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ICE Princess25 [194]

3 years ago

14

Starting at sea level a submarine rate to depth of -3/4 mile relative to sea level in 5 minutes. What was the submarine depth to

a sea level after the first minute
Please help

1 answer:

fgiga [73]3 years ago

5 0

This you would have to do a proportion

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Determine the equation of the line that passes through the given points. (If you have a graphing calculator, you can use the tab

expeople1 [14]

<span>
You can write the equation in point-slope form, which has the format <em>y-y</em>subscript1=<em>m</em>(<em>x-x</em>subscript1), with <em>y</em>subscript1 and <em>x</em>subscript1 being the y and x coordinates for a point on the line, and <em>m</em> being the slope. </span>

<span /><span>Substitute a y and x coordinate into the equation so you have <em>y</em>-6=<em>m</em>(<em>x</em>-2)</span>

<span /><span><span>Then find the slope so you can replace <em>m</em>. The slope formula is <em />(<em>y</em>subscript2-<em>y</em>subscript1)/(<em>x</em>subscript2-<em>x</em>subscript1). </span><span>Substitute the coordinates in so you have <em>m</em>=(16-6)/(4-2), which simplifies to 10/2 and then 5.</span></span>

<span><span /></span><span>Now the equation is <em>y</em>-6=5(<em>x</em>-2)</span>

<span />If you want a different form, for example slope-intercept form, you can change it to that:

<span><em>y</em>-6=5(<em>x</em>-2)</span>

<span><em>y</em>=5x-4</span>

6 0

3 years ago

Find the midpoint of the segment with the following endpoints.<br> (2,9) and (8,1)

vazorg [7]

Answer:

$\displaystyle (5,5)$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Algebra I</u>

Coordinates (x, y)
Midpoint Formula: $\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (2, 9)

Point (8, 1)

<u>Step 2: Identify</u>

(2, 9) → x₁ = 2, y₁ = 9

(8, 1) → x₂ = 8, y₂ = 1

<u>Step 3: Find Midpoint</u>

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute in points [Midpoint Formula]: $\displaystyle (\frac{2+8}{2},\frac{9+1}{2})$
[Fractions] Add: $\displaystyle (\frac{10}{2},\frac{10}{2})$
[Fractions] Divide: $\displaystyle (5,5)$

7 0

2 years ago

Did I do it rightly?

Andreas93 [3]

Yes. If the segment only has 2 points, it can be named both ways.

3 0

2 years ago

Hellllp meeeee plzzzzz

LenaWriter [7]

Whats the question
cant see it

5 0

3 years ago

Leorys favorite basketball player is 6 feet 8 inches tall how tall i leorys favorite basketball player in inches

sladkih [1.3K]

Answer: " 80 inches " .
_______________________________
Explanation:
_______________________________
6 feet + 8 inches = ?

Note: 12 inches = 1 ft.

6 ft * (12 inches/ ft) = 72 inches;
______________________________
72 inches + 8 inches = 80 inches.
_______________________________

5 0

3 years ago