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3 years ago

You move right 7 units. you end at (4,-4) where did you start? someone please help fast.

Mathematics

1 answer:

spin [16.1K]3 years ago

7 0

Answer:

(-3 , -4)

Step-by-step explanation:

When you move right on a coordinate plane, you go up positively on the X axis. So in order to find where you started, simply reverse the change by subtracting 7 from 4, and you get -3.

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Select the correct answer.

aleksley [76]

Answer:

$24,890.46, $25,109.59

Step-by-step explanation:

Given:

n = 48, the sample size

m = $25,000, th sample mean

σ = $3000, the maximum variance

The standard deviation is

s = √σ = √(3000) = 54.772

As a rule of thumb, the range is 4 times the standard deviation. Therefore the range is

R = 4*54.772 = 219.09

Half the range is

R/2 = 219.09/2 = 109.45

The required range is

(25000-109.45, 25000+109.45) = (24890.46, 25109.54)

Answer: $24,890.46, $25,109.54

3 0

2 years ago

Symbols The difference in speeds of El Toro and T Express is 5 miles per hour. If El Toro has the greater speed, write and solve

Maslowich

Let the speed of El Toro be x mph and that of T Express be y mph.

Given : Speed of El Toro > Speed of T Express

i.e, x > y

Also, the difference in the speeds of El Toro and T Express is 5 mph.

So, the required equation is

x - y = 5

To determine the speed of a train, the speed of other is required.

The speed of El Toro = Speed of T Express + 5

The speed of T Express = Speed of El Toro - 5

5 0

3 years ago

Read 2 more answers

teacher asked her students write down the number of hours studied rounded to the nearest half hour. she complies the results in

Whitepunk [10]

Answer:

1.5

Step-by-step explanation:

The question is incomplete due to the probability distribution table, investigating you can find it so I will attach it.

Having the table, we need to find the mean of the probability distribution, which is defined as the sum of the product of probability and value of random distribution, that is:

M = Sum (xi) * P (xi)

We replace:

M = 0.5 * 0.07 + 1 * 0.2 + 1.5 * 0.46 + 2 * 0.2 + 2.5 * 0.07

M = 1.5

Therefore, the mean of the given table is 1.5