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andrew11 [14]
4 years ago
5

Help me with this please.

Mathematics
1 answer:
SSSSS [86.1K]4 years ago
6 0
5- 12 centimeters is equal to 0.12 m:
1.80 + 0.12 = 1.92
the last one is true

6-
20 \times 42 = 840
the second one is true
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Why do some numerical expressions contain parentheses
Elden [556K]

The most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.

<h3>What are parentheses?</h3>

In mathematics, parenthesis is used to arrange numbers in the sequence of operations, clarify numbers, and denote multiplication.

Suppose you have an expression as:-

E = { ( 5-2 )8} 6

In this case, you would calculate 5 minus 2 first (parentheses), then multiply by 8 (brackets), then complete the part inside the curly braces, and finally multiply by 6.

Therefore the most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.

To know more about parentheses follow

brainly.com/question/1778745

#SPJ1

6 0
2 years ago
Solve for x<br> Arctan(2x) = -1<br> Thanks!
Leya [2.2K]
<span>arctan(2x) = -1 radian
</span>⇒ 2x = tan(-1)
⇒ 2x = -1.5574
⇒ x = -1.5574/2 
⇒ x = - 0.7787<span>

</span>
3 0
3 years ago
Assume that Visa charges Francesca 1.6% per month on her unpaid balance. Find the interest owed to Visa when her unpaid balance
Alex Ar [27]
Find the percent (1.6) of the unpaid balance (1250)

1250 x .016 = 20

Add the answer (20) to the unpaid balance (1250)

Answer is $1270
6 0
3 years ago
The box office sold 360 tickets to a concert at a college. The total receipts were $4,170. General admission tickets cost $15, a
balandron [24]

Answer:

15g + 10s= 4170

g + s = 360

15g + 10s = 4170

-10g - 10s = -3600

5g = 570

g = 114 general tickets

114 + s= 360

s = 246 student tickets

Step-by-step explanation:

6 0
3 years ago
Please help and answer
Anni [7]

Answer:

A

Step-by-step explanation:

8 0
4 years ago
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