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Lisa [10]
2 years ago
14

The sum of the measures of the angles in a triangle is 1800. If two of the angles are 72 and 76 degrees, what is the missing ang

le measure?
Mathematics
1 answer:
ehidna [41]2 years ago
4 0

Answer:

32

Step-by-step explanation:

72 + 76 = 148

180 - 148 = 32

I hope this helps!!

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Find the area of Pentagon ABCDE in which BL perpendicular to AC, CM perpendicular to AD, EN perpendicular to AD such that AC = 8
deff fn [24]

Answer:

Area ABCDE = 82 cm²

Step-by-step explanation:

ABCDE = ΔEAD + ΔDAC + ΔCAB

ABCDE = (12×5)/2 + (12×6)/2 + (8×4)/2 = 30+36+16 = 82

6 0
3 years ago
Hailey sold 20 tickets to the school play for a total of 225$.Early bird tickets were 10$ and regular priced tickets were 15$.Wr
dlinn [17]

Answer:

The system of equation are \left \{ x+y=20} \atop {10x+15y=225}} \right.

The number of early bird tickets are <u>15</u> and of regular tickets are <u>5</u>.

Step-by-step explanation:

Given,

Total number of tickets = 20

Total amount = $225

Solution,

Let the number of early bird tickets be 'x'.

And also let the number of regular tickets be 'y'.

Now total number of tickets is the sum of number of early bird tickets and number of regular tickets.

So framing in equation form, we get;

Total number of tickets = number of early bird tickets + number of regular tickets

x+y=20\ \ \ \ equation\ 1

Again, Total amount is the sum of number of early bird tickets multiplied with price of each ticket and number of regular tickets multiplied with price of each ticket.

So framing in equation form, we get;

10x+15y=225\ \ \ \ \ equation\ 2

Hence the system of equation are \left \{ x+y=20} \atop {10x+15y=225}} \right.

Now we solve the equation by multiplying equation 1 by 10, and get;

10(x+y)=20\times10\\\\10x+10y=200\ \ \ \ equation\ 3

Now subtracting equation 3 from equation 2, we get;

(10x+15y)-(10x+10y)=225-200\\\\10x+15y-10x-10y=25\\\\5y=25\\\\y=\frac{25}{5}=5

On substituting the value of 'y' in equation 1, we get;

x+y=20\\\\x+5=20\\\\x=20-5=15

Hence The number of early bird tickets are <u>15</u> and of regular tickets are <u>5</u>.

3 0
3 years ago
Please help me find the measure to side c and the process to solve the problem
jeka94

Answer:

c = 43

Step-by-step explanation:

sin theta = opposite side / hypotenuse

sin 28 = 20/c

Multiply each side by c

c sin 28 = 20/c *c

c sin 28 = 20

Divide each side by sin 28

c sin 28 /sin 28 = 20/sin 28

c = 42.60108936

To the nearest whole number

c = 43

4 0
3 years ago
The tables below show four ratios of measurements.
Mkey [24]

Answer:D.

Step-by-step explanation:

yards to feet equals 0.3 repeating

Pounds to ounces equals 0.0625

Gallons to pints equals 0.125

Centimeters to millimeters equals 0.1

So d is the right answer

3 0
3 years ago
in triangle ABC, m ZA=55, m Z B=30, and a= 8. which equation should you solve to find b? PLEASE HELP IM BEING TIMED!!!!
Nina [5.8K]

Answer:

Answer choice B

Step-by-step explanation:

Law of sines

6 0
2 years ago
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