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3 years ago

PLEASE HELP!!!!!!! THIS IS TIMED!!! SOMEONE HELP ME PLEASE!!!!!!

Mathematics

2 answers:

enot [183]3 years ago

6 0

Answer:

a is correct

Step-by-step explanation:

linar function goes in a straight line on a gragh and a is the only one that would do so

olga55 [171]3 years ago

4 0

The Answer should be : a

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Tonys bill at the restaurant was $9.52. If he wants to leave a 20% tip, how much is that?

postnew [5]

Answer:

11.42 dollars

Step-by-step explanation: since you are adding a percentage turn 20% into a decimal. if you do this you will get .2. Next, multiple .2 by 9.52 and you will get 20% of 9.52. Now add this value to 9.52 and you will get 11.42 dollars.

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3 years ago

Solve x: 3x-7 = 5x+13 Solve x: 7-3x = 5x+13

Svetach [21]

First you need to combine like terms
7-3x= 5x+13
step 1 add 3x
7=8x+13
step 2 subteact 13
-6=8x
step 3 divide both sides by two
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3 years ago

Read 2 more answers

Evaluate C(n, n). A. 0 B. 1 C. n

horrorfan [7]

$C(n,n)=\dfrac{n!}{n!(n-n)!}=\dfrac1{0!}=\dfrac11=1$

In other words, how many ways are there to choose $n$ objects from a total of $n$ objects? Just one; take all of them at the same time.

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3 years ago

Brian made a tasty burger. The diameter of the burger was 5 cm. What was the area of the burger?

Sindrei [870]

19.63cm2
Is the area of the burger!

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3 years ago

If Sin 3x= Cos (x-60), find the value of x

Kamila [148]

Answer:

x = 15

Step-by-step explanation:

Assuming 3x and x-60 are in degrees, you can use:

cos(a) = sin(a+90)

To rewrite the equation as:

sin(3x) = sin(x-60+90)

sin(3x) = sin(x+30)

3x = x+30

2x = 30

x = 15

But, solving 3x = x+30 which simplifies to x=15 is not the only solution to this equation, as you can see in below picture. Finding all solutions is a bit more work, but maybe that is not required in your case.

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3 years ago