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lubasha [3.4K]
4 years ago
13

Question 2.

Mathematics
1 answer:
ipn [44]3 years ago
3 0

Answer:

1) -0.669

2) -0.669

3) 0.669

Step-by-step explanation:

Since we are subtracting or adding multipled of pi, we will either obtain 0.669 or -0.669 as our answer for each of the three different questions.

Cosine is the x-coordinate in our orderes pairs. If our point ends up on the right side of the y-axis, the cosine will be positive. If our point ends up on left side, it will be negative.

Choose a thetha (I'm going to choose it in degrees) in the first quadrant to help with a visual.

If theta=70:

1) then 180-70=110 which is in second quadrant, so our cosines will be opposite in value.

2) then 180+70=250 which is in third quadrant, so our cosines will be opposite in value.

3) then 4×180-70=720-70=650 =1(360)+290 which ends up in the 4th quadrant which means the consines will have the same value.

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Miriam reduced a square photo by cutting 3 inches away from the length and the width so it will fit in her photo album. The area
vfiekz [6]
(x - 3)^2 = 64
x - 3 = 8
x = 11

The first answer.
8 0
4 years ago
Read 2 more answers
for a fixed voltage, the current in an electrical circuit varies inversely as the resistance in the circuit. If a certain has a
Tatiana [17]

Answer:  1.75 amps

<u>Step-by-step explanation:</u>

V (voltage) = I (current) · R (resistance)

              V =    3.5 (110)

                 =   385

When Resistance is doubled, the current is cut in half.

             V = I R

         385 = I (2 · 110)

         \dfrac{385}{220}=\text{I}

         1.75 = I          

7 0
3 years ago
Hi! Please explain how you got the answer, thanks! :))​
disa [49]

Answer:

2000

Step-by-step explanation:

1996: 30+5 5×6=30

2000: 60+10 10×6=60

5 0
3 years ago
The number -13 can be classified as:
pogonyaev
<h3>Answer: Choice B) real and integer</h3>

Explanation:

The set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ...} basically its the set of positive and negative whole numbers, including 0 as well. The set of whole numbers is {0, 1, 2, 3, 4, ...} so any positive number that does not a fractional or decimal part. The value 0 is included in the set of whole numbers. The natural numbers is {1, 2, 3, 4, ...} so it is the set of whole numbers but we kicked out 0 from this set. The set of natural numbers is also called the set of counting numbers.

If we take any two integers and divide them then you'll get a rational number. You cannot have zero in the denominator, but you can have any other integer. For example,  2 and 3 divide to get the fraction 2/3 which is a rational number. Numbers that we cannot express as a fraction of two integers are said to be irrational. An example of this is pi = 3.14 which is irrational. We cannot write pi as a ratio of two integers. One approximation is pi = 22/7, but this doesn't represent pi exactly. Any integer itself is rational. Something like -13 can be written as -13/1, so we cannot say -13 is irrational. That rules out choice A. Choice C is ruled out because negative numbers aren't natural numbers. The same can be said about -13 not being part of the whole number set {0, 1, 2, 3, 4, ...} so choice D is also false.

7 0
3 years ago
What is the gcf of 16 24 and 36
Nutka1998 [239]

Answer:

4

Step-by-step explanation:

Calculate Greatest Common Factor for :

   16, 24 and 36

Factorize of the above numbers :

   16 = 2^{4}  

   24 = 2^{3} • 3  

   36 = 2^{2} • 3^{2}  

Build a prime factors table

   Number of times each prime factor

   appears in the factorization of :

Prime  Factor     Number  16   Number  24   Number  36    G.C.F   (min)  

2 4 3 2 2

3 0 1 2 0

GCF = 2²

Greatest Common Factor is :

     4

Hope this helps :)

7 0
4 years ago
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