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2 years ago

How do you use the order of operations to simplify expressions with exponents

1 answer:

6 0

It could be PEMDAS.
That means solve by this order:
1). Parenthesis
2). Exponents
3). Multiplication
4). Division
5). Addition
6). Subtraction

To remember the order they say it like
this " Please Excuse My Dear Aunt Sally "

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A painter is using a 8-foot ladder to paint a house. The painter places the ladder 6 feet from the house. How high up the wall d

9966 [12]

Step-by-step explanation:

step 1. This is a right triangle where a^2 + b^2 = c^2 (c is the hypotenuse).

step 2. a^2 + 6^2 = 8^2.

step 3. a^2 = 64 - 36.

step 4. a^2 = 28.

step 5. a (the ladder height along the wall) = sqrt (28) where sqrt is the square root.

step 6. sqrt(28) = 2(sqrt(7)).

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2 years ago

If two lines are skew lines, then they are noncoplanar. True or false

Anika [276]

Answer:

Two lines that both lie in the same plane must either cross each other or be parallel, so skew lines can exist only in three or more dimensions. Two lines are skew if and only if they are not coplanar.

Step-by-step explanation:

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2 years ago

What is the slope of the line through the points (-4, 6) and (-3, -1)?

andreev551 [17]

Answer:

m= -7

Step-by-step explanation:

using the slope formula, plug in the variables and solve

m=rise/run

m=y2-y1 / x2-x1

(x1, y1) = coordinates of first point in the line

(x2, y2) = coordinates of second point in the line

4 0

2 years ago

Read 2 more answers

If a square has a perimiter of 40 yards what is the length of one side of the square

dimaraw [331]

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4 0

2 years ago

Hi can you help me ? what is 0.07 ?

riadik2000 [5.3K]

Answer:

I think it's zero point zero seven.

Step-by-step explanation:

6 0

2 years ago