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3 years ago

In ABC m /_A = 65° and m/_B= 80° Select the triangle that is similar to ABC

Mathematics

2 answers:

Andreyy893 years ago

8 0

The correct answer is option C. Because the missing angle in ABC is 35 degrees

kari74 [83]3 years ago

8 0

Answer:

C is the correct answer.

Step-by-step explanation:

All of the angles in a triangle add up to 180 degrees. 65+80=145 and when you do 180-145, you get 35 degrees. You can check to see if it's correct by adding 35, 65, and 80 together.

$65+80=145$

$180-145=35$

$35+65+80=180$

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Find the slope of the line that is (a) parallel and (b) perpendicular to the line through the pair of points.

ddd [48]

Answer:

a) The slope of the line is parallel to the another line m=4

b) The slope of the line is perpendicular to the another line m= $\frac{-1}{4}$

Step-by-step explanation:

Step1:-

Slope of a line :-

If θ is the inclination of a line 'l' then tanθ is called the slope or gradient of the line 'l'.The slope of a line is denoted by m=tanθ

The slope of a line given two points m= $\frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

Parallel lines:-

Two non-vertical lines are parallel if and only if their slopes are parallel

Perpendicular lines:-

Two non-vertical lines are perpendicular to each other if and only if their slopes are negative reciprocals of each other.

$m_{2} = \frac{-1}{m_{1} } \\$

Step 2:-

a)The slope of a line when given two points (-1,-4) and (0,0)

$m = \frac{0-(-4)}{0-(-1)} =4$

Two non-vertical lines are parallel if and only if their slopes are parallel

$m_{1} = m_{2}$

Therefore the slope of the line that is parallel to the another line

$m_{1} =m_{2} =4$

Step 3:-

b) Two non-vertical lines are perpendicular to each other if and only if their slopes are negative reciprocals of each other.

$m_{2} = \frac{-1}{m_{1} } \\$

$m_{2} =\frac{-1}{4}$

Therefore the slope of the line is perpendicular to the another line is

$m=\frac{-1}{4}$

3 0

3 years ago

Read 2 more answers

FREEEEEEEEEEEEEEEEEE POINTS GET RICHHHHHHHHHHHHHHHHHH

guajiro [1.7K]

Answer:

Richhhh!!! Thanks for the points!!

Step-by-step explanation:

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3 years ago

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Identify the graph of the inequality 2(2x-1)+7<13 or-2x + 5≤-10.

xxMikexx [17]

Answer:

Step-by-step explanation:

(

−

)

Expand LHS

→

−

Divide through by

→

is represented on the real line by the interval

(

−

∞

)

This can be represented on the

−

plane by the area to the left of the vertical line

as graph below.

graph{2(2x-1)+7<13 [-10, 10, -5, 5]}

5 0

2 years ago

Ted needs an average of at least 70 on his three history tests. He has already scored 85 and 60 on two tests. What is the minimu

baherus [9]

He must get a 65 as a minimum grade on his third test to get an average of 70.
Equation is
85 + 60 + x
------------------- greater than or equal to 70
3

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3 years ago

EXPERT HELP: EXPLAIN THE ANSWER AND DON'T GUESS Tell me the mean of each brand

rosijanka [135]

Answer:

Step-by-step explanation:

IF you count the dots for each graph, you would see that the minimum for B is Higher than group A's maximum, Therefore, the numbers do not overlap. This means that at a simple glance you can see which company does better.

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3 years ago