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Andrews [41]
2 years ago
11

HELP I NEED THIS REALLY FAST WILL GIVE BRANILIEST!!!

Mathematics
2 answers:
krek1111 [17]2 years ago
8 0
The answer is B not A.
n200080 [17]2 years ago
6 0
the answer is A because it shows.
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4. The figure represents a ramp. Find the height of the ramp.
IgorLugansk [536]
Notice that the triangle is a right triangle, because of the right angle. By the Pythagorean Theorem, a^2+b^2=c^2. Then 15^2+b^2=17^2\implies 225+b^2=289\implies b^2=64\implies b=8, d. 8 m
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After the outbreak of a mysterious disease, the average wait time at a hospital increased by 70\%70%70, percent. Before the outb
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Pls help this is due today :)
Sedaia [141]

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Left 7 down 6 Then count two spaces left right up and down and draw a circle

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a theater is designed with 15 seats in the first row, 19 in the second, 23 in the third, and so on. if this seating pattern cont
marusya05 [52]

Answer:

<u>131 seats</u> are in the 30th row.

Step-by-step explanation:

The theater is designed with the first row there are 15 seats, in second row 19 seats and in the third row there are 23 seats.

Now, to find the number of seats in the 30th row.

So, we get the common difference(d) from the arithmetic sequence first:

19-15=4.

Thus, d=4.

So, the first tem a(1) = 15.

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Now, to get the number of seat in the 30th row we put formula:

a(n) = a(1) + d(n-1)

a(30)=15+4(30-1)

a(30)=15+4\times 29

a(30)=15+116

a(30)=131

Therefore, 131 seats are in the 30th row.

4 0
3 years ago
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