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iris [78.8K]
4 years ago
6

WORTH 20 POINTS

Mathematics
2 answers:
joja [24]4 years ago
4 0
\bf 4\sqrt{162}\qquad 
\begin{cases}
162=2\cdot 3\cdot 3\cdot 3\cdot 3\\
\qquad 2\cdot 3^4\\
\qquad 2\cdot (3^2)^2
\end{cases}\implies 4\sqrt{2\cdot (3^2)^2}\implies 4\cdot 3^2\sqrt{2}
\\\\\\
4\cdot 9\sqrt{2}\implies 36\sqrt{2}
postnew [5]4 years ago
3 0

I just did the assignment the correct answers are A,B and E.

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2) 2x + 3y= 11<br> -x-5y=-23
sergiy2304 [10]

Answer:

one solution (-2 ; 5)

Step-by-step explanation:

hello :   2x + 3y= 11 ...(*)

           -x-5y=-23.....(**)

by(**) : x= -5y+23

put this value into (*) :  2(-5y+23)+3y=11

-10y+46+3y=11

-7y = -35

y=5

but x= -5y+23

so :  x= -5(5)+23 =-2

4 0
3 years ago
The rate is 320 feet per hour, 320 feethour . The hiking team descended the mountain from 1 pm to 5 pm. The net change is a ____
deff fn [24]

Answer:

The correct answer is "decrease, 1,280 feet".

Step-by-step explanation:

The given values are:

Rate or speed,

= 320 feet per hour

1 pm to 5 pm means,

t = 5 - 1

 = 4 hours

Now,

The net change in distance will be:

⇒  \Delta D=-320\times 4 \ feet

⇒         =-1280 \ feet

Thus the above is the correct approach.

8 0
3 years ago
Rational or irrational?
mario62 [17]
The answer is irrational I believe. It’s not a decimal that just ends.
7 0
3 years ago
Read 2 more answers
Which line is the graph of -3x=y <br><br> A B Or C
nekit [7.7K]

Answer:

Line A

Step-by-step explanation:

8 0
3 years ago
In which different ways can 388 be written as the product of two positive integers? Choose all answers that are correct
Helen [10]

Answer: Everything except 3 * 129

Step-by-step explanation:

You can break 388 in half twice in order to find the answer.

Since 388/2 = 194, then 194 * 2 = 388

Since 388/4 = 97, then 97 * 4 = 388

Do note that 3 and 129 are both odd. Two odd factors can never make an even product. So that is out immediately.

Hope this helped a little bit, I tried to be quick with the explanation because I know how annoying those online things are. If you need anything explained more, just let me know.

4 0
1 year ago
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