All categories

2 years ago

Find the unknown side length x. Write your answer in simplest radical form

Mathematics

1 answer:

Degger [83]2 years ago

5 0

Answer:

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 30² = 50²

x² + 900 = 2500 ( subtract 900 from both sides )

x² = 1600 ( take the square root of both sides )

x = $\sqrt{1600}$ = 40 → B

You might be interested in

The price of a coffee machine is £86.00. The price is going to increase by 20% a) What is the multiplier for a 20% increase? b)

Vlad1618 [11]

Answer:

86 * 0.2 = 17.2

17.2 + 86 = 103.2

Step-by-step explanation:

A) the multiplier is 0.2

B) The price is 103.2

6 0

3 years ago

Find the area of the trapezoid below.

kvasek [131]

18 cm doing the same thing rn

3 0

3 years ago

30 is what percent of 90? 30% 40% 60%

kupik [55]

Answer:

i got 33.33 but um i think it is 30%

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The value of (32)⅕ + (-7) + (81)½ is

Brrunno [24]

Answer:

hi pls Mark my answer in brainlist and follow me

6 0

2 years ago

Read 2 more answers

A hotel wants to put a fence around a circular spa. The radius of the spa is feet. If the fence is built along the immediate edg

MariettaO [177]

For this case we must find the perimeter of the fence, in a circular way, knowing that the perimeter of a circle is given by:

$P = 2 \pi*r$

Where "r" represents the radius of the circle, in this case $r = \frac {5} {\sqrt {2} -1}$

Substituting in the perimeter equation we have:

$P = 2 \pi * \frac {5} {\sqrt {2} -1}$

Rationalizing we have:

$P = \frac {2 \pi * 5 (\sqrt {2} +1)} {(\sqrt {2} -1) * (\sqrt {2} +1)}\\P = \frac {2 \pi*5 \sqrt {2} +2 \pi*5} {2-1}\\P = 10 \pi \sqrt {2} +10 \pi$

Taking out common factor $\pi$ :

$P = (10 \sqrt {2} +10) \pi$

Answer:

$P = (10 \sqrt {2} +10) \pi\ feet$

Option C

3 0

3 years ago