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2 years ago

2x8-3^2+2? I know the answer but I don’t know how I got to it

Mathematics

2 answers:

nordsb [41]2 years ago

6 0

Answer:

9 or 27

Step-by-step explanation:

2x8 -3 ^2 + 2

2x8 -9 + 2

16 - 9 + 2

= 9

2 x 8 - 3^2 + 2

2 x 8 + 9 + 2

16 + 9 + 2

= 27

givi [52]2 years ago

6 0

Answer:

9 is the answer of your question

Step-by-step explanation:

2×8 -3²+2
16-9+2
18-9
9

Hope it is helpful to you

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2) simplify the expression completely assume (x > 0)

Sati [7]

Answer:

Step-by-step explanation:

the 2 square root terms can be combined under one large square root.

and the general multiplication factor of 2 remains on the outside.

2×sqrt(24x³ / 3x) = 2×sqrt(8x²) = 2×sqrt(4×2x²) =

2×2×sqrt(2x²) = 2×2×x×sqrt(2) = 4x sqrt(2)

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2 years ago

Valerie deposited $2000 into an IRA that grew to $5000 by retirement. If Valerie is currently in the 15% tax bracket and retired

sdas [7]

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3 years ago

Read 2 more answers

A chestnut falls out of a tree 45 feet above the ground. Use the vertical motion model, H=-16t^2+vt+s s to find how long it take

valentinak56 [21]

Answer:

1.7 seconds

Step-by-step explanation:

we have

$H=-16t^2+vt+s$

where

v is the initial velocity (in feet per second)

s represents the initial height (in feet)

In this problem we have

$v=0$ ---> because the object is dropped

$s=45\ ft$

substitute

$H=-16t^2+45$

Remember that

When the chestnut hit the ground the value of H is equal to zero

For H=0

$-16t^2+45=0$

solve for t

$16t^2=45\\t^2=2.8125\\t=\pm1.7\ sec$

therefore

The solution is t=1.7 sec

7 0

2 years ago

Will give 5 starts, thanks need this FAST!!!!!!!!!!!!!!!

Rus_ich [418]

Answer: i dont know how exact you want it but the answer is 31.4159265359

Step-by-step explanation: you have to double the raduis and multiple buy pie.

3 0

3 years ago

Find the value of x. help with geometry pls

Ivan

Answer:

Find the value of x:-

To find Y, use Pythagorean theorem:- $c^{2} =a^{2} +b^{2}$

$(2.1)^{2} =y^{2} +(1.4)^{2}$

$2.1^{2}=4.41$

$1.4^{2} =1.96$

$4.41=y^{2} +1.96$

subtract 1.96 from both sides

$2.45=y^{2}$

$y=1.5652$

Now, to find x:-

$x=y+y$

$= 1.5632+1.5652$

$x=3.1 \: ft$

<u>~OAmalOHopeO</u>

6 0

2 years ago