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erma4kov [3.2K]
3 years ago
10

Find the expression as the cosine of an anglecos pi/4 cos pi/9 - sin pi/4 sin pi/9

Mathematics
1 answer:
Vlad1618 [11]3 years ago
4 0

Answer: cos(13pi/36)

Step-by-step explanation: just did the assignment

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2x18-5+15%5=32<br><br> Insert parentheses to make each equal true
Colt1911 [192]

Answer:

( 2×8) - [ ( 5 + 15 ) ÷ 5] = 32

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Given equation = 2x18-5+15/5=32

First we multiply first two letters,

then ( 2 × 18) = 36

Now, we add 5 and 15 then divide it by 5,

So, ( 5 + 15 ) ÷ 5 = 20 ÷ 5 = 4

Now we subtract 4 from 36,

Then 36 - 4 = 32

Hence the correct parentheses = ( 2×8) - [ ( 5 + 15 ) ÷ 5] = 32

3 0
3 years ago
What transformation has changed the parent function f(x) = log3x to its new appearance shown in the graph below?
Wittaler [7]

Answer : option B

Parent Graph f(x) = log_3(x) is attached below

We analyze each option

A) f(x − 2) --> x - 2 shifts the graph 2 units to the right

B) f(x + 2) --> x + 2 shifts the graph 2 units to the left

C) f(x) − 2 --> f(x) - 2 shifts the graph 2 units down

D) f(x) + 2 --> f(x) + 2 shifts the graph 2 units up

In the graph of f(x)= log_3(x) , the x intercept at x=1

From the graph attached in the question, the x intercept at x=-1

Its means the parent graph is shifted 2 units to the left.

Option B: f(x + 2) --> x + 2 shifts the graph 2 units to the left


7 0
3 years ago
8 and 1/5 - 3 and 4/5
KengaRu [80]

Answer:

4.4

Step-by-step explanation:

I believe the answer is 4.4 or 22/5.

4 0
4 years ago
What is the gcf of 25a^2 - 100
vazorg [7]
<span>25a^2 - 100
= 25(a^2 - 4)

GCF = 25

Hope it helps</span>
5 0
4 years ago
Read 2 more answers
Which of the following is most likely the next step in the series?
Otrada [13]
The correct answer for this is C
5 0
2 years ago
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