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____ [38]
4 years ago
9

Will mark brainliest. Find cos(a-(π/4)), if cos(a)= -(1/3)

Mathematics
1 answer:
grigory [225]4 years ago
6 0

Answer:

Step-by-step explanation:

cos(\frac{-1}{3}-\frac{\pi }{4})

cos(\frac{-4}{12}-\frac{3\pi }{12})

cos(\frac{-13.42}{12})  = 0.44 <- rounded to the nearest hundredth

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Lily built an orange shelf in a brown shelf to hang in her room. The orange shelf is 5 feet 6 inches long. The brown shelf is tw
Snowcat [4.5K]

Answer:

The length of the brown shelf is 11ft

Step-by-step explanation:

In this question, we are asked to calculate the length of a brown shelf, given that the length of the orange shelf is a particular length.

Now as we are told from the question, the length of the brown shelf is twice that of the yellow shelf. What we simply need to do is to multiply the length of the orange shelf by 2 to get the length of the brown shelf.

The length of the orange shelf is 5ft 6 inches, multiplying this by 2 will yield a length of 10ft 12 inches

Now, since 1ft = 12 inches, this means the length of the brown shelf would be 11ft in total

6 0
4 years ago
Please help me!! Thank you:)
Aliun [14]

Answer:

it should be C 444ft^2

Step-by-step explanation:

20*24=480

6*6=36

480-36=444

5 0
3 years ago
What is the greatest common factor GCF of 45 and 81?
astraxan [27]

Answer:

<h3>GCF = 9</h3>

for the values <u>45, 81</u>

  • Solution by <u>Factorization:</u>

The factors of 45 are: 1, 3, 5, 9, 15, 45

The factors of 81 are: 1, 3, 9, 27, 81

Then the greatest common factor is <u>9.</u>

8 0
3 years ago
Read 2 more answers
URGENT!!!
Mrac [35]

Answer:

You can do this without the calculator

115 grams

after 1 half-life = 115 / 2 = 57.5 grams

after 2 half-lives = 28.75 grams

after 3 half-lives = 14.375 grams

after 4 half-lives = 7.1875 grams

after 5 half-lives = 3.59375 grams

after 6 half-lives = 1.796875 grams

 

Step-by-step explanation:


6 0
3 years ago
The table shows transactions from five different bank accounts. Fill in the missing numbers.(IMAGE ATTACHED)
DerKrebs [107]

Answer:

80

64

-175

Step-by-step explanation:

512-432=80

52+12=64

75+-100=-175

7 0
4 years ago
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