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4 years ago

Help! giving 13 points!

1 answer:

6 0

To determine the perimeter of the triangle given the vertices, calculate the distances between pair of points. For the first pair (-5,1) and (1,1), the distance is 6. For the next pair, (1,1) and (1, -7), the distance is 8. Lastly, for the pair of points (-5,1) and (1, -7), the distance is 10. Adding all the distance will give the perimeter of the triangle. Thus, the perimeter is 24.

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A wrestling match has eliminations each round. The table below shows the number of wrestlers in each of the first 4 rounds of th

Mekhanik [1.2K]

negative fifty five over three, on average, there were 55 fewer players for every 3 rounds

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6 0

3 years ago

Read 2 more answers

Jacob invested $300 in a savings account and earned $81 in interest at the end of 9 years. What was the interest rate?

ollegr [7]

R = (1/t)(A/P - 1)r = (1/9)((300/81) - 1)Reduce the expression by cancelling the common factors.r=(1/9)(100/27−1)Combine 100/27 and −1 using a common denominator.r=(1/9)(100−1⋅27/27)Simplify the numerator.r=(1/9)(73/27)r = 0.30041152converting r decimal to a percentageR = 0.30041152 * 100 = 30.0412%/yearA. 3%
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4 years ago

What is the volume of this Sphere? 8 pi cm3 16 pi cm3 27 pi cm2 36 pi cm2

agasfer [191]

Answer:

V = 36 pi cm^3

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3 where 4 is the radius

V = 4/3 pi(3)^3

V = 36 pi cm^3

6 0

3 years ago

X= a) 80 b) 90 c) 100

Alinara [238K]

The diameter is 80 or the first answer

6 0

4 years ago

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The top of a 230 foot vertical tower is to be anchored by cables that make an angle with a measure of 50 degrees with the ground

Triss [41]

9514 1404 393

Answer:

cable length: 300.2 ft
anchor distance: 193.0 ft

Step-by-step explanation:

The side given is opposite the given angle. We want to find both the hypotenuse and the adjacent side in the right triangle that models the geometry.

Sin = Opposite/Hypotenuse

sin(50°) = (230 ft)/h

h = (230 ft)/sin(50°) ≈ 300.24 ft

The length of the cable must be about 300.2 feet.

Tan = Opposite/Adjacent

tan(50°) = (230 ft)/d

d = (230 ft)/tan(50°) ≈ 192.99 ft

The cable must be anchored about 193.0 ft from the tower.

4 0

3 years ago