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Delvig [45]
3 years ago
9

Math/Physics Problem (I'd be glad if you solved one of them).

Mathematics
1 answer:
Whitepunk [10]3 years ago
4 0

Answer:

19.2

76.8

Step-by-step explanation:

density × volume = mass

mass = 62.4 × (pi × (40/2)² × h)

mass = 78,374.4h

WD = m×9.8×h = 9.8mh

WD = 768,069.12h²

At h = 5

WD = 768,069.12×5²

= 19,201,728 ft-lb

= 19.2 million ft-lb

At h = 10

WD = 76,806,9.12 × 10²

WD = 76,806,912 ft-lb

= 76.8 million ft-lb

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107=(9X-115) +(4x+27)​
Cloud [144]

Answer: x=15

Step-by-step explanation:

Equation: 107=(9x-115)+(4x+27)

Step 1: 9x+4x-115+27=107

Step 2: 13x-115+27=107

Step 3: 13x-88=107

Step 4: 13x-88+88=107+88

Step 5: 13x=195

Step 6: 13x/13=195/13

x=15

6 0
2 years ago
Shea is making a lot of plates of cookies for his friends. He makes a total of 18,698 cookies and spilts it into 297 equal plate
slavikrds [6]

Answer:

Shea's coworkers received .89 of a cookie each.

Step-by-step explanation:

18,698/297 = 62.9 rounded to 63

63/71 = .887 rounded to .89

.89 cookies

8 0
3 years ago
Select the statement that correctly describes the expression below
Kitty [74]

Answer:

B

Step-by-step explanation:

The equation is (2x+5)^2.

It can't be A because 2 is the multiplier for only x.

It can't be C because the square is outside of the equation.

It can't be D because again, the square is outside of the equation.

So the only thing left is B.

Hope this helped!


7 0
3 years ago
Maggie owes $500 and will make 4 payments. The first payment is 10% of the original amount, the second payment is 15% of the ori
Likurg_2 [28]

Answer:

last payment is 45% and is $225

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP!
34kurt
It's both. Look at the gradients between one point then the one after it. It stays constant from one to the next. (Gradient is 2 by the way: (5-3)/(2-1)) 
3 0
3 years ago
Read 2 more answers
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