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2 years ago

Find the mean and median for this set of number: 80, 70, 60, 40, 80.

2 answers:

7 0

40, 60, 70, 80, 80
Mean = 66
Median = 70

(The mean of a set of numbers is the average so add all the numbers up and divide by the number of numbers = 40+60+70+80+80 = 330/5 = 66)
(The median of a set of numbers is the middle number = 70)

castortr0y [4]2 years ago

5 0

Median: 70 mean: 55.

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Describe the slope of these lines what do we call these lines?

zaharov [31]

Answer:

parallel lines

Step-by-step explanation:

the slope is 0

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2 years ago

What rigid transformation will take triangle GBC onto triangle ABC?

Softa [21]

Answer ITll take an obtusue from.

Step-by-step explanation:

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3 years ago

an automobile 16 feet long overtakes a truck that is 28 feet long and is traveling 30 mph. At what rate must the automobile trav

Oduvanchick [21]

<h2>Automobile must travel at 96 mph to pass the truck in 4 seconds.</h2>

Step-by-step explanation:

Length of automobile = 16 feet = 4.88 m

Length of truck = 28 feet = 8.53 m

Speed of truck = 30 mph = 48 km/h = 13.33 m/s

Time in which automobile to pass truck = 4 s

Distance traveled by truck in 4 seconds = 4 x 13.33 = 53.33 m

Distance which need to cover by automobile in 4 seconds to pass truck is the sum of length of automobile, length of truck and distance traveled by truck in 4 seconds.

Distance which need to cover by automobile in 4 seconds = 4.88 + 8.53 + 53.33

Distance which need to cover by automobile in 4 seconds = 66.74 m

Distance = Speed x Time

66.74 = Speed x 4

Speed = 16.69 m/s = 60 km/h = 96 mph

Automobile must travel at 96 mph to pass the truck in 4 seconds.

8 0

2 years ago

Simplify the following expression (x+y)²

MrMuchimi

Answer:

${x}^{2} + 2xy + {y}^{2}$

Step-by-step explanation:

1) Use square sum: (a + b)² = a² + 2ab + b².

${x}^{2} + 2xy + y^{2}$

Therefor, the answer is x² + 2xy + y².

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2 years ago

What is the biggest decimal and take away two

tensa zangetsu [6.8K]

Answer:

about -1

Step-by-step explanation:

0.9999999999 minus 2

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2 years ago