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Juli2301 [7.4K]
3 years ago
6

Is this an expression? n+6=20 Yes or No

Mathematics
2 answers:
Ainat [17]3 years ago
4 0
Yes it is an expression
Ghella [55]3 years ago
3 0

An expression consists of one or more numbers and variables along with one or more operations. However, it does not have an equals sign.

n + 6 = 20 would be an equation, not an expression.

An equation is a mathematical sentence that has an equal sign.

Therefore, n + 6 = 20 would <u>not</u> be an expression.

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If you write the function as a sequence, what would be the
Verdich [7]

9514 1404 393

Answer:

  3

Step-by-step explanation:

The common difference of an arithmetic sequence is the slope of the equation that describes it. The slope formula is useful in this case:

  m = (y2 -y1)/(x2 -x1)

  m = (219 -213)/(4 -2) = 6/2 = 3

The common difference of the corresponding arithmetic sequence is 3.

6 0
2 years ago
Maria will spin the arrow on the spinner 2 times. What is the probability that the arrow will stop on the same letter twice? 19
gavmur [86]
Suppose the spinner lands on <em>a</em>.  There's a 1/3 chance that it'll land on <em>a</em> the second time.
Suppose the spinner lands on <em>b</em>.  There's a 1/3 chance that it'll land on <em>b</em> the second time.
Suppose the spinner lands on <em>c</em>.  There's a 1/3 chance that it'll land on <em>c</em> the second time.

We've covered all possibilities for the first spin, and they're all equal, so their average is 1/3.

The probability that it'll land on the same letter twice is 33.3%.
5 0
3 years ago
An astronaut is working on a satellite 200 miles above the ground. What is the measure of BD⌢, the portion of Earth that the ast
natulia [17]

Answer:

420 miles.

Step-by-step explanation:

You would have to be infinitely far away from a sphere in order to see exactly 50% of its surface all at the same moment. Using simple geometry, you can prove that an observer that is a distance d away from the surface of a sphere with radius R can only see a percent area A of the sphere's surface as given by the equation:

A = 50%/(1+R/d)

Where A is the area seen,

R is the earth's radius 4000 miles

And D is the distance above the earth 200 miles

50% = 0.5 in fraction

Substituting values we have

A = 0.5(1 + 4000/200)

A = 0.5(1 + 20) = 0.5 x 21

A = 10.5%

10.5% of 4000 miles = 420 miles.

6 0
3 years ago
Solve n x 8 = 24<br> please help me and solve the equation.
zaharov [31]

Answer:

3

Step-by-step explanation:

Set it up as

8n = 24

n = 24/8

n = 3

5 0
3 years ago
Read 2 more answers
Math problem (easy) <br> ………………………………………
yawa3891 [41]

Answer:

7/24

Step-by-step explanation:

Hope this helps

6 0
2 years ago
Read 2 more answers
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