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MAXImum [283]
4 years ago
11

What is 12.9 rounded to 1 decimal place

Mathematics
1 answer:
Dvinal [7]4 years ago
6 0
The answer would be 12.9 because 12.9=12.90 and when you round the decimal place, the 0 would make it stay as 12.9
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Hi guys... I'm a foreigner... I've completed my high Schools...nd I'd like to know what should I do to get into MIT? Help me
Blizzard [7]

Answer:A strong academic foundation in high school contributes to your own development, improves your odds of getting into MIT, and helps you make the most of the Institute when you’re here.


Step-by-step explanation:

high school years include the following:

One year of high school physics

One year of high school chemistry

One year of high school biology

Math, through calculus

Two years of a foreign language

Four years of English

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6 0
3 years ago
What is the perimeter of a square with an area of 324 cm2?
andriy [413]

To find the perimeter we must first find the length of the sides. How to do this is shown below:

The formula for the area of a square is:

A = s²

Area = side²

We know that area (A) is 324

324 = s²

Now we must find the length of the side (s). To do this we must get rid of the square. To remove the square from s take the square root of both sides:

√324 = √s²

18 = s

Each side of the square is 18 cm

Now we can find the perimeter of the square using the formula:

P = 4s

P = 4(18)

P = 72

The perimeter of a square with an area of 324 cm² is C. 72 cm

Hope this helped!

~Just a girl in love with Shawn Mendes  

4 0
3 years ago
Simplify the expression: 8(c-5)
Dimas [21]

Answer: 8+(-40)

Step-by-step explanation:

You’re using distributive property you would multiply 8 and c which equals 8 because c=1 and then you would multiply 8•(-5) which would be -40 so your answer would be 8+(-40)

7 0
4 years ago
I need help finding the area of this shape can you please help
BabaBlast [244]

Answer: 139.27

Step-by-step explanation:

So let find the area of the black swuare the length is 10 and the widith is 10, using bxh the area is 100. Now let find the aea of the semi-circle. The area of a fill circle is pi radius squared so a semi circle area will be 1/2( pi radius squared). The radius is 5 so we can calculate 1/2 of 25 pi equal = 39.27. Now let add the areas: 100+39.27=139.27.

8 0
3 years ago
Now we are testing to see whether taking a vitamin supplement each day has significant health benefits. There are no (known) har
ZanzabumX [31]

Answer:

Concluding that people should take vitamin supplement each day when they don't help.            

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

Taking a vitamin supplement each day has significant health benefits and does not have any harmful side effects.

Null hypothesis:

Taking a vitamin supplement each day does not have have significant health benefits.

Alternate hypothesis:

Taking a vitamin supplement each day have have significant health benefits.

Type I error:

  • It the error of rejecting the a true null hypothesis.

So error I for this situation would be concluding that people should take vitamin supplement each day when they don't help.

3 0
3 years ago
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