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Leto [7]
3 years ago
11

Simplify the following 20 1/4 - 9 1/2 + 11

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
3 0

Answer:

21 3/4

Step-by-step explanation:

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Answer number 16 about scientific notation please:)
kotegsom [21]

Answer:

= 4.32 × 10^4

Step-by-step explanation:

= 4.32 × 10^4

(scientific notation)

= 4.32e4

(scientific e notation)

= 43.2 × 10^3

(engineering notation)

(thousand; prefix kilo- (k))

In scientific notation, a large number is converted to an equivalent decimal number between 1 and 10, multiplied by 10 raised to some power. Very small numbers are converted to an equivalent decimal number between 1 and 10, multiplied by 10 raised to some negative power.

6 0
3 years ago
Which relation is a function?
xz_007 [3.2K]

Answer:

I see this

"Which relation is a function?

A {(-3,4),(-3,8),(6,8)}

B {(6,4),(-3,8),(6,8)}

C {(-3,4),(3,-8),(3,8)}

D {(-3,4),(3,5),(-3,8)}"

So the answer is none of these.

Please make sure you have the correct problem.

Step-by-step explanation:

A set of points is a function if you have all your x's are different.  That is, all the x's must be distinct. There can be no value of x that appears more than once.

If you look at choice A, this is not a function because the first two points share the same x, which is -3.

Choice B is not a function because the first and last point share the same x, which is 6.

Choice C is not a function because the last two points share the same x, which is 3.

Choice D is not a function because the first and last choice share the same x, which is -3.

None of your choices show a function.

If you don't have that choice you might want to verify you written the problem correctly.

This is what I see:

"Which relation is a function?

A {(-3,4),(-3,8),(6,8)}

B {(6,4),(-3,8),(6,8)}

C {(-3,4),(3,-8),(3,8)}

D {(-3,4),(3,5),(-3,8)}"

7 0
4 years ago
Write an algebraic expression that models each word phrase four more than a number b
Alisiya [41]
The answer would be the first choice 4+b
5 0
3 years ago
Find the area of the regular polygon. Round to the nearest tenth if<br> necessary.<br> 7.5<br> 5.1
zalisa [80]

Answer:

that will be 25 if you put 30 in the thing

8 0
3 years ago
2x^(2/3)+5x^(2/3)=686
mrs_skeptik [129]

Answer:

Step-by-step explanation:

4 0
3 years ago
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