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3 years ago

please help i need to pass this year use the Pythagorean theorem find the missing length a=7 b=11 c= ?

2 answers:

7 0

Pythagorean theorem formula is a^2 + b^2 = c^2

7^2 + 11^2 = 170

You will get the value of c by square-rooting 170

Therefore, the answer is √170

harina [27]3 years ago

3 0

There are actually 2 possibilities here:

1) a and b are the shortest 2 sides, and c is the longest side, and we assume that this is a right triangle. Then 7^2 + 11^2 = c^2, or c^2 = 49 + 121 =170.
c is then sqrt(170) (answer)

2) b is the hypo and a and c are the 2 legs. Then 11^2 = 7^2 + c^2, and
121-49 = c^2, so that c = sqrt(72), or sqrt(36)*sqrt(2) = 6*sqrt(2) (answer)

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3 years ago

Read 2 more answers

A plane traveling with the wind travels 900 miles in 5 hours. the return trip is against the wind and takes 9 hours. find the ra

Aneli [31]

Using the relation between velocity, distance and time, it is found that:

The rate of the plane in still air is of 140 mph.

The rate of the wind is of 40 mph.

<h3>What is the relation between velocity, distance and time?</h3>

Velocity is <u>distance divided by time</u>, that is:

$v = \frac{d}{t}$

A plane traveling with the wind travels 900 miles in 5 hours, hence:

$v_a + v_w = \frac{900}{5}$

$v_a + v_w = 180$

The return trip is against the wind and takes 9 hours, hence:

$v_a - v_w = \frac{900}{9}$

$v_a - v_w = 100$

From the first equation, we have that:

$v_w = 180 - v_a{/tex]Replacing on the second:[tex]v_a - v_w = 100$

$v_a - 180 + v_a = 100$

$2v_a = 280$

$v_a = 140$

[tex]v_w = 180 - 140 = 40{/tex]

Hence:

The rate of the plane in still air is of 140 mph.

The rate of the wind is of 40 mph.

More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569

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2 years ago

Write ratio simplest terms 48/24

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3 0

3 years ago

URGENT

Stolb23 [73]

Answer:

We can use the sine law to find h. First, we determine the angle between the line of sight and h:

180 - 90 - 39 = 51 degrees

The sine law states that the ratio of one triangle's angle to the opposite side's length is the same as another angle to its opposite side's length, so we can solve for h as follows:

h/sin(39) = 500/sin(51)

h = 500*sin(39)/sin(51)

When we round to the nearest whole number, we get h = 405 ft.

7 0

3 years ago