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Dafna11 [192]
3 years ago
15

Calculate the next three terms of the following sequence.

Mathematics
1 answer:
loris [4]3 years ago
6 0
Didn't I already answer this? It's A.
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A row of plaques covers 252 square feet of space along a wall. If the plaques are 6 feet tall, what length of the wall do they c
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Answer:

yeah boy

Step-by-step explanation:

They cover 252

they cover up the wall

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Find the 20th term from the last term of the AP:3,8,13,..., 253. <br>​
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Answer:

158

Step-by-step explanation:

The sequence is 3, 8, 13, ..., 253.

Going backwards, it's 253, 248, 243, ..., 3.

First term is 253, common difference is -5.

The nth term is:

a = 253 − 5(n − 1)

The 20th term is:

a = 253 − 5(20 − 1)

a = 158

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2x+5y=50<br><br> Solve for x and then solve for y
astra-53 [7]

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5 0
3 years ago
Help two helpless triangles?
Illusion [34]

Answer:

see below

Step-by-step explanation:

Angle ACE = DCE since they are vertical angles

Angle A = Angle E parallel lines cut by a transversal form congruent alternate interior angles

Angle B = Angle D parallel lines cut by a transversal form congruent alternate interior angles

When all three angles are equal, the triangles are similar.

We can use ratios to find DE

DE         CE  

------- = ----------

AB           AC

DE         8

------- = ----------

12           10

Using cross products

10 DE = 8*12

10 DE = 96

Divide by 10

DE = 9.6

3 0
3 years ago
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