<img src="https://tex.z-dn.net/?f=x%20%7B%7D%5E%7B2%7D%20%20%2B%20140%20%5Ctimes%20%20%2B%202400%20%3D%206%20%5Ctimes%20" id="Te

3 years ago

xFormula1" title="x {}^{2} + 140 \times + 2400 = 6 \times " alt="x {}^{2} + 140 \times + 2400 = 6 \times " align="absmiddle" class="latex-formula">

Mathematics

1 answer:

ipn [44]3 years ago

3 0

Can you write it normally lol

Fr just use photomath

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Me ajudem com a 3º questão

Alisiya [41]

I can't read that language but I'll guess it says write a second degree equation then solve for n when d=10.

$10 = \dfrac{n(n-3)}{2}$

$20 = n^2 - 3n$

$n^2 - 3n - 20 = 0$

Answer: n² - 3n - 20 = 0

That doesn't factor so there is no integer n solution.

That means there are no polygons with 10 diagonals.

$n = \frac 1 2(3 \pm \sqrt{89})$

7 0

3 years ago

So if I buy something for $36.97 and the and buy something else for $9.48 what will be the Total all Together?

Paul [167]

Answer:

36.97+9.48

=$46.45

Step-by-step explanation:

hope it helps

5 0

3 years ago

Read 2 more answers

Does someone know the answer?

Drupady [299]

Answer:

i do not

know the awnser but c would be 720 multiplied by its self 3 times the converted

Step-by-step explanation:

8 0

2 years ago

I need help

marysya [2.9K]

Answer: Company C

Step-by-step explanation:

A: $150

B: $160

C: $140

D: $170

So Company C has the best rate.

6 0

3 years ago

Larry, Barry, Terry are saving their money for a trampoline that costs $340.

Flauer [41]

Answer:

Larry=X

Barry=112x

Terry=113x

L+B+T=322

x+112x++113x=322

226×=322

Larry saved $1.42

7 0

3 years ago