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2 years ago

I don't understand these questions, could someone please help??

Mathematics

1 answer:

Vlad [161]2 years ago

8 0

Answer:

1. 1. c=75 b=105 d=105

1. 2. b=104 a=76 c=76

2. 1. c=62 b=118 d=118

2. 2. d= 120 a=60 c=60

4. 1. a= 90 b= 45

4. 2. c=90 b=15

I do not know the last one.

Step-by-step explanation:

You do the first four equations by knowing that the number that you do know across from it is going to be the same. Then you add them and subtract it from 360 and multiply that number by 2 and get the number for the other spots.

Four the 4 questions, you know that the box in the conure means that it is 90, so whatever other number you know plus 90 minces 180 is the number for b.

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Answer:

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Step-by-step explanation:?

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2 years ago

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Varvara68 [4.7K]

Answer:

Step-by-step explanation:

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

==============================================

(-5)² - 2 × (-9) + 6 first Exponents

25 - 2 × (-9) + 6 next Multiplication

25 + 18 + 6 next Addition

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