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USPshnik [31]
2 years ago
5

Find the number that makes the ratio equivalent to 90:18. (blank):2

Mathematics
2 answers:
Novosadov [1.4K]2 years ago
8 0

Answer:

may be this

90x 18y or 10 ;2

Annette [7]2 years ago
3 0
10

90:18 = x:2
18/2=9
90/9 = 10
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Find the area of the figure. Round your answer to the nearest hundredth, if necessary. (12cm)
Brilliant_brown [7]

Answer:

The answer is 56.52 square centimeters

Step-by-step explanation:

The area of a circle is Pi R^2 so that means the area of a semi circle is half of that which is Pi R^2/2

since diameter is 12, radius = 12/2 = 6

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3 0
2 years ago
H(x) = ax^2 +1<br> Find the value of a when h(-2) = 21.
blagie [28]

Answer:

a = 5

Step-by-step explanation:

Solving h(-2) = 21:

h(-2) = 21 \\ a(-2)^2 +1 = 21 \\ a(4) +1 = 21 \\ 4a +1 = 21 \\ 4a +1 -1 = 21 -1 \\ 4a = 20 \\ \frac{4a}{4} = \frac{20}{4} \\ a = 5

4 0
2 years ago
In which set(s) of numbers would you find in the number 733
Genrish500 [490]
<span>733 can be expressed as all from the option except option A)

So, the answer would be:
B) natural number 
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D) irrational number
E) integer
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Hope this helps!</span>
5 0
3 years ago
1 + 1 =<br><br>A- 3<br>B- 2<br>C- 1<br>D- 4​
aliina [53]

Answer:

2

Step-by-step explanation:

because thats what I learned

5 0
3 years ago
Read 2 more answers
I do not understand this im lost
mote1985 [20]
In such type of questions, all that you are supposed to do is, use basic mathematics to eliminate any one of the given two variables. Check out the equations if in case you can multiply any of the given ones with a -1 and add the two equations,eliminating one of the variables.
7 0
3 years ago
Read 2 more answers
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