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irinina [24]
3 years ago
6

What is the answer for cos 17pi/4

Mathematics
1 answer:
Georgia [21]3 years ago
8 0
Cos 17pi/4   =  cos pi/4       because  17pi / 4  = 16pi/4 + pi/40

cos pi/4 = 1 / sqrt2 or 0.7071 to nearest 10,000 th
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Complete the equation of the line through (2, 1) and (5, -8). Use exact numbers. y =​
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Answer:

Step-by-step explanation:

given: (2,1) & (5-8)

first find the slope,

m= (Y2-Y1) / (X2-X1)    

m=(-8-1)/(5-2)

m=(-9)/(3)

m=-3

we have y=-3x+b

use any point to sub in x and y

1=-3(2)+b

1+6=b

b=7               therefore, y=-3x+7 is the equation

4 0
3 years ago
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Find the 16th term of the sequence defined by the explicit rule. Assume that the domain of the function is
zysi [14]
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2x-3/x devided by 7/x^2
Sergio039 [100]

Answer:

\frac{2x^2-3x}{7}

Step-by-step explanation:

\frac{2x-3}{x} ÷  \frac{7}{x^2}

=> \frac{2x-3}{x} × \frac{x^2}{7}

=> \frac{2x-3}{7} × \frac{x^2}{x}

=>\frac{x(2x-3)}{7}

=> \frac{2x^2-3x}{7}

4 0
3 years ago
Mark moved into a new house and believes his bedroom will soon be taken over by ants. In the table shown below, Mark recorded th
ch4aika [34]

The number of new ants appearing in Mark's bedroom each day can be found to be 12 ants per day

<h3>How to find the number of ants?</h3>

To find the number of new ants coming into Mark's room every day, you should divide the difference between the number of ants on consecutive days by the difference between the days since Mark moved in.

The difference between the number of ants from day 3 to 5 is:
= 90 - 66

= 24 ants

The difference in the number of days:

= 5 - 3

= 2 days

The number of new ants is therefore:
= 24 / 2

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4 0
1 year ago
Simplify.
Dafna1 [17]

Answer:

A) 7x^3 + 13x^2 + 8x + 9

Step-by-step explanation:

(3x^2 + 2x + 7x^3) + (10x^2 + 6x + 9)

I like to line them up vertically

7x^3 +3x^2 + 2x

+       (10x^2 + 6x + 9)

-----------------------------------

7x^3 +13x^2 +8x +9

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3 years ago
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