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Anarel [89]
3 years ago
9

Find the sum of 7 E 3i - 15

Mathematics
1 answer:
liberstina [14]3 years ago
5 0

Answer:

-9

Step-by-step explanation:

find the value of i2, which is -9, find the value of i7, which is 6

Then, add them together and multiply by the number of terms in the sequence divided by 2 (6/2=3)

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(2 thousands 7 tens) times 10
kodGreya [7K]

You can multiply the digits or the place value. Either way, you will get the same result.

(2 thousands, 7 tens) × 10 =

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or

... (2 ten-thousands, 7 hundreds)

8 0
3 years ago
I need help with this:
Brut [27]
By the commutative property of addition, the answer you got
  c = -b+5a
is identical to selection ...
  D. c=5a-b



The commutative property tells you the order of addition doesn't matter, so
  (-b)+(5a) = (5a)+(-b) = 5a-b
(This is one of the reasons we study these properties.)
3 0
4 years ago
How to probe secx-tanx(sinx)=1/secx
andre [41]

Answer:

True

Step-by-step explanation:

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3 years ago
On a circular playground, the distance from its center of the playground is 37 feet. What is the approximate circumference of th
Stels [109]

Answer:

232.36

Step-by-step explanation:

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3 0
3 years ago
ann has 5 brand new CD’s, which is 3 less than twice the that bob (x) has. translate the situation into an algebraic equation
Nataliya [291]

Ann = 3 CD's

Ann = 2x-3

5 = 2x-3

x= CD's bob has

5 = 2x-3 is the equation

to solve

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divide by 2

x =4

bob has 4 CD's, ann has 5

6 0
3 years ago
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