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Degger [83]
3 years ago
9

Complete the proof.

Mathematics
1 answer:
Harman [31]3 years ago
4 0
2. Segment addition postulate
3. Substitution property of equality (AC=111; AB=7x+1; and BC=4x)
7. Symmetric Property of Equality
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Finding the Area to ABC (plotted below). All of the examples I’ve seen only discuss points and coordinates when I’m working on a
vovikov84 [41]

Answer:

Explanation:

Given the coordinates of the triangle as:

B(2, -8), C(-6, -2), and D(-7, -5)

The area is obtained using the formula:

A=\frac{1}{2}\begin{bmatrix}{x_1} & y_1{} & {1} \\ {x_2} & {y_2} & {1} \\ {x_3} & {y_3} & {1}\end{bmatrix}

Using the given parameters, we have:

undefined

8 0
1 year ago
Solve for x , 2x-11 -9+ x
romanna [79]
2x - 11
-9 + x
equate the equations
2x - 11 = -9 + x
bring like terms to one side
2x - 11 = -9 + x
- x   +11   +11  - x
-11 and +11 cancels out
+x and -x cancels out
2x - x = 11 - 9
x = 2


3 0
3 years ago
The cost of a gallon of gas increased from $3.54 to $3.87 over the weekend. What is the percent increase for the cost of gas, ro
Dmitrij [34]

Answer:

9%

Step-by-step explanation:

percent increase is calculated as

\frac{increase}{original} × 100%

increase = $3.87 - $3.54 = $0.33 , then

% increase = \frac{0.33}{3.54} × 100% ≈ 9% ( to the nearest whole percent )

5 0
1 year ago
Read 2 more answers
there are 360 students in a school 162 of them are girls find the percent of girls find the percent of boys​
Ronch [10]

Answer:

Total number of students = 360

Total number of girls = 120

Total number of boys = x / ?

120/240= 1/2

50%

Step-by-step explanation: To find out the percent of the boys you first

subtract the whole amount of students which is 360 students in total to the number of girls (120) resulting 240. 240 in ratio is 1/2. 1/2 is 50%.

(Not sure, if this helps or not. I try my best to answer questions to make the asker to understand! Sorry, I tried. :c)

7 0
3 years ago
Shoshana has 5/6 foot of string. greg has 3/4 as much. shoshana multiplies 5/6 by 3/4 to find out has much greg has who has more
Reptile [31]
Shoshana has more string than greg does.
8 0
3 years ago
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