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Dvinal [7]
3 years ago
9

123,456,789x123,456,789=

Mathematics
1 answer:
Flura [38]3 years ago
8 0

Answer:

123,456,789x123,456,789= (123,456,789)^2= 152415788*10^16

can i have brainliest please

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Perform the following operations and write the answers and in radical form
Scorpion4ik [409]

The given expression is

8^{1/2} +16^{1/4}-12^{1/2}+81^{1/4}

We can write 8 as cube of 2, 16 ad fourth power of 2, 12 as square of 2 times 3 and 81 as fourth power of 3, that is

(2^3)^{1/2} +(2^4)^{1/2} - (2^2 *3)^{1/2} + (3^4)^{1/2}

In case of two powers, we have to multiply them.

=2^{3/2} + 2^{4/2} -2^{4/2} * 3^{1/2} + 3^{4/2}

Simplifying the exponent, will give

=2*2^{1/2} +4 -4*3^{1/2} +9

Combining like terms,

=13+2*2^{1/2} -4*3^{1/2}

7 0
3 years ago
Read 2 more answers
An electrician charges $15 for a service call plus $25 per hour. The total bill for a recent job was $165.
Aleksandr-060686 [28]

Answer:

h = 6

Step-by-step explanation:

Equation:

15 + 25h = 165

Subtract 15 from both sides

25h = 150

Divide both sides by 25

h = 6

So 6 hours

Hope this helped :)

Please consider Brainliest :)

3 0
3 years ago
Read 2 more answers
The average cost per month of a 2-bedroom apartment in Grayson was $625 last year.This year,the average cost is $650.What is the
Ann [662]

The amount increased 4% from last year.

Step-by-step explanation:

Given,

Average cost last year = $625

Average cost this year = $650

Increase amount = Average cost last year - Average cost this year

Increase amount = 650 - 625 = $25

Percent increase = \frac{Increase\ amount}{Average\ cost\ last\ year}*100

Percent\ increase=\frac{25}{625}*100\\Percent\ increase=\frac{2500}{625}\\Percent\ increase=4\%

The amount increased 4% from last year.

Keywords: percentages, subtraction

Learn more about subtraction at:

  • brainly.com/question/8805387
  • brainly.com/question/8806598

#LearnwithBrainly

8 0
3 years ago
4.
andrey2020 [161]

Answer:

Step-by-step explanation:

o.67891

6 0
1 year ago
The cross section of a parabolic reflector has a vertical axis of symmetry with its vertex at (0,0) . The focus of the reflector
Paha777 [63]

Answer:

The depth of the reflector is 0.84 feet

Step-by-step explanation:

<em>(See the figure below)</em>

The equation of a parabola centered at the origin with an axis of symmetry on y-axis is:

x^{2}=4py (1)

With p the distance from the origin to the focus using p=6, the equation (1) of the parabola becomes:

x^{2}=4(6)y=24y (2)

Note that the point B is on the parabola, so this point should satisfy the parabola equation (2) that allow us to use the value x=4.5 to find the y value associated to it, that it is the depth (h) of the reflector:

(4.5)^{2}=24y, solving for y

y=\frac{(4.5)^{2}}{24}\approx0.84\,ft

4 0
4 years ago
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