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Greeley [361]
2 years ago
9

Simplify the expression. 9y^2−25/9y^2−30y+25

Mathematics
1 answer:
mezya [45]2 years ago
4 0

Answer:

Step-by-step explanation:

56y^2/9-30y+25

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The perimeter of a rectangle is 64 units. Can the length X of a rectangle be 20 units when it's width y is 11 units
Blababa [14]
Nope. Perimeter = sum of all sides

P = 20 + 11 + 20 + 11 = 62 and not 64

So, it is not possible.
4 0
3 years ago
At a game booth, a student gets a box of candy as the prize for winning a game. The boxes come in four colors: white, red, green
Rainbow [258]
I think the answer is D) 8 over 32 multiplied by 7 over 31
Hopefully that helped! :) 
4 0
3 years ago
A 13 ft ladder is resting on a wall. The angle the ladder makes with the floor is 45 degrees. How high off the ground is the top
PtichkaEL [24]

Answer: 9.19 ft

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.  

Sin α = opposite side / hypotenuse  

Where α is the angle of elevation of the ladder to the ground, the hypotenuse is the longest side of the triangle (in this case is the length of the ladder), and the opposite side (x) is distance between the top of the ladder and the ground.

Replacing with the values given:  

Sin 45 = x/ 13

Solving for x  

sin45 (13) =x  

x= 9.19 ft

Feel free to ask for more if needed or if you did not understand something.  

6 0
3 years ago
The cost of 25 pounds of bird seed is $44.50. What is the cost for one pound of bird seed
Nimfa-mama [501]
Answer=1.78 Explanation:44.50÷25=1.78
7 0
3 years ago
Assume that Santa has to deliver presents to almost 22 million kids an hour on the night before Christmas. What is his delivery
DENIUS [597]

Answer:

It's about 6,111 kids per second.

Step-by-step explanation:

1 hour = 60 minutes

1 minute = 60 seconds

60*60=3600

1 hour = 3600

hourly rate -> 22,000,000 kids/hr

secondly rate -> 22,000,000/3600 ≈ 6,111

secondly rate -> 6,111 kids/second

7 0
3 years ago
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