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3 years ago

A model of a submarine has a length of 6.6 meters. Use the scale 1:35 to find the length

1 answer:

7 0

The scale 1:35 indicates that for every 1 meter on the scale model, there are really 35 meters in real life.

So if the scale model is 6.6 meters, you would do 35 * 6.6 to find the length in real life, which is 231 meters.

The answer is 231 meters.

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Twice the difference of 3x and y increased by 5 times the sum of x and 2y

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3 years ago

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4 years ago

Write an equation from the following points (plug in the numbers you would use for "m" and "b"):

Annette [7]

Answer:

$y =\fracc{4}{3}x+5$

m=4/3 and b=5

Step-by-step explanation:

We want to find the equation of the line passing through (3,9) and (6,13).

We determine the slope using:

$m = \frac{y_2-y_1}{x_2-x_1}$

Let:

$(x_1=3,y_1=9), (x_2=6,y_2=13)$

We substitute the points to get:

$m = \frac{13 - 9}{6 - 3} = \frac{4}{3}$

We now use the formula:

$y-y_1=m(x-x_1)$

We substitute to get:

$y - 9 = \frac{4}{3} (x - 3)$

Multiply through by 3 to get;

$3y - 27 = 4(x - 3)$

We expand further to get:

$3y - 27 = 4x - 12$

This implies that:

$4x - 3y = - 15$

We solve for y to get:

$y =\fracc{4}{3}x+5$

Therefore m=4/3 and b=5

4 0

3 years ago

Find m< AFE and include working out.

andreyandreev [35.5K]

Answer:

∠ AFE = 80°

Step-by-step explanation:

Since BD is a straight line , then

∠ AFB + ∠ AFE + ∠ EFD = 180°, that is

50° + ∠ AFE + 50° = 180°

100° + ∠ AFE = 180° ( subtract 100° from both sides )

∠ AFE = 80°

3 0

3 years ago