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professor190 [17]
3 years ago
5

Cos(x/3)cos(x/3)=1/2(1+cos(2x/3))

Mathematics
2 answers:
TEA [102]3 years ago
6 0
This follows from the half-angle identity for cosine.

\cos^2\theta=\dfrac{1+\cos2\theta}2
aleksklad [387]3 years ago
4 0

Answer:

it's true, don't have a step by step explanation just did it on my test.

Step-by-step explanation:

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Reflect the triangle =(-1,-2), 4(1,1), V(4,- 3) across the line y = x
alekssr [168]

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the line y = x

a point (x, y ) → (y, x ) , thus

(- 1, - 2 ) → (- 2, - 1 )

(1, 1 ) → (1, 1 )

(4, - 3 ) → (- 3, 4 )

5 0
3 years ago
Find the value of x in the following proportion:
prisoha [69]

Answer:

12

Step-by-step explanation:

6 0
3 years ago
Draw a box-and-whisker plot for the set of data. 27, 35, 44, 51, 52, 54, 56, 69, 69, 79, 80, 100, 100 a. Please select the best
Finger [1]

look at the picture not my text lol

6 0
3 years ago
Read 2 more answers
What group of americans were helped by andrew jackson
Ugo [173]
Jackson achieved national distinction for his performance in the War of 1812. In the Battle of Horseshoe Bend, he oversaw the destruction of 15 percent of the Creek population; the treaty that ended hostilities forced the Creek to cede over 20 million acres of their ancestral lands. Jackson is most remembered for his performance in the Battle of New Orleans, during which he led his troops to a decisive victory over the British after the Treaty of Ghent had been signed and hostilities had officially ended.
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In December 1817, President James Monroe authorized Jackson to lead an offensive against the Seminole and Creek Indians in Georgia and Florida, sparking the First Seminole War. Jackson ordered his troops to destroy Seminole settlements, capture a Spanish fort, and execute two British citizens whom Jackson blamed for supporting the Seminoles against white people. In 1819, the Spanish ceded all of Florida to the United States in the Adams-Onís—or Transcontinental—Treaty.
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cubed
The election of 1828 and the Bank War

The presidential election of 1828 pitted incumbent John Quincy Adams against Andrew Jackson. Adams was the candidate of the National Republicans, while the party that arose around Jackson became known as the Jacksonian Democrats, or simply, the Democrats.
7 0
3 years ago
A shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 3
Neko [114]

You can park in the garage for 5 hours 30 minutes

<em><u>Solution:</u></em>

Given that, shopping mall parking garage charges $2 for the first half hour and $1.20 for each additional half hour (even if it is under 30 minutes)

Therefore,

Cost for first half an hour = $ 2

Cost for each additional half an hour = $ 1.20

Let "x" be the number of each additional half hour

Therefore, total cost to pay is given as:

Total cost = Cost for first half an hour + (Cost for each additional half an hour)(number of each additional half hour)

Total cost = 2 + 1.20x

<em><u>Given you have $ 8 in cash</u></em>

8 = 2 + 1.20x\\\\1.20x = 8 - 2\\\\1.20x = 6\\\\x = \frac{6}{1.20}\\\\x = 5

Total hours parked = first half an hour + 5

Thus you can park in the garage for 5 hours 30 minutes

4 0
3 years ago
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