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3 years ago

How do you know the correct order in which to evaluate algebraic expressions

Mathematics

2 answers:

Colt1911 [192]3 years ago

8 0

Use the Order of Operations.

1 Parentheses
2 Exponents
3 Multiplication
4 Division
5 Addition
6 Subtraction

guajiro [1.7K]3 years ago

7 0

Order of operations : pemda
parentheses
exponents
multiply
divide
addition

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Distance between (20,15) and (10,25)

damaskus [11]

Answer:

14.14

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

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√(-10)² + (10)²

√(100) + (100)

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3 years ago

What is the 101st term for the sequence 13, 9, 5, 1... ?

NeX [460]

Step-by-step explanation:

a=13
d=13-9=4

${:}\longrightarrow$ $\sf S_n={\dfrac {n}{2}}\left [2a-(a-1)d\right]$

${:}\longrightarrow$ $\sf S_101={\dfrac {101}{2}}\left [26 (12)4\right]$

${:}\longrightarrow$ $\sf 50.5×1248$

${:}\longrightarrow$ $\sf S_101=63504$

${:}\longrightarrow$ $\sf a_n=a+(n-1)d$

${:}\longrightarrow$ $\sf a_101=13+(101-1)-4$

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3 years ago

Evaluate the expression when b= -2 and y=6 . b-9y

wolverine [178]

Answer:

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Step-by-step explanation:

Given

b - 9y ← substitute b = - 2 and y = 6 into the expression

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4 years ago

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Vsevolod [243]

Answer:

Step-by-step explanation:

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