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Natalija [7]
3 years ago
13

If arc AB - 70°, how many degrees are in LADB D)

Mathematics
1 answer:
mario62 [17]3 years ago
5 0

Answer:

I have the same problem

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What is the sum of the first 37 terms of the arithmetic sequence?
lidiya [134]

Answer:

The sum of the first 37 terms of the arithmetic sequence is 2997.

Step-by-step explanation:

Arithmetic sequence concepts:

The general rule of an arithmetic sequence is the following:

a_{n+1} = a_{n} + d

In which d is the common diference between each term.

We can expand the general equation to find the nth term from the first, by the following equation:

a_{n} = a_{1} + (n-1)*d

The sum of the first n terms of an arithmetic sequence is given by:

S_{n} = \frac{n(a_{1} + a_{n})}{2}

In this question:

a_{1} = -27, d = -21 - (-27) = -15 - (-21) = ... = 6

We want the sum of the first 37 terms, so we have to find a_{37}

a_{n} = a_{1} + (n-1)*d

a_{37} = a_{1} + (36)*d

a_{37} = -27 + 36*6

a_{37} = 189

Then

S_{37} = \frac{37(-27 + 189)}{2} = 2997

The sum of the first 37 terms of the arithmetic sequence is 2997.

6 0
3 years ago
Whats 1+2+3+4+5 add them together pls
ahrayia [7]

Answer:

15

*ignore this answers have to be a minimum of 20 characters.

6 0
3 years ago
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Input Output Which ordered pair needs to be removed in order for the mapping to represent a function? O (-3, -4) O (-2, -1) O (1
QveST [7]

Answer:

(-2,-1)

Step-by-step explanation:

5 0
2 years ago
If you had $350 and you spent the following
Olin [163]

Answer:

B.) $58

Step-by-step explanation:

350-89-18-27-38-120 = 58

6 0
3 years ago
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If two angles of a triangle have measures of 42° and 20°, what is the measure of the
iris [78.8K]

Answer:

118°

Step-by-step explanation:

the angle measures of a triangle will always add up to 180

so..

42+20=62

180-62=118

4 0
3 years ago
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