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3 years ago

(-5)^2-2x(-9)+6 Please show work and step by step.

Mathematics

1 answer:

Varvara68 [4.7K]3 years ago

5 0

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

43 + 6 = 49

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Answer:

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Step-by-step explanation:

Given

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2 years ago

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Step-by-step explanation:

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2 years ago

ZA and B are complementary angles. If m_A = (x – 15)° and m ZB = (x + 3)º, then find the measure of ZB.

BlackZzzverrR [31]

Answer:

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Step-by-step explanation:

Complementary angles add to 90 degrees

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