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saveliy_v [14]
3 years ago
7

How do you find measure a and c

Mathematics
2 answers:
astra-53 [7]3 years ago
5 0
You can use the measure of 112 on the similar shape to find b, as they are same side exterior angles. From there, you can find both a and c, because a/b and b/c are supplementary angles. 

a = 68 degrees

c = 68 degrees
Paladinen [302]3 years ago
5 0
So you know one angle, which is 112.  The angle to the left of 112 can be found by calculating 180 - 112, because together they create a straight angle, which is always 180 degrees. 112 plus 68 equals 180, so we know the side to the left of 112 is 68 degrees.

The given angle is equal to angle b because they're corresponding angles. We now know that angle b is 112 degrees, and angle c is 68 degrees because it's the same as the other angle.

Angle a is also 68 degrees, because it can also combine with angle b to make a 180 degree angle just like angle c can. 
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An opaque cylindrical tank with an open top has a diameter of 3.25 m and is completely filled with water. When the afternoon Sun
kicyunya [14]

Answer:

10.69

Step-by-step explanation:

We must first know that the angle of refraction is given by the following equation:

n_water * sin (A_water) = n_air * sin (A_air)

where n is the refractive index, for water it is 1.33 and for air it is 1.

The angle (A) in the air is 22.8 °, and that of the water is unknown.

Replacing these values we have to:

1.33 * sin (A_water) = 1 * 0.387

sin (A_water) = 1 * 0.387 / 1.33

A_water = arc sin (0.2907) = 16.9 °

now for the tank depth:

h = D / tan (A_water)

D = 3.25

Replacing

h = 3.25 / tan 16.9 °

h = 10.69

Therefore the depth is 10.69 meters.

6 0
3 years ago
What is the slope of the line x + 6y= 12
Lubov Fominskaja [6]

x + 6y = 12

You want the y-value to be on one side of the equation, so you have to subtract the x-value from both sides.

6y = -x + 12

Next, you divide both sides by 6, so that the y-value will be by itself.

y = - \frac{1}{6} + 2

We know that the slope or the 'm' value is located before the x-value based on y = mx +b, therefore the slope is - \frac{1}{6}

5 0
3 years ago
Evaluate <br> 15+ (29-13)=
leonid [27]
The answer is 31
29 - 13 is 16
16 + 15 is 31
6 0
3 years ago
Mike walks ½ mile in 30 minutes. What is his unit rate in miles per hour
Mars2501 [29]

Answer:

1 mile per hour

Step-by-step explanation:

you just double it

6 0
3 years ago
Read 2 more answers
A half-acre building lot is five times as long as it is wide. What are its dimensions?
Gnoma [55]

we know that

A half-acre is equal to----------> 2,023.43\ m^{2}

Let

x---------> the length side of the building lot

y--------> the width side of the building lot

A------> Area of the building lot

x=5y-------> equation 1

A=2,023.43\ m^{2}

A=x*y

2,023.43=x*y --------> equation 2

substitute equation 1 in equation 2

2,023.43=[5y]*y

5y^{2}= 2,023.43\\y^{2}= 404.686\\y= 20.11\ m

<u>Find the value of x</u>

x=5y---> x=5*20.11--> x=100.55 m

therefore

<u>the answer is</u>

the dimensions of the building lot are 100.55 m* 20.11 m

6 0
3 years ago
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