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ludmilkaskok [199]
3 years ago
9

(7x^2- 3y)^2 simplify

Mathematics
2 answers:
raketka [301]3 years ago
6 0

Answer:

49x^4-42x^2 y+9y^2

Step-by-step explanation:

Vedmedyk [2.9K]3 years ago
5 0

Answer:

49x^4-42x^2 y+9y^2

Step-by-step explanation:

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Bills car gets 30 miles to the go on. For every galon of gas it consumes his car runs 30 miles use this information to determine
jok3333 [9.3K]

Answer:

60

Step-by-step explanation:

30+30=60

5 0
3 years ago
Help please! i don't know what to do
Serhud [2]
I hope this helps you



9/9+18=x/x+10


9/27=x/x+10


1/3=x/x+10

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x=5


8 0
3 years ago
A circular running track is 1/4 of a mile long Elena runs this track completing each lap in 1/20 of an hour what is her speed
PSYCHO15rus [73]

Answer:

The speed is equal to 5\frac{mi}{h}

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

x------> the distance in miles

y-----> the time in hours

s----> the speed in mph

so

s=\frac{x}{y}

In this problem we have

x=(1/4)\ mi

y=(1/20)\ h

substitute

s=\frac{(1/4)}{(1/20)}=20/4=5\frac{mi}{h}

3 0
3 years ago
A restaurant advertises 256 types of nachos. how many topping ingredients must be available
Karolina [17]
Well, this depends on the number of topping ingredients you have for each serving of nachos. The general solution will be simply to add all the topping ingredients for each type. Assuming there is an average of 7 topping ingredients for every type, namely: cheese<span>, fried beans, sour cream, onions, jalapeños, salsa, and guacamole. Hence,

Topping Ingredients = 7*256 = 1,792</span>
3 0
3 years ago
Please help asap will mark brainliest
melisa1 [442]
The second one because since n is not negative then nothing will be in the denominator
7 0
2 years ago
Read 2 more answers
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