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lyudmila [28]
3 years ago
7

What is the measure of the angle that is exterior to ∠S? What is the measure of the angle that is exterior to ∠R? What is the su

m of the triangle's exterior angles? A) 41°; 59°;90° B) 41°; 59°; 180° C) 131°; 101°; 360° D) 131°; 101°; 242°
Mathematics
1 answer:
VMariaS [17]3 years ago
6 0

Answer:

The answer is C.

Step-by-step explanation:

When you add all of the exterior of a triangle, you will end up with 360.

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The flagpole is 20 ft high and casts an 8 foot shadow, the oak tree casts a 12 foot shadow. How tall is the oak tree
Fudgin [204]
Answer: 4.8 ft

To answer this question you need to know how much shadow: actual height ratio. Flagpole is having 8 ft shadow with 20 ft actual height. The ratio should be= 8 ft: 20 ft= 0.4

Then multiply the ratio with the oak tree shadow. The equation would be:
0.4 x 12 ft= 4.8 ft  
7 0
3 years ago
How is mathematics done?​
Ad libitum [116K]

Answer:

Mathematics can be completed through the use of logical thinking and the use of equations to figure out various problems.

8 0
3 years ago
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Many Irish-Catholic and Chinese immigrants helped improve the infrastructure of the
alekssr [168]

Answer:

The Transcontinental Railroad

Step-by-step explanation:

Hope it helps you :)

5 0
2 years ago
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Quadrilateral ABCD has vertices A(1,0) B(5,0) C (7,2) D(3,2). Use slope to prove that ABCD is a parallelogram.
Galina-37 [17]

Answer:

AD \parallel BC

AB \parallel CD

Step-by-step explanation:

The vertices of quadrilateral ABCD are A(1,0) B(5,0) C (7,2) D(3,2).

The slope of side AB is

M_{AB}=\frac{0-0}{5-1} =\frac{0}{4}=0

The slope of side BC is

M_{BC}=\frac{2-0}{7-5} =\frac{2}{2}=1

The slope of side CD is

M_{CD}=\frac{2-2}{3-7} =\frac{0}{-4}=0

The slope of AD is

M_{AD}=\frac{2-0}{3-1} =\frac{2}{2}=1

AD \parallel BC

AB \parallel CD

We see that the opposite sides of the quadrilateral ABCD are equal.

Hence the quadrilateral is a parallelogram

4 0
3 years ago
The price of a car was decreased by 20% to £720.
Scilla [17]
Answer: 900
0.8 * x =720
x= 900
4 0
3 years ago
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