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3 years ago

7

Addinfg in scientific notation 9x10^3 +2.3x10^4=

1 answer:

Vladimir [108]3 years ago

4 0

Answer:

3.2 × 10^4

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

3.2 × 10 ^4

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A car rents for $250 per week plus $0.50 per mile.find the rental cost for a two-week trip of 500 miles for a group of three peo

Artyom0805 [142]

So 2 weeks mean
250x 2= 500
Then .50 per mile so 500 miles mean
.50 x 500= 250
In total it will be
500+250= 750

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3 years ago

What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid

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Answer:

the distance is 17

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F(x) = x5 – 8x4 + 16x3?

rodikova [14]

Answer:

Step-by-step explanation:

The first guy got it backwards

Thre first solution is 4

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3 years ago

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PLEASE HELP (100 POINTS)

Artyom0805 [142]

$\\ \rm\Rrightarrow f(x)=-5cos\dfrac{x}{2}+5$

Compare to standard equation of SHM

$\\ \rm\Rrightarrow y=Acos(\omega x+\phi)$

Here

Amplitude=A=-5

$\\ \rm\Rrightarrow \omega x=\dfrac{x}{2}$

$\\ \rm\Rrightarrow \omega=1/2$

Well the above one are for extra knowledge .

Solution:-

$\\ \rm\Rrightarrow 10=-5cos\dfrac{x}{2}+5$

$\\ \rm\Rrightarrow 10-5=-5cos\dfrac{x}{2}$

$\\ \rm\Rrightarrow 5=-5cos\dfrac{x}{2}$

$\\ \rm\Rrightarrow cos\dfrac{x}{2}=-1$

$\\ \rm\Rrightarrow \dfrac{x}{2}=cos^{-1}(-1)$

$\\ \rm\Rrightarrow \dfrac{x}{2}=\pi$

$\\ \rm\Rrightarrow x=2\pi$

So.

$\\ \rm\Rrightarrow x=2\pi+2\pi n$

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2 years ago

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2. Find the bigger solution of the equation x2 - 11x = 0.

pickupchik [31]

Answer:

$x\text{ = 11}$

Explanation:

Here, we want to find the bigger solution

We can start by factoring x as follows:

$\begin{gathered} x(x-11_)\text{ = 0} \\ x\text{ = 0 or x-11 = 0} \\ x\text{ = 0 or x = 11} \end{gathered}$

The bigger solution is x= 11

6 0

1 year ago