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alexandr1967 [171]
2 years ago
8

Find the range of y=3/2cos4x-1

Mathematics
1 answer:
MrRissso [65]2 years ago
5 0

Answer:

Range = [- 2.5, 0.5] = [ - 5/2, 1/2]

Step-by-step explanation:

Smallest value of cos α = - 1,

largest value of cos α = 1.

When cos 4x = - 1,  y=3/2cos4x-1 = 3/2*(-1) - 1 = - 5/2 = - 2 1/2 = - 2.5

When cos 4x = 1,  y=3/2cos4x-1 = 3/2*1 - 1 = 1/2 = 0.5

Range = [- 2.5, 0.5] = [ - 5/2, 1/2]

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Eight teams of high school students helped clean up trash in the community. Afterwards, they shared 23 pizzas equally. How many
USPshnik [31]
Answer:
each team got 2.875 pizzas

Explanation:
We are given that:
number of teams = 8 teams
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Now, these 23 pizzas will be divided equally among the 8 teams.
So, to get the amount that each team will get, all you have to do is divide 23 by 8 and get the result as follows:
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Hope this helps :)
3 0
2 years ago
The area of a trapezoid is 864 cm2. It has a height of 24 cm, and the length
Paha777 [63]

Answer:

Step-by-step explanation:

Area of trapezium = 1/2 × h (a+b) = 864 cm^2

where h is the height and a and b are the two parallel sides

h = 24 cm

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b = ?

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5 0
2 years ago
The number of people who attend a concert varies directly with the amount of money spent on advertising. If 790 tickets are sold
tangare [24]

Answer:

$4837.5

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So, $4837.5 is spent on advertisements to get a sellout crowd of 1500

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2 years ago
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Akimi4 [234]
Consider this option:
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answer: B.
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2 years ago
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