How do you do this prolem the correct way and how do you do the floors

Mathematics

1 answer:

creativ13 [48]2 years ago

7 0

There is nothing there to work with

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How do you solve this problem

Kryger [21]

Answer:

$sin(A) = \frac{21}{{29} }$

$cos(A)=\frac{20}{29 }$

$tan(A)=\frac{21}{20}$

$sin(C) = \frac{20}{{29} }$

$cos(C)=\frac{21}{29 }$

$tan(C)=\frac{20}{21}$

Step-by-step explanation:

So first we need to make sure we know the trig identities to solve this problem.

$sin(\alpha )=\frac{opposite}{hypotenuse}$
$cos(\alpha )=\frac{adjacent}{hypotenuse}$
$tan(\alpha )=\frac{opposite}{adjacent}$

Here we only have two legs of the triangle, so we will need to use the Pythagorean Theorem a² + b² = c² to solve for the missing leg, the hypotenuse in this case.

Solving for the hypotenuse, c, we get $c = \sqrt{a^{2} +b^{2} }$
Here a = 20 and b = 21, so plugging in these values to the equation we get: $c= \sqrt{(20)^{2}+(21)^{2} } =\sqrt{400+441} =\sqrt{841}=29$

Now we can use the trig identities to figure out the missing values for the problem

$sin(A) = \frac{21}{{29} }$
$cos(A)=\frac{20}{29 }$
$tan(A)=\frac{21}{20}$
$sin(C) = \frac{20}{{29} }$
$cos(C)=\frac{21}{29 }$
$tan(C)=\frac{20}{21}$

4 0

2 years ago

a golf ball can travel 170mph. This is 10/7 times the fastest speed recored for a hockey puck. What is the recored speed for a h

olga nikolaevna [1]

A golf ball can travel 170 mph. This is 10/7 times the fastest speed recorded for a hockey puck. What is the record speed for a hockey puck? Make an equation and solve.

The speed of hockey puck = x

(10/7)x = 170 
10x = 1190 
x = 119 mph

5 0

2 years ago

A roll of carpet that contains 250 yd of carpet will cover how many rooms if each room requires 7 3/4 yards of carpet?

iren [92.7K]

Answer: 32 room

Step-by-step explanation:

$7\frac{3}{4} =\frac{4(7)+3}{4} =\frac{28+3}{4} =\frac{31}{4}=7.75$