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3 years ago

What does "PEMDAS" stand for?

2 answers:

8 0

P= parentheses or ()
E= exponents such as $x^{2}$
M= multiplying
D= division
A= Addition
S= Subtraction

Another popular acronym is BEDMAS, which is pretty much the same except for division and multiplication are switched and it uses the word Brackets to describe these: ().

Aliun [14]3 years ago

8 0

"Please Excuse Our Dear Aunt Sally"
A technique for remembering the order of operations.
<span>It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".</span>

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Solve. Use the strategy "work backward."

cestrela7 [59]

Let that be x

ATQ

$\\ \rm\Rrightarrow 3x-6/5=9$

Arrange accordingly to work backwards(Every thing is reversed)

$\\ \rm\Rrightarrow 9(5)+6/3=x$

$\\ \rm\Rrightarrow 45+6/3=x$

$\\ \rm\Rrightarrow 51/3=x$

$\\ \rm\Rrightarrow x=17$

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2 years ago

Check all solutions to the equation. If there are no solutions, check "None."x2=0A. 1B. -1C.0D. 10E. 4E None

Juli2301 [7.4K]

The given equation is,

$\begin{gathered} x^2=0 \\ x=0 \end{gathered}$

Thus, option (C) is the correct solution.

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2 years ago

Luiza is jumping on a trampoline. Ht models her distance above the ground (in m) t seconds after she starts

Damm [24]

Answer:

t=2.08 seconds.

Step-by-step explanation:

Well, in this example, H(t)=-0.6cos(2pi/2.5)t+1.5 should be equal to 1.2. If calculated, -0.6cos(0.8pi)t=1.2-1.5 which is equal to -0.6cos(0.8pi)t=-0.3, then cos(0.8pi)t=0.5. The value of cosine in terms of radians when it is equal to 0.5 is pi/3. So, cos(0.8pi)t=cos(pi/3). If simplified, (0.8pi)*t=5pi/3. pi's are cancelled out and t is calculated as 2.08333... If rounded to the nearest hundredth it is 2.08.

4 0

3 years ago

Suppose you choose a marble from a bag containing 4 red marbles, 2 white marbles, and 3 blue marbles. You return the first marbl

ira [324]

4/9*3/9= 12/81=4/27
You have a 4 in 27 chance of drawing a red then a blue.

8 0

3 years ago

Read 2 more answers

Help 20 points helpppppppp math helps 20 points no linos or imma report you.

bagirrra123 [75]

Answer:

Not a right triangle

Step-by-step explanation:

We can figure out if it is a right triangle or not by using the pythagorean theorem.

a^2 + b^2 = c^2

In this case a and b are 16 and 18

In order for it to be a right triangle, c has to equal 34, in this problem.

16^2 + 18^2 = c^2

= 580^2

= $\sqrt{580}$ = 24.0832

Since 24.0832 does not equal 34, this is not a right triangle

5 0

3 years ago