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Studentka2010 [4]
3 years ago
15

Help me please this is 7th grade math

Mathematics
1 answer:
sasho [114]3 years ago
5 0
What do you need help with?
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Tomtit [17]

Answer:

A

Step-by-step explanation:

The lateral surface area is given by pi*r*l, we can use trigonometry to find l. 8*sqrt(3)/l=sin(60), l=16 and r is given by tan(60)=8*sqrt(3)/r, r=8. The lateral surface area is 16*8*pi=128*pi

5 0
3 years ago
9/10 + (−4/5) in simplest form
creativ13 [48]
-4/5 = -8/10
9/10 -8/10 = 1/10

1/10
5 0
3 years ago
In the above figure, the radius of curvature is 10 ft and the height of the segment is 2 ft. What's the length of the chord?
Kay [80]
The answer is 12. I am 1,000,000% positive that it is the correct answer

4 0
3 years ago
If the sum of three consecutive integers is 36, what is the smallest of these integers?
DedPeter [7]
Let the three consecutive equals:
x, x+1, x+2

sum:
x+(x+1)+(x+2) = 36
3x + 3 = 36
x+1 = 36/3
x+1 = 12
x=12-1
x=11
5 0
3 years ago
A family purchased tickets for a concert. They paid a total of $90 for 7 adult tickets and 12 child tickets. The price of a chil
andre [41]
A is aldult tickets
b is child tickets

b = 2/3 a

7a + 12b = 90
7a + 12 x 2/3 a = 90
7a + 8a = 90
15a = 90
a = 6; b = 4
4 0
3 years ago
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