A student is evaluating the expression below for n = 3.7

Mathematics

2 answers:

spin [16.1K]3 years ago

8 0

1. substitute 3.7 for n
2. parentheses
3. multiplication
4. addition

iVinArrow [24]3 years ago

3 0

Given expression : 12.3 + 6 (n - 0.5)

Step 1 : substitute n = 3.7

12.3 + 6 (3.7 - 0.5)

Step 2 : Simplify the parenthesis

12.3 + 6 (3.2 )

Step 3 : Do the multiplication and open the parenthesis

12.3 + 19.2

Step 4 : Add the two number

12.3 + 19.2 = 31.5

So the answer of the given expression when n = 3.7 is 31.5

You might be interested in

Find the prime factorization of 120.

artcher [175]

Answer:

(7/8 - 4/5)^2 = 9/

1600

= 0.005625

Step-by-step explanation:

Subtract: 7/

- 4/

= 7 · 5/

8 · 5

- 4 · 8/

5 · 8

= 35/

- 32/

= 35 - 32/

= 3/

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(8, 5) = 40. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 8 × 5 = 40. In the next intermediate step, the fraction result cannot be further simplified by canceling.

In words - seven eighths minus four-fifths = three fortieths.

Exponentiation: the result of step No. 1 ^ 2 = 3/

^ 2 = 32/

402

= 9/

1600

In words - three-fortieths squared = nine one-thousand six-hundredths.

7 0

2 years ago

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Alik [6]

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