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riadik2000 [5.3K]
3 years ago
8

Sasha has a triangle with vertices A,B and C. The triangle has three congruent angles. She wants to show that triangle ABC has t

hree congruent sides,but she does not have a ruler to measure the lengths of the sides. How can she show that the triangle has three congruent sides?
Mathematics
1 answer:
pshichka [43]3 years ago
5 0
I believe that you should mark each side with one hash mark on each side of the triangle
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A typical television newscast has three cameras. The center camera directly faces the news anchors desk. The other two cameras a
Mnenie [13.5K]
<span>150 degrees. Let's assume the center camera is pointed to at an angle of 0 degrees. Since it has a coverage of 60 degrees, then it will cover the angles from -30 to +30 degrees. Now we'll continue to use the +/- 30 degree coverage for the other two cameras. The second camera is aimed at 45 degrees, so it's range of coverage is 15 degrees to 75 degrees (45 +/- 30). Notice that the range from 15 degrees to 30 degrees is covered by 2 cameras. Now the 3rd camera is pointed at -45 degrees, so its coverage is from -15 degrees to -75 degrees. It also has an overlap with the 1st camera from -15 to -30 degrees. The total coverage of all three cameras ranges from -75 degrees to 75 degrees. That means that an arc of 150 degrees in total is covered by all three cameras.</span>
7 0
3 years ago
Solve the equation <br> 5x + 8 - 3x = 10
ra1l [238]

Answer: X=1


Step-by-step explanation: 5x+8-3x=10

Combine like terms; 5x + (-3x) = 2x

Rewrite; 2x+8=10

Get “x” alone; 2x+8=10

-8. -8

Simply divsion; 2x=2

X=1


6 0
3 years ago
Given a≠±b and a^2−b^2 / a+b =12, find a−b.<br> pls hlep
Readme [11.4K]

Answer:

a - b = 12

Step-by-step explanation:

Given

\frac{a^2-b^2}{a+b} = 12 ← factor the numerator

a² - b² ← is a difference of squares and factors as

a² - b² = (a - b)(a + b)

Thus

\frac{(a-b)(a+b)}{a+b} = 12

Cancel the common factor (a + b) on numerator/ denominator, thus

a - b = 12

7 0
3 years ago
Tiffany and Mansi set up a lemonade stand and sell cups of lemonade at a rate of 7 cups per hour. After 5 hours there are 89 cup
ludmilkaskok [199]
7 Cups x 5 Hours = 35 Cups sold
89 Cups + 35 = 124 Cups

They stared with: 124 Cups

7 Cups X 15 Hours = 105 Cups

124 - 105 = 19

19 Cups will be left after 15 Hours.
5 0
3 years ago
What’s the vertical and horizontal line?
coldgirl [10]

Answer:

Part 1) Vertical line : x=1

Part 2) Horizontal line :  y=-4

Step-by-step explanation:

Part 1) Write the equation for the vertical line passing through the point (1,-4)

we know that

The equation of a vertical line (parallel to the y-axis) is equal to the x-coordinate of the point that passes through it

so

The x-coordinate is 1

therefore

The equation of the line is

x=1

Part 2) Write the equation for the horizontal line passing through the point (1,-4)

we know that

The equation of a horizontal line (parallel to the x-axis) is equal to the y-coordinate of the point that passes through it

so

The y-coordinate is -4

therefore

The equation of the line is

y=-4

5 0
3 years ago
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