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GuDViN [60]
3 years ago
5

Simplify. 3^2+ (9-8/2)

Mathematics
2 answers:
Sergio039 [100]3 years ago
6 0

Answer: 14

<u>PEMDAS</u>

P: Parentheses

E: Exponets

M: Multiplcaction

D: Divison

A: Addition

S: Subtraction

PEMDAS can also be known as Please Excuse My Dear Aunt Sally

P: (9-8/2)

E: 3^2

M: 3*3

D: 8/2

A: 9+5

S: 9-8/2

<u>Multiply</u>

E: 3^2=3*3=9

M: 3*3=9

<u>Divide</u>

D: 8/2=4

<u>Subtract</u>

S: 9-4=5

<u>Add</u>

A: 9+5=14

Answer: 14

The reason why we didn't use P to get our answer because it would of messed up the steps. So instead we separated it by dividing 8/2 in D and 9-4-5 for S.

solmaris [256]3 years ago
3 0

Hi there! Hopefully this helps!

-----------------------------------------------------------------------------------------------------------

Answer: 14.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

First we calculate <u>3 to the power of 2</u> and get 9.

|

\/

9 + 9 - \frac{8}{2} = 14.

Now we add<u> 9 + 9</u> to get 18.

18 - \frac{8}{2} = 14.

Then, we<u> divide 8 by 2</u> to get 4.

18 - 4 = 14.

Then we subtract<u> 4 from 18</u> to get.....You guessed it,<u> 14</u>!

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vitfil [10]

First one:

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cos(B)=BC/AB=3/4.24

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Second one:

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8 0
3 years ago
Ann ran 7 miles on Monday, 6 miles yesterday, and 8 miles today. If she runs an unknown number of miles tomorrow, how many miles
Airida [17]

Answer:

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Step-by-step explanation:

It depends if its about the patterns

You could put a number such as five or nine so I just put up the equation to it

6 0
3 years ago
Charlize wants to measure the depth of an empty well. She drops a ball from a height of 3 feet into the well
pentagon [3]

Answer:

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Step-by-step explanation:

The height of the ball at a time of 3.1 seconds is given by Charlize's equation as ...

  h(3.1) = -16(3.1)^2 +3 = -150.76 . . . feet

The well is about 151 feet deep.

_____

<em>Comment on this measurement</em>

The speed of sound is sufficiently slow that it will make a difference in the time Charlize records. She would get a more accurate measurement if she were able to <em>see</em> the ball hit bottom.

5 0
3 years ago
A hungry college student just finished eating a large cheese and pepperoni pizza from​ Doug's Pizza Palace and felt there​ wasn'
maw [93]

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Step-by-step explanation:

  • Degrees of freedom is the number of values in the evaluation of a test statistic that are free to vary.

For t-statistic , the degree of freedom for a sample with sample size 'n' is given by :-

df=n-1

Given : Sample size : n-1

Then, the number of degrees of freedom the t-value will have :-

df=15-1=14

Hence, the t-value will have 14 degrees of freedom.

7 0
3 years ago
A resturant bill comes to 28.35. find the total cost if the tax is 6.25 percent and a 20 percent tip is left on the amount
olya-2409 [2.1K]
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6 0
3 years ago
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