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3 years ago

A skydiver falls 144 feet in three seconds. How far does the skydiver fall per second?

Mathematics

1 answer:

evablogger [386]3 years ago

7 0

Answer:

48 feet per second

Step-by-step explanation:

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This using the substitution method

Gnesinka [82]

4x + 3y = 26
x = 3/2y + 2

solving for y:

4 (3/2y + 2) + 3y = 26
6y + 8 + 3y = 26
9y + 8 =26
9y = 18
y = 2

solving for x:
x = 3/2(2) + 2
x = 3 + 2
x = 5

done.
**optional: use second equation to check

8 0

3 years ago

What is 0.07 as a fraction

ziro4ka [17]

0.07 as a fraction would be 7/100.

4 0

3 years ago

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HELP ASAP! GIVING BRAINLIEST!

bearhunter [10]

Answer: Approximately 19.18 Cubic Centimeters

Step-by-step explanation:

V=πr^2h/3

=π·2^2·4.58/3

≈19.18466

Possibly answer B?

5 0

4 years ago

The weight gain of beef steers were measured over a 140 day test period. the average daily gains (lb/day) of 10 steers on the sa

diamong [38]

Answer:

$\bar x = 3.545$

$Median = 3.435$

Step-by-step explanation:

Given

$x:3.89, 3.51, 3.97, 3.31, 3.21, 3.36, 3.67, 3.24, 3.27$

$10th: 4.02$

Solving (a): The mean

This is calculated as:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{3.89 +3.51 +3.97 +3.31 +3.21 +3.36 +3.67 +3.24 +3.27+4.02}{10}$

$\bar x = \frac{35.45}{10}$

$\bar x = 3.545$

Solving (b): The median

First, we sort the data; as follows:

$3.21, 3.24, 3.27, 3.31, 3.36, 3.51, 3.67, 3.89, 3.97, 4.02$

$n = 10$

So, the median position is:

$Median = \frac{n + 1}{2}th$

$Median = \frac{10 + 1}{2}th$

$Median = \frac{11}{2}th$

$Median = 5.5th$

This means that the median is the average of the 5th and 6th item

$Median = \frac{3.36 + 3.51}{2}$

$Median = \frac{6.87}{2}$

$Median = 3.435$

4 0

3 years ago

Choose the equation that represents the line that passes through the point (6, −3) and has a slope of one half. y equals one hal

garik1379 [7]

Answer:

$y = \frac{1}{2}x - 6$

Step-by-step explanation:

Slope of line (m) = 1/2

Since the line is passing through the point (6, -3) ∴ $x_{1} = 6\ and\ y_{1} = -3$

Now, equation of line in Point-slope form is:

$(y - y_{1}) = m (x - x_{1})$

By substituting the values of m, $x_{1}\ and\ y_{1}$

$(y - (3)) = \frac{1}{2}(x - 6)$

$y + 3 = \frac{1}{2} ( x - 6)$

$y = \frac{1}{2}x - 3 - 3$

$y = \frac{1}{2}x - 6$

Therefore, the equation of line passing through pong (6, -3) is $y = \frac{1}{2}x - 6$

3 0

3 years ago

Read 2 more answers