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julia-pushkina [17]
3 years ago
8

Need help with this question​

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
6 0

Answer:

4n^2 - 3n + 7

Step-by-step explanation:

Area is length x width. If the width is 5n^2, we have to factor that out of each variable of the area

Area: 20n^4 - 15n^3 + 35n^2

20n^4 divided by 5n^2 = 4n^2

-15n^3 divided by 5n^2 = -3n

35n^2 divided by 5n^2 = 7

So the length is 4n^2 - 3n + 7

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Someone help, I just need the answers, no explanation or non of that
liraira [26]

Answer:

5). x = 15

7). JL = 78

Step-by-step explanation:

We can solve these problems with the help of midsegment theorem.

Midsegment theorem:

"Segment joining midpoints of two sides of a triangle is parallel and half the measure of third side of the triangle"

Question 5

8x - 23 = \frac{1}{2}(10x+44)

8x - 23 = 5x + 22

8x - 5x = 22 + 23

3x = 45

x = 15

Therefore, x = 15 is the answer.

Question 7

Since, MN is the midsegment,

MN = \frac{1}{2}(JL)

5x - 16 = \frac{1}{2}(4x+34)

5x - 16 = 2x + 17

5x - 2x = 17 + 16

3x = 33

x = 11

Therefore, Length of JL = 4(11) + 34

                                        = 44 + 34

                                        = 78 units

5 0
3 years ago
What best describes the expression 6,y ?​
Gennadij [26K]

Answer:

cool

Step-by-step explanation:

8 0
4 years ago
1200/180 = <br><br><br><br><br> (can someone please help me I'm desperate)
ASHA 777 [7]

Using a calculator, 1200/180 = 6.67 approximately

If you use long division, then you'll get what you see in the diagram below

The 6's go on forever after the decimal point, but if you round to two decimal places, then you'll get that approximate value of 6.67

---------------

If you want a remainder, then 1200/180 = 6 remainder 120

You can think of it like you having 1200 cookies and 180 friends. Each friend will get 6 whole cookies and there will be 120 left over as the remainder.

8 0
4 years ago
The ratio of kangaroos to koalas in the Australian zoo is 6 to 8 . If there are 132 koalas in the zoo how many kangaroos are in
dolphi86 [110]

Answer:

99

Step-by-step explanation:

set it up as a proportion 6/8 = x/132. then solve

8 0
3 years ago
What is the hypotenuse of a triangle with a leg that is 3 m long and another leg that is 6 m long?
jeka57 [31]

Answer: 3.6m

9m times 40m which equals 360m, then divide it by the 100 meters length and it will become = 3.6m

Step-by-step explanation:

Hope this helps. Byeeeeee have a good weekend!!!!!!! and Day!!!!!!111

4 0
3 years ago
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