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2 years ago

Write 105,000 in scientific notation.

Mathematics

2 answers:

Black_prince [1.1K]2 years ago

7 0

Answer:

(©) 1.05 x 10^5

Step-by-step explanation:

105,000.

Scientific notation is of the for a * 10^b

where a is a number between 1 and less than 10

move the decimal to make a be correct

1.05000

we moved it 5 places to the left, so b is 5

It is positive since we moved it to the left

1.05*10^5

We drop the zeros to the right of the 5

Murljashka [212]2 years ago

7 0

The answer will be C

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Help pls ;) <br> Find the geometric mean of 14 and 20

Kipish [7]

Answer:

The geometric mean of 14 and 20 is 16.73.

Step-by-step explanation:

It is required to find the geometric mean of 14 and 20. Let the numbers are :

a = 14 and b = 20

The geometric mean for two numbers is given by :

$M=\sqrt{ab}$

Plugging the values in above formula as follows :

$M=\sqrt{14\times 20}\\\\M=\sqrt{7\times 2\times 5\times 4} \\\\M=16.73$

So, the geometric mean of 14 and 20 is 16.73.

5 0

2 years ago

The equation for the circle below is x^2+y^2=64 what is the length of the circle’s radius

FromTheMoon [43]

Answer:

Step-by-step explanation:

The standard form of an equation of a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - center

r - radius

We have the equation:

$x^2+y^2=64\\\\(x-0)^2+(y-0)^2=8^2$

Therefore the center is (0, 0) and the radius r = 8

3 0

2 years ago

ILL GIVE YOU ALL MY POINTS FOR THIS EASY QUESTION!!!!!!

frutty [35]

Answer:

h = (S- 2πr²)/(2πr)

Step-by-step explanation:

<u>Given</u>

Formula S = 2πr² + 2πrh

<u>Solve for h</u>

S = 2πr² + 2πrh
2πrh = S - 2πr²
h = (S- 2πr²)/(2πr)

4 0

2 years ago

Can you answer these 3 questions for me plz

finlep [7]

A.
$1hr \: 15min = 75min$

$c = 0.22t = 0.22 \times 75 = 16.5$

cost is $16.50

B.

$26.40 = 0.22 \times t$

rearrange to solve for t:

$t = \frac{26.40}{0.22} = 120min$

C. This is the same as part B, only the rate changed

$t = \frac{26.40}{0.25} = 105.6min$

they ask for the greatest number of minutes, so we round down (take the floor of the value).

the answer is 105 minutes.

4 0

2 years ago

Read 2 more answers

Compound interest of $1000 is invested at 10% compounded continuously, the future value s at any time t in years is given by s=1

crimeas [40]

Answer: 6.93 years

Step-by-step explanation:

Given

Rate of interest is $r=10\%$

Future value is given by $s=1000e^{0.1t}$

For the investment to double itself, i.e. $s=2000$

$\Rightarrow 2000=1000e^{0.1t}\\\Rightarrow 2=e^{0.1t}\\\\\text{Taking log both sides}\\\\\Rightarrow \ln 2=0.1t\\\\\Rightarrow t=\dfrac{\ln 2}{0.1}\\\\\Rightarrow t=6.93\ \text{years}$

It takes around 6.93 years to double the investment.

8 0

2 years ago