All categories

3 years ago

Someone help please 1= 39 degrees 2: 40 degrees 3: 41 degrees 4: 42 degrees

Mathematics

1 answer:

ipn [44]3 years ago

6 0

Answer:

Step-by-step explanation:

This uses the sine law.

Sin(theta)/113 = sin(42)/120 Multiply both sides by 113

sin(theta) = 113*sin(42)/120

sin42 = 0.6691

sin(theta) = 113 * 0.6691 / 120

sin(theta) = 0.630008

theta = sin-1(0.63008)

theta = 39.1 Looks Like A

You might be interested in

Pierce is making a rectangular frame for a photo collage that has a perimeter of 72.2 72.2 inches. The length of the frame is 20

Allushta [10]

Answer:

$P = 2x+2y$ (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

$P-2y = 2x$

$\frac{P-2y}{2} =x$

And replacing we got:

$x = \frac{72.2 in -2*20.3 in}{2}= 15.8 in$

And the width for this case would be 15.8 in

Step-by-step explanation:

For this case we know that the photo is rectangular. Let's define:

x = the width, y= the length

And we know that the perimeter is given by:

$P = 2x+2y$ (1)

And we know that the lenght is y = 20.3. If we solve for x from equation (1) we got:

$P-2y = 2x$

$\frac{P-2y}{2} =x$

And replacing we got:

$x = \frac{72.2 in -2*20.3 in}{2}= 15.8 in$

And the width for this case would be 15.8 in

4 0

4 years ago

Kelsey is going to graph the ordered pairs that are represented by this table on a coordinate plane

gayaneshka [121]

Answer:

Step-by-step explanation:

Since there are 4 columns of x and y values the answer is 4.

3 0

3 years ago

2(x/8 + 3) = 7 + 1/4x what is x

malfutka [58]

Answer:

x1 = 2 - $\sqrt{5}$

x2= 2 + $\sqrt{5}$

Step-by-step explanation:

x/4 + 6 = 7 + 1/4x

(x^2 - 1)/4x = 1

x^2 - 1 = 4x

x^2 - 4x -1 = 0

x= (4+ $\sqrt{20}$ )/2 = 2 - $\sqrt{5}$

x= 2 + $\sqrt{5}$

5 0

3 years ago

Evaluate f(x)=2x-5 for x=3

Fiesta28 [93]

F(x)=2(3)-5
f(x)=6-5
f(x)=1

3 0

4 years ago

Which expression is the same as 10÷4? 110 of 4 4÷10 110×14 14 of 10

erica [24]

Answer:

1/4 of 10

Step-by-step explanation:

7 0

3 years ago