Question:
a. AB = 15 cm, BC = 20 cm, ∠B = 40°
b. AB = 20 cm, AC = 15 cm, ∠C = 40°
c. BC = 10 cm, AB = 5 cm, ∠A = 20°
d. AC = 5 cm, BC = 10 cm, AB = 14 cm
Answer:
The correct options are;
a. No
b. Yes
c. Yes
d. No
Step-by-step explanation:
a. AB = 15 cm, BC = 20 cm, ∠B = 40°
No
The above dimensions include two sides and an included angle, therefore, the triangle is well defined, such that the dimensions of the third side can be found by the given information using cosine rule
b. AB = 20 cm, AC = 15 cm, ∠C = 40°
Yes,
The above dimensions include two sides and a non included angle, therefore, the triangle is not well defined, such that the third side and the other two angles can be made to to make up to a different triangular configuration can be made
c. BC = 10 cm, AB = 5 cm, ∠A = 20°
Yes
The above triangle could be made into one of two triangles
d. AC = 5 cm, BC = 10 cm, AB = 14 cm
No
The above triangle is well defined with all side dimensions known and the angles can be found by cosine rule.
b. 3x - y - 2 = 0
c. 3x + y - 2 = 0
The equation in general form of a line is Ax + By + C = 0. Option a, -3x - y + 2 = 0, is already in general form.
The equation of a line can be written in different forms, such as point-slope form or slope-intercept form. The general form of a line, also known as the standard form, is given by Ax + By + C = 0. To determine the equation in general form, we need to rearrange the given equation.
Option a: -3x - y + 2 = 0. This equation is already in general form.
Option b: 3x - y - 2 = 0. To convert this equation to general form, we add 2 to both sides: 3x - y = 2.
Option c: 3x + y - 2 = 0. To convert this equation to general form, we subtract 2 from both sides: 3x + y = 2.
Therefore, option a (-3x - y + 2 = 0) is already written in general form.
#SPJ3
Answer:
slope = - , y- intercept = 1
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
given the line with equation
y = - x + 1 ← in slope- intercept form
with slope m = - and y- intercept c = 1
Answer & Step-by-step Explanation
We're given the following equation to work with.
We need to find the slope and the y-intercept.
The slope is the number in front of x, and the y-intercept is the constant term.
Therefore,
◈ ⋆ ◈ ⋆ ◈ ⋆ ◈ ⋆
Note: This way of finding the slope only works for slope-intercept form. Slope-intercept is where m is the slope and b is the y-intercept.
◈ ⋆ ◈ ⋆ ◈ ⋆ ◈ ⋆
what's the answer
Answer:
2
Step-by-step explanation:
The easiest way to explain slope is the units up between each point on the line, divided by the units across. For this graph:
(-5,-6) and (0,4)
(y2 - y1) / (x2-x1)
4-(-6) = 4+6 = 10
0-(-5) = 0+5 = 5
10/5 = 2
Hope this helped!
Answer:
answer 3/4
Step-by-step explanation: