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bezimeni [28]
3 years ago
13

3+1 + - + ... ? What is the sum of the first 7 terms of this geometric series: 3+1+ 3

Mathematics
1 answer:
mote1985 [20]3 years ago
8 0

Answer:

15

Step-by-step explanation:

3+1+3+1+3+1+3= 15 this is what it would look like if you write it out. To save time do 3 times 4 to get 12 and then just add three ones to 12 to get 15.

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4 years ago
Find the domain and range of the function:<br> f(t)=sec[((pi)t)/4]
beks73 [17]

The domain and range of the function f(t)=sec[((pi)t)/4] are the following:

<span>Domain: All the real numbers except t = 2 + 4k, where k is an integer. </span>

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I am hoping that these answers have satisfied your queries and it will be able to help you in your endeavors, and if you would like, feel free to ask another question.

3 0
4 years ago
2x+14y=-108 9x+2y= 2 Solve the following system of equations using any method
Orlov [11]
<span>2x+14y=-108
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-61x=-122
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4 0
3 years ago
Solve for a. Please help!
Marizza181 [45]

Answer:

a = 7

Step-by-step explanation:

This is a special trig triangles. Special trig triangles are identified by their angle measures and their sides have a unique relationship. This is a 30 - 60 - 90 triangle which has sides 1 - √3 - 2 or multiples of this. This means all 30 - 60 - 90 triangles have side lengths with the pattern 1 - √3 - 2. Here the triangle has a - 7√√3 - 14. The value of a is 7 since 7*√3 = 7√3 and 2*7 = 14.

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3 years ago
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