Answer:
13
Step-by-step explanation:
The theorem is that for a line bisecting two parallel lines, the oposite angles are equal. Hence, you can formulate the equation 4x+18 = 7x-21, which solves to 13.
Answer:
Points passing though are (12, 3),(–2, –5) and (1, 15)
Step-by-step explanation:
For a line passing through (x₁,y₁) and (x₂,y₂) slope is given by 
.
Here we have one point (0, –1), we need to check slope of all the points given.
(12, 3)
(–2, –5)
(–3, 1)
(1, 15)
(5, –2)
Points with positive slope are (12, 3),(–2, –5) and (1, 15)
Answer:
what functions?
Step-by-step explanation:
B. c = ((3)sin45°)/sin40°
Side a is given information: 3cm, and we can find angle A (which is the angle opposite side a) by subtracting the other two angles from 180 because the total interior angle measures of a triangle add to equal 180°.
Angle A = 180 - (95+45) = 40°.
This can be substituted into the equation for the law of sines.
sin(40)°/3 = sin(45)°/c
—Cross multiply
c•sin(40)° = 3•sin(45)°
—divide both sides by sin40 to get the variable c alone and we get:
c = (3)sin(45°)/sin(40°)
this also simplifies to 3.3 cm.
Answer:
<em>132</em>
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Explanation:
All you need to do is separately find the area of the shapes that are part of the figure (in this case the trapezoid and rectangle), and then add them all up.
1.(7x4) + (1/2x8[7+19])
2. 28 + 104
3. 132
~Hope this helps you~
