3 years ago

What is the y-intercept of the function y = negative one-half cosine (three-halves x)?

Mathematics

2 answers:

Zarrin [17]3 years ago

7 0

Answer:

It should be B. (0, -1/2)

Step-by-step explanation:

Jet001 [13]3 years ago

3 0

A. Sorry if I’m wrong

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An artist wants to frame a square painting with an area of 400 square inches. She wants to know the length of the wood trim that

marysya [2.9K]

Area of square painting is 400 square inches.

Let the side of square painting is = a inch

So the area of square painting is = $a^2$ square inch.

So $a^2 = 400

a = \sqrt{400}$

$a = 20 inch$

Length of wood trim to need to go around the painting is equal to the perimeter of square painting .

So the perimeter of square painting is = 4 * (side)
= 4* 20 = 80 inch.

So the required length of wood trim is = 80 inch.

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3 years ago

Last time, one out of every 4 students in our class was absent. This time, after Jen came back, only one out of every 5 students

VMariaS [17]

Answer: There are 20 students and 4 students are not here today.

Step-by-step explanation:

If the number of students = 4

Let the number of students be 'x'.

Fraction of students absent = $\dfrac{x}{4}$