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2 years ago

Picture below please help

Mathematics

2 answers:

Digiron [165]2 years ago

6 0

The first two angles are supplementary (adding up to 180)

The second two angles are complementary (adding up to 90)

yulyashka [42]2 years ago

5 0

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the types of Angles.

Supplementary angles sum up to make 180° and Complementary sum up to make 90° angles.

1.) angle AXC and CXD => SUPPLEMENTARY ANGLES

2.) angle BXC and CXD => COMPLEMENTARY ANGLES

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Find the area of the shaded region.

taurus [48]

Answer:

$426.96 \: {km}^{2}$

Step-by-step explanation:

Area of the shaded region = Area of triangle with base 40 km and height 27 km - Area of circle with radius (12/2) 6 km.

$= \frac{1}{2} \times 40 \times 27 - 3.14 \times {(6)}^{2} \\ \\ = 20 \times 27 - 3.14 \times 36 \\ \\ = 540 - 113.04 \\ \\ = 426.96 \: {km}^{2}$

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3 years ago

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3 years ago

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3 years ago

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8. Each letter of the word 'Mississippi' is written on an individual card and put in a bag. A card is

MAVERICK [17]

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Step-by-step explanation:

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3 years ago

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Consider the equations 15x + 9y = 45 and 9x + 8y = 12. Solve the system of equations using elimination. Give your solution to th

True [87]

Answer:

(-5.77, 6.46)

Step-by-step explanation:

15x + 9y = 45 ----------- i

9x + 8y = 12----------------ii

Multiply equation i by 9 the coefficient of x in equ ii

And equation ii by 15 the coefficient of x in equ I

9 x 15x + 9y = 45 ----------- i

15 x 9x + 8y = 12----------------ii

135x+81y = 405

135x+120y= 180

Subtract equation ii from I

135x-135x+81y-(+120y)= 405-180

-39y=225

y = 225/-39 = -5.77

Insert the value of y in equ i

15x + 9y = 45

15x+9(-5.77) = 45

15x-51.92=45

15x = 45+51.92

15x= 96.92

x = 96.92/15= 6.46

(x,y) = (-5.77, 6.46)

x = 6.92/15

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3 years ago