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2 years ago

Slope is -2 and (1,1) is on the line

Mathematics

1 answer:

Mrac [35]2 years ago

7 0

-2x+3. X intercept is +3. Moves two steps down and one step to the right to land on the point (1,1)

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The fuel cost per hour for running a ship is approximately one half the cube of the speed (measured in knots) plus additional fi

andrezito [222]

Answer:

6 knots

Step-by-step explanation:

Let the speed be v knots

then time taken to cover 500 M = 500 / v hrs

fuel consumption /hr = 216 + 0.5v^3

let F be the fuel consumption for trip

= [500/v][216 + 0.5v^3]

= 500[216/v + 0.5v^2]

dF/dv = 500[ - 216/v^2 + v]

d^2F/d^2v = 500[432/v^3 + 1] , i.e. +ve

so setting dF/dv will give a minima

500[ -216/v^2 + v] = 0

or v = 216/v^2

or v^3 = 216

solving, we get v = [216]^(1/3) = 6 knots

7 0

3 years ago

I need help dont have a lot of time left

Nikolay [14]

Answer:

125 g

Step-by-step explanation:

mg is so little for an orange and kg is too large

so answer is 125 g.

3 0

3 years ago

Read 2 more answers

In the right triangle ABC shown, c=17ft and angle A=30 degrees Determine side a

jekas [21]

Using relations in a right triangle, considering c as the hypotenuse, we have that the length of side A is: $a = 8.5\sqrt{3}$

<h3>What are the relations in a right triangle?</h3>

The relations in a right triangle are given as follows:

The sine of an angle is given by the length of the opposite side to the angle divided by the length of the hypotenuse.

The cosine of an angle is given by the length of the adjacent side to the angle divided by the length of the hypotenuse.

The tangent of an angle is given by the length of the opposite side to the angle divided by the length of the adjacent side to the angle.

From the information given, we can build the following relation:

cos(A) = a/c.

$\frac{\sqrt{3}}{2} = \frac{a}{17}$

$a = \frac{17\sqrt{3}}{2}$

$a = 8.5\sqrt{3}$

More can be learned about relations in a right triangle at brainly.com/question/26396675

#SPJ1

6 0

1 year ago

PLEASE HELP I WILL MARK BRAINLIEST

Lelu [443]

Answer:

$27 \: {km}^{2}$

Step-by-step explanation:

Given is the shape of a trapezoid.

Therefore,

Area of the trapezoid

$= \frac{1}{2} (2 + 7) \times 6 \\ \\ = 9 \times 3 \\ \\ = 27 \: {km}^{2}$

5 0

2 years ago

A piece of pie costs .10 and a cup of coffee costs .5. How much will 40 pieces of pie and 20 cups of coffee cost?

dybincka [34]

One pie costs 0.10
you are buying 40 pies so...
40 x 0.10 = $4

one cup of coffee costs 0.50
you are buying 20 coffee so...
20 x 0.50 = $10

$4 + $10 = $14

It costs $14 to buy 40 pieces of pie and 20 cups of coffee

7 0

2 years ago