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Naddik [55]
3 years ago
6

Can someone answer questions 2 - 7 for me please?

Mathematics
1 answer:
MrRissso [65]3 years ago
8 0
<span>Question No.2
</span>
speed= distance/ time  

1200km/0.006s= 200 000 km/s 

<span>Question 4
</span>
wavelength = wavespeed / frequency 

wavespeed = 16/8 = 2 

Question 5

(400/60s) = 6.6667 waves/ sec (Hz). 
<span>Velocity = 0.008m/sec. </span>
<span>Wavelength = (v/f) = 0.008/6.6667 = 0.0012 metre (1.2mm).
</span>


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A professor had students keep track of their social interactions for a week. The
WINSTONCH [101]

Answer:

7

Step-by-step explanation:

Given the class interval :

Number of Social

Interactions

35-42

43-50

51-58

59-66

67-74

75-82

83-90

91-98

99-106

107-114

The class width = 7

The class width is the range between each class intervals :

42 - 35 = 4

114 - 107 = 7

106 - 99 = 7

8 0
3 years ago
6)
Damm [24]

Answer:

A. 1.25x + 7y \le 110

Step-by-step explanation:

No more than 110 lb total will be grilled. That means that the amount of meat that will be grilled is equal to or less than 110 lb.

total~weight \le 110

The total weight is made up of the weight of the chicken legs plus the weight of the racks of ribs.

1 chicken leg weighs 1.25 lb.

x chicken legs weigh 1.25x.

1 rack of ribs weighs 7 lb.

y racks of ribs weight 7y.

The total weight of the meat is

1.25x + 7y.

That weigh must be less than or equal to 110 lb.

1.25x + 7y \le 110

Answer: A. 1.25x + 7y \le 110

8 0
3 years ago
Read 2 more answers
What is the least common multiple of 16/24 and 36
Musya8 [376]

Answer:

If we're talking about the least common multiple of the three numbers, then its 144

Step-by-step explanation:

I searched it up on Google. Not sure how accurate the information may be though.

7 0
3 years ago
Please help me with these 2 questions, please show work
muminat

Answer:

5x - 4 = 11

1/2x + 15 = 9

Step-by-step explanation:

I dont exactly know how u would show work.

If it says something is less than a number, then it will be at the back of the equation. So skip that part and u will see it says five times a number. The number is unknown therefore it will a variable (i chose x to be the variable). 5 times x is 5x. Minus the 4 would be 5x - 4. Then it says the equation equals 11. So 5x - 4 = 11.

If it says something is more than a number, it can be on either side of the equation using the commutative property of addition. But if we want to consider it being like subtraction, then it also will be in the back of the equation. A half is one over two (1/2). A half of x is 1/2x. Plus the 15 would be 1/2x + 15. It then states that the equation equals 9. So 1/2x + 15 = 9.

3 0
3 years ago
Pls help me guys its a grade
mote1985 [20]

Answer:

4x + 19 = 31.4

4x = 12.4

x = 3.1

Step-by-step explanation:

7 0
3 years ago
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