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erastovalidia [21]
3 years ago
7

Is it Proportional or nonproportional and and explain why

Mathematics
1 answer:
mariarad [96]3 years ago
4 0

Answer:

They're both proportional because everything's moving at a constant rate. Think of it this way: If a car travels for 50 miles per hour and the speed never changes, it's proportional. If that car at hour 1 traveled at 50mph and then at hour 2 traveled at 60mph, it would be nonproportional since the speed is increasing and changing.

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Find the product. 87.8 x 2.8 (
bearhunter [10]

Answer:

245.84

Step-by-step explanation:

i hope this helps

7 0
3 years ago
Read 2 more answers
The market bought grapes for $0.87 a pound and sold them for $1.15 a pound. What is the percent of increase rounded to the neare
DochEvi [55]
If A is the buying value & B the selling value, then the increase =

Increase = (B-A)/A = (1.15 - 0.87)/0.87 = 0.3218 or 31.18%

4 0
4 years ago
Which expression is equivalent to (4+3i)^2+(6-I)^2
zhenek [66]

Answer:

\large\boxed{(4+3i)^2+(6-i)^2=42+12i}

Step-by-step explanation:

(4+3i)^2+(6-i)^2\qquad\text{use}\ (a\pm b)^2=a^2\pm2ab+b^2\\\\=4^2+2(4)(3i)+(3i)^2+6^2-2(6)(i)+i^2\\\\=16+24i+9i^2+36-12i+i^2\qquad i=\sqrt{-1}\to i^2=-1\\\\=16+24i+9(-1)+36-12i+(-1)\\\\=16+24i-9+36-12i-1\qquad\text{combine like terms}\\\\=(16-9+36-1)+(24i-12i)\\\\=42+12i

8 0
4 years ago
0.135 written as a fraction is _____.<br> 5/37<br> 27/100<br> 27/200
Hunter-Best [27]
0.315 is the written as a fraction.
convert to fraction
=> 0.315 / 1000
=> 315 / 1000
=> 63 / 200
Thus in the given choices, the answer is not in there.

5 0
3 years ago
What is the correct classification of 7x^2+9x+4
sammy [17]
<span>Trinomial: 3 term polynomial </span>
<span>examples: </span>
<span>2x^5 − 3x^2 + 5 </span>

<span>Answer: Trinomial</span>
3 0
3 years ago
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