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3 years ago

A) Show that sin 3x = 3 sin x - 4 sin³ x

Mathematics

1 answer:

svp [43]3 years ago

3 0

A) linked photo
b) linked photo

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Please help me with question #6!!!

Bumek [7]

Previous balance:

+ $481,47→ 11/30
- $300,00 → 11/02
- $68,99 → 11 / 10
- $45,00 → 11/15
- $72,75 → 11/17
----------------------------
+ $481,47 - $113,26 =
+ $368,21

new balance:

+ $481,47→ 11/30
- $300,00 → 11/02
- $ $\diagup\!\!\!\! 68,\diagup\!\!\!\!99$ → 11 / 10 for -$58,99
- $45,00 → 11/15
- $ $\diagup\!\!\!\! 72,\diagup\!\!\!\!75$ → 11/17 for $ 0
-------------------------------------------------------------------------------------
+ $481,47 - $196,01 =
+$285,46

Answer:
$\boxed{+285,46}$

4 0

3 years ago

At the movie theatre, child admission is $5.90

Alik [6]

Let the number of children be c, and the number of adults be a.
c + a = 170 (total number of tickets)
Then the cost of each is: $5.90/child, $9.60/adult:
5.9c + 9.6a = 1269.40 (total sales)
Solving as 2 simultaneous equations, we first transform the first equation:
a = 170 - c
Substitute into the 2nd equation:
5.9c + 9.6(170 - c) = 1269.40
Solving gives c = 98, and a = 170 - 98 = 72. This means that 72 adult tickets were sold that day.

5 0

4 years ago

Pleaseee helpppp please

LenKa [72]

The answer is g to the question

3 0

3 years ago

Help me with this please

meriva

Answer:

1) E

2) D

3) G

4) I

Step-by-step explanation:

P = 2(l + w)

P = 2(3a + 3 + 8a - 12)

P = 2(11a - 9)

P = 22a - 18

P = 22(3) - 18

P = 66 - 18

P = 48

P = a + b + c

P = 3b + 7 + 7b - 2 + 7b - 2

P = 17b + 3

P = 17(6) + 3

P = 102 + 3

P = 105

6 0

3 years ago

During training, Janice kayaked 4.68 miles on Monday and 5.61 miles on Tuesday. How much further did she kayak on Tuesday?

likoan [24]

C: 5.61 - 4.68= 0.93

8 0

3 years ago