What is the cosine of 30?

Mathematics

2 answers:

yaroslaw [1]2 years ago

4 0

The correct answer is A

shutvik [7]2 years ago

3 0

The answer is A. sqrt3 / 2

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A class has $90 to spend on a field trip. The field trip costs $2.50 per person and there will be 5 chaperones on the trip. One

vodka [1.7K]

Answer:

Step-by-step explanation:

x is the number of students

(x+5) is the number of students and chaperons

$2.50·(x+5) is the amount of money the number of students and chaperons will pay for the trip, and that number should be less or equal than $90 because those are all the money they have

2.50(x+5) ≤ 90 which is the same as 90 ≥ 2.50(x+5)

The inequality "90 greater-than 2.50 (x + 5) "

90 > 2.50(x+5) is an error becase it excludes the possibility that the trip can cost exact $90 so we need not just greater than > , yet greater and equal than ≥ sign

90 ≥ 2.50(x+5)

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2 years ago

beth is making the minimum wage of $7.25 per hour. her boss promises her a raise of 5% how much more per week will she make if s

Korvikt [17]

Answer:

$13.60 difference approximately.

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2 years ago

Slope intercept form of 12x-y=4

Nata [24]

Hey there! :)

Please keep in mind that slope-intercept form is : y=mx+b ; where m=slope, b=y-intercept

Using this, we can isolate y in our original given equation.

12x - y = 4

Start off by subtracting 12x from both sides.

-y = -12x + 4

Divide both sides by -1.

-y ÷ -1 = (-12x + 4) ÷ -1

Simplify!

y = 12x - 4

Therefore, using the slope-intercept form, we can come to the conclusion that because 12 is located in the "m" slot and "m=slope" then 12 is our slope. In addition, -4 is our y-intercept because it is located on the y position.

Slope = 12

Y-intercept = -4

Hope I helped! :)

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2 years ago

Descending order 4x^3+3x^7-9x+x^12

luda_lava [24]

Answer:

$x^{12} +3x^{7} +4x^{3} -9x$