera1 [17]

I think the best answer choice would be C.

7 0

3 years ago