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2 years ago

A ship leave port and sails 12 km west, then 19 km north. Approximately how far is the ship from the port?

Mathematics

2 answers:

bulgar [2K]2 years ago

8 0

Answer: 22Km

Step-by-step explanation:

H^2=19^2+12^2

H^2=361+144

H^2=505

Then find the square root of both sides

H=Square root(505)

H=22km(to a whole number)

Zinaida [17]2 years ago

3 0

Answer:

22.47km

Step-by-step explanation:

first it travels west

then north therefore

it takes a turn at right angles

so the route forms a right triangle.

12 & 19 are the legs and the actual distance the hypotenuse.

use pythagoras theorem so

12^2+19^2=d^2

144+361=d^2

505=d^2

d=sqrt(505)

d=22.47 km

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iren [92.7K]

Answer: The value of $(f_\circ g)(x)$ is $4(x+1)^2$ .

Step-by-step explanation:

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To find: $(f_\circ g)(x)$

As we know it is composition function which means that g(x) function is in f(x) function.

So we have

$(f_\circ g) (x) = f[g(x)]$

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3 years ago

Evaluate the expression when X= -2 x^2 + 9x + 3

TiliK225 [7]

Answer:

-11

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

x² + 9x + 3

x = -2

Step 2: Evaluate

Substitute in x: (-2)² + 9(-2) + 3
Exponents: 4 + 9(-2) + 3
Multiply: 4 - 18 + 3
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2 years ago

There are 2000 pounds in a ton how can you write 2000 with and exponent

Makovka662 [10]

In scientific notation, it would be 2x10^3.
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2 years ago

Read 2 more answers

The system of equations is graphed on the coordinate plane. y=−12x−1y=14x−4 A graph with a blue line passing through coordinates

Anika [276]

We have that

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system of equations is
y=−12x−1
y=14x−4

using a graph tool
see the attached figure

the solution of the system is the point (0.115,-2.385)

case 2)
system of equations is
blue line passing through coordinates A (0, -4) and B (4, -3)
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using a graph tool
see the attached figure

the solution of the system is the point (4,-3)

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3 years ago

I am having trouble with number 2. Please show how the answer was gotten.

Andrews [41]

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2 years ago