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kumpel [21]
3 years ago
10

The point(5/13,Y) IS IN THE 4TH quadrant corresponds to angle on the unit circle

Mathematics
1 answer:
shutvik [7]3 years ago
6 0
4th quadrant is positive x (cos) and negative y (sin)

Use the Pythagorean Theorem to calculate the value of y (sin).
x² + y² = c²
5² + y² = 13²
25 + y² = 169
       y² = 144
       y = 12

Since the y-value is negative in the 4th quadrant, then y = -12
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ASE
eimsori [14]

Answer:

128 deg

Step-by-step explanation:

The sum of the measures of the angles of a polygon of n sides is

(n - 2)180

A trapezium has 4 sides, so the sum of the measures of the angles is

(4 - 2)180 = 2(180) = 360

<em>m<CBE + m<C + m<D + m<DEB = 360</em>

Angles ABC and CBE are a linear pair so the sum of their measures is 180 deg.

m<ABC + m<CBE = 180

115 + m<CBE = 180

m<CBE = 65

m<C = x

m<D = 90

Angles DEB and DEF are a linear pair so the sum of their measures is 180 deg.

m<DEB + m<DEF = 180

m<DEB + m<103 = 180

m<DEB = 77

<em>m<CBE + m<C + m<D + m<DEB = 360</em>

65 + x + 90 + 77 = 360

x + 232 = 360

x = 128

Answer: 128 deg

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3 0
3 years ago
Read 2 more answers
Unit Rate, Help me pleaseeeeee
Burka [1]
Do you need a unit rate? Or do you have an attatchment for me to solve the unit rate? If you need an example of a unit rate one could be:

27 gallons.
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$3. Cost

27 divided by 3 is 9

9 gallons
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7 0
3 years ago
Solve for X<br> 121 +7&lt; -11<br> OR 5x- 8 &gt; 40
Trava [24]

Answer:

x > 48/5 the first one is false

3 0
2 years ago
PLEASE ANSWER QUICK
makvit [3.9K]
For the first equation, I put it in y=mx+b form, so y=-3x-9
the second one is x=4
hope i helped 
3 0
3 years ago
Which of the following is the solution set of the given equation?
GarryVolchara [31]
Answer is -10
(x-3)-2(x+6)= -5
x-3-2x-12= -5
-x= -5+12+3
-x=10
x= -10
3 0
2 years ago
Read 2 more answers
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