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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?

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