4 years ago

Simplify. 4n + 12 + 7n

Mathematics

2 answers:

QveST [7]4 years ago

5 0

11n+12- combined like terms

34kurt4 years ago

5 0

11n + 12 combined like terms.

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What is the solution of x-when x-60=180?

den301095 [7]

To solve for x, you need to isolate/get the variable "x" by itself in the equation:

x - 60 = 180 Add 60 on both sides to get "x" by itself

x - 60 + 60 = 180 + 60

x = 240

PROOF

x - 60 = 180 Substitute/plug in 240 into "x" since x = 240

240 - 60 = 180

180 = 180

7 0

4 years ago

Please answer! I need all work shown please and thank you!! ;)

mafiozo [28]

Check the picture below.

6 0

3 years ago

Solve for y Just ignore this - hhjjjxmznfncnf f cucbc

Gnom [1K]

Answer:

Step-by-step explanation:

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3 0

3 years ago

Plz help with question 10

Sophie [7]

I believe D is correct

8 0

3 years ago

If the sum of squares for a sample containing 51 items equals 200, what is the standard deviation?

Mashcka [7]

The standard deviation is 1.98. Option A is correct.

The standard deviation formula is given as

$\sigma = \sqrt{\frac{SS}{n} }$

where:

SS is the sum of squares = 200
n is the sample size = 51

Substitute the given parameters into the formula to have:

$\sigma = \sqrt{\frac{200}{51} }\\\sigma = \sqrt{3.922}\\\sigma = 1.980$

Hence the standard deviation is 1.98

Learn more on standard deviation here: brainly.com/question/12402189

7 0

2 years ago