Simplify [7+2(5 - 9)2]/[(4+1)2 - 3(22)

2 answers:

8 0

$\bf \cfrac{7+2(5-9)^2}{(4+1)^2-3(2^2)}\implies \cfrac{7+2(\stackrel{\downarrow }{-4})^2}{(\underset{\uparrow }{5})^2-3(\underset{\uparrow }{4})}\implies \cfrac{7+2(\stackrel{\downarrow }{16})}{\underset{\uparrow }{25}-3(4)}\implies \cfrac{7+\stackrel{\downarrow }{32}}{25-\underset{\uparrow }{12}} \\\\\\ \cfrac{39}{13}\implies \cfrac{3}{1}\implies 3$

recall PEMDAS, parentheses or groups first, from innermost to outermost, then exponents and so on.

svet-max [94.6K]3 years ago

4 0

Answer:

9/56 is your answer.

Step-by-step explanation:

[7+2(5 - 9)2]/[(4+1)2 - 3(22)=

[7+2(-4)2]/[(5)2-66]=

[7+2(-8)]/[10-66]=

(7+-16)/(-56)=

-9/-56=

9/56 is your answer.

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STatiana [176]

Answer:

The net worth does not change.

Step-by-step explanation:

Net worth is the sum of all of your assets minus the liabilities.

If you start off with 2,500 in your savings account, then you use the money to buy a car the net worth does not change. You started with a net worth of 2,500 because money in your savings account in considered an asset. You then use that money to buy a car which is an asset, and the car contributes to your net worth.

7 0

2 years ago

PLEASE HELP!

Wittaler [7]

Answer:

See below

Step-by-step explanation:

Use the formulae directly

For a cone, with base radius = r and height = h, here are the related formula

$\textrm{Slant height l} = \sqrt{r^2 + h^2}$ (1)

$\textrm{Lateral surface area} = \pi r l$

$\textrm {Base area} = \pi r^2$

$\textrm { Total Surface Area SA} = \textrm{Base Area + Lateral Area} = \pi r^2 + \pi rl = \pi r(r + l)$ (2)

$\textrm{Volume V = } (1/3) \pi r^2h$ (3)

Therefore directly plugging in the numbers in the above equations:

Note:

l = slant height in cm
SA = total surface area in sqcm
V = Volume in cubic cm

Figure(a)

r = 4, h = 8

$\textrm{l} = \sqrt{4^2 + 8^2} =\sqrt{80} = 8.944 \\\textrm{SA} = 4\pi(4 + 8.944) = 4\pi(12.944) = 162.66\\\textrm{V} = (1/3)\pi(4^2)(8) = 134.04$