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dedylja [7]
3 years ago
12

25 POINTS!

Mathematics
1 answer:
WITCHER [35]3 years ago
5 0

Answer:

The cosine of the angle is: negative

The sine of the angle is: positive

Step-by-step explanation:

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A sector of a circle has a central angle of 45 . Find the area of the sector if the radius of the circle is 15 cm.
prohojiy [21]

Answer:

A = 28.125 * pi cm^2

A = 88.357  cm^2


Step-by-step explanation:

Area of a sector is 1/2 r^2 theta  where theta is in radians

convert 45 degrees to radians

theta = 45 * pi/180 = pi/4

A = 1/2 * 15^2 * pi/4

A =1/2 * 225 * pi/4

A = 28.125 * pi cm^2

A = 88.357  cm^2


6 0
3 years ago
Match the reasons with the statements in the proof.
natta225 [31]
<span>1. m∠6=m∠8, b||c
Given

2. m∠7=m∠8
</span><span>If lines ||, corresponding angles =.
</span><span>
3. m∠6=m∠7
</span>Substitution 
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4. a||b </span>
If alternate interior angles equal, then lines ||. 
6 0
3 years ago
Read 2 more answers
I need help really bad please
Effectus [21]
(18.6 + 9.4) x 1/2^2= 7 hope it helps!
3 0
2 years ago
Find the quotient 9 3/5 divided by 8/15
bazaltina [42]

Answer:

18

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP ASAP!!!!!!!1
melisa1 [442]

The series diverges. You Consider concluding this because the series is in arithmetic progression.

<h3>What is an arithmetic sequence?</h3>

An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference.

The explicit formula for any arithmetic series is given by the formula,

a_n = a_1 + (n-1)d

where d is the difference and a₁ is the first term of the sequence.

The given series of numbers 1/4+3/2+11/4+4+21/4+.... is an arithmetic series because the difference between any two consecutive terms is 5/4. Therefore, the blanks can be filled as,

The series diverges. You Consider conclude this because the series is in arithmetic progression.

Learn more about the Arithmetic sequence:

brainly.com/question/3702506

#SPJ1

8 0
2 years ago
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