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Viktor [21]
3 years ago
10

If angle 2 measures 155 degrees in the image below, what is the measurement of angle 1?

Mathematics
1 answer:
kumpel [21]3 years ago
6 0

Answer:

diagram of truss with some angles missing

What are the measures of the angles located at positions a, b, & c? Note: the figure is symmetrical on the vertical through angle b.

The large triangle is an isosceles triangle. The two angles on the base are equal. Angle a = 35°

We now know two angles in the largest triangle. The third angle, angle b must add to these to make 180°.  

35° + 35° + b = 180°

b = 180° - 70°

b = 110°

We now know two angles in a quadrilateral. The two unknown angles, including angle c are equal. All four angles add up to 360°.  

2c + 110° + 120° = 360°

2c = 360° - 230°

2c = 130°

c = 65°

Step-by-step explanation:

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Find the value of each variable.
DaniilM [7]

Answer: x = 143 degrees, y = 37 degrees and z = 143 degrees

Step-by-step explanation: First of all, looking at the line where x is situated,

37 + x = 180 {Sum of angles on a straight line equals 180}

Subtract 37 from both sides of the equation

x = 143

Next, looking at the line where y is situated, we observe that angle y is opposite of angle 37. Opposite angles are equal, therefore

y = 37

Alternatively, since angles x and y lie on the same line, and x has been calculated as 143, then

y + x = 180

y + 143 = 180

Subtract 143 from both sides of the equation

y = 37

Also looking at the line where angle z is situated, angle z is opposite angle x. Opposite angles are equal. Therefore z = 143.

Alternatively angle z and angle 37 lie on the same line. Therefore,

z + 37 = 180

Subtract 37 from both sides of the equation

z = 143

So all three variables are

x = 143, y = 37 and z = 143

8 0
3 years ago
The potential in a region between x = 0 and x = 6.00 m is V = a + bx, where a = 15.4 V and b = -5.10 V/m.
Minchanka [31]

Answer:

V(0)=15.4\\V(3)=0.1\\V(6)=-15.2

Step-by-step explanation:

The potential in a region between x = 0 and x = 6.00 m is V = a + bx.

Put a = 15.4 V and b = -5.10 V/m.

So, V=15.4-5.10x

To find: Potential at x =0, 3, 6

Solution:

Potential at x = 0:

V=15.4-0=15.4

Potential at x = 3:

V=15.4-5.10(3)=15.4-15.3=0.1

Potential at x = 6:

V=15.4-5.10(6)=15.4-30.60=-15.2

Therefore,

V(0)=15.4\\V(3)=0.1\\V(6)=-15.2

7 0
4 years ago
Berto has $12 to put gas in his car. If gas cost $3.75 per gallon, which ordered pair relating number of gallons of gas, x, to t
aleksley [76]

Answer:

(3.2,12)

Step-by-step explanation:

Since we have given that

Total cost of the gas put in his car = $12

Cost of gas per gallon = $3.75

Let the total cost of the gas be 'y'.

Let the number of gallons of gas be 'x'.

According to question, number of gallons of gas is given by

So, the number of gallons is 3.2 approximately.

Hence, the required coordinate pair is given by

Read more on Brainly.com - brainly.com/question/508898#readmore

I hope this is correct ...

8 0
3 years ago
Read 2 more answers
Write the equation of a line parallel to the line y = 2x that passes through -2,-1
maksim [4K]

Answer:

y = 2x + 3

Step-by-step explanation:

A line parallel to y = 2x has exactly the same slope but a different y-intercept, b.

Start with y = mx + b, and replace m with 2, y with -1 and x with -2:

-1 = 2(-2) + b, or

-1 = -4 + b.

Then b = 3, and the desired equation is y = 2x + 3

7 0
3 years ago
Read 2 more answers
Your final bill is $51.28. This includes a 12% tip. What was the bill without tax?
Roman55 [17]
51.28
———- = 112
———
100
X
X=


X=$45.79
6 0
4 years ago
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