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butalik [34]
3 years ago
13

Help me with problems 39 a-d

Mathematics
2 answers:
BabaBlast [244]3 years ago
8 0
A) -4
d) -3.1
for these questions you have to subtract the two numbers since they have different signs and the biggest sign is the ending sign
Kaylis [27]3 years ago
3 0
Well when you add negative number to a positive number its like subtracting, forget the negative sign is even there and subtract like lets say 1 number was -6.89 and the other one was 3.89 you subtract and if the negative number is more then the positive number you put the negative sign in front so the answer is -3.00 just keep doing that and you should be fine hope I helped :)
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the cost of building an airplane with 200 seats is about 100$ million if the cost in million of dollars c is proportional to the
Korvikt [17]

Answer:

i dont remeber the exact answer but with the millions get rid of the 0s to add easier

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How to factor out expressions
Brut [27]

To factor an expression:

1: find a common factor

2: divide a common factor by a term

3: divide any other terms after putting in parenthesis

4: simplify


Sorry if I just confused you. >///< Ty for reading.

6 0
2 years ago
Find the missing side lengths and it's converse​
Natalka [10]

Answer:

x  ≈ 10.7 ft.

Step-by-step explanation:

Given triangle in the picture is a right triangle.

By applying Pythagoras Theorem in this triangle.

(Hypotenuse)² = (Leg 1)² + (Leg2)²

(14)² = x² + 9²

x² = (14)² - 9²

x=\sqrt{196-81}

x=\sqrt{115}

x = 10.72

x  ≈ 10.7 ft.

8 0
2 years ago
Sonia walks to her aunt's house. She leaves home at 1025. She walks a total of 12km at an average speed of 5km/h. Work out the t
lisabon 2012 [21]

Answer: 1249 hrs

Step-by-step explanation:

Sophia walked for 12 km to get to her aunt's house.

She did this at a speed of 5km/h which means that the time taken was:

Time = Distance / Speed

= 12 / 5

= 2.4 hours

2.4 in hours:

= 0.4 * 60 minutes

= 24 minutes

= 2 hours 24 minutes

If she left at 1025, she would arrive at:

= 1025 + 2 hours 24

= 1249 hrs

3 0
3 years ago
Is the expression completely factored: (5 - x)(6 - 5x)
Naya [18.7K]

Answer:

5x² - 31x + 30

Step-by-step explanation:

(5 - x)(6 - 5x)

= 30 - 25x - 6x + 5x²

= 30 - 31x + 5x²

= 5x² - 31x + 30

7 0
3 years ago
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