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2 years ago

How can you use geometric formulas in real world situations

Mathematics

1 answer:

aev [14]2 years ago

6 0

By understanding geometric symmetry and understanding natural phenomena

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A boat is carried with the current at an angle of 43 degrees to the shore. if the river is approx. 15 meters wide, how far does

mylen [45]

Answer:

22 m

Step-by-step explanation:

The computation of the how much far does the boat travel is as follows:

sin 43 degrees = 15 ÷ d

d = 15 ÷sin 43 degrees

= 15 ÷ 0.6820

= 21.99

= 22 m

Hence, the how much far does the boat travel is 22 m

We simply applied the above formula so that the correct value could come

The same is to be considered

8 0

2 years ago

A linear function has a slope of -7/9 and a y-intercept of 3. How does this function compare to the linear function that is repr

Dmitriy789 [7]

The answer is that they're equal, one is just in point-slope form and the other is in slope-intercept form

4 0

2 years ago

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A rescue helicopter flew from its home base for 35 kilometers on a course of 330 degrees to pick up an accident victim. It then

artcher [175]

I've drawn a triangle to represent the journey (see attached.

The angle from Home to Victim to Hospital is:

a = $90 - (360 - 330) = 90- 30 = 60^o$

Using the cos rule, we can solve for the length x:

$a^2 = b^2 +c^2 - 2bccosA
\\x^2 = 35^2+25^2-2(35)(25)cos60
\\x^2 = 1850 - 875
\\x^2 = 975
\\x = \sqrt{975}
\\x = 31.2249...$

Using the cos rule, we can solve for angle b:

$a^2 = b^2 +c^2 - 2bccosA
\\35^2 = 31.22...^2+25^2-2(31.22...)(25)cosb
\\1225 = 975 + 625 - 1561.249...cosb
\\-375 = -1561.249...cosb
\\b = cos^{-1}( \frac{-375}{-1561.249...}) 
\\b = 76.1...$

So the bearing the helicopter has to travel is:

270 - 76.1 = 193.9 degrees (1 dp)

And the distance it travels is 31.2 km (1 dp)

5 0

2 years ago

What is the answer for thi problem 6×(7+13)-50

vesna_86 [32]

Answer:

6×(7+13)-50= 70

Step-by-step explanation:

First, solve the problem inside the parenthesis.

6×20-50

Now, multiply 6 times 20.

120-50

Subtract to get the final answer.

120-50= 70

5 0

2 years ago

Read 2 more answers

Seven pounds of grapes cost 10.43. How much would 3 pounds cost?

KiRa [710]

To answer this we will find the unit rate by dividing. Lets do it:-

10.43 ÷ 7 = 1.49
1 pound of grapes = $1.49

CHECK OUR WORK:-

1.49 × 7 = 10.43
we were RIGHT!!!

Now lets multiply to see how much 3 pounds would cost.

1.49 × 3 = 4.47

CHECK OUR WORK:-

4.47 ÷ 3 = 1.49
We were RIGHT!!

So, 3 pounds of grapes cost $4.47.

Hope i helped ya!!

8 0

2 years ago

Read 2 more answers