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n200080 [17]
3 years ago
11

Thanks in advance for the answer

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
5 0
2^{-2} =  \frac{1}{2^{2}} = \frac{1}{4} 


does this make sense to you? Do you have any questions about raising numbers to a negative value?
sleet_krkn [62]3 years ago
5 0
Any number raised to the negative power, is simply, 1 over that number raised to the opposite of the negative number.

For example, 2 to the power of -2 would end up being:

\frac{1}{ 2^{2} } = 1/4

Same with all the others.

For example, 3 to the power of  -3 would end up being:

\frac{1}{ 3^{3} }

And then you would just solve for the exponent on the bottom.
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How to round o.175 thousands
Sliva [168]
It has a bunch of zeroes after the five so it is rounded unless you want to go to .18
4 0
4 years ago
At a bake sale, as student spent $11.00 buying 3 brownies and 5 cookies. His friend spent $3.95 buying 1 brownie and 2 cookies.
riadik2000 [5.3K]

Answer:

$$2.25

Step-by-step explanation:

Let b = the cost of one brownie, c = cost of one cookie

3b + 5c = 11

b+2c = 3.95

Times 3 on both sides on the second equation above to get the following:

3b + 6c = 11.85

3b+6c - (3b+5c) = 11.85-11

3b+6c-3b-5c = 0.85

c = 0.85

To find the value of b, use substitution:

b+2c = 3.95

b = 3.95-2c

= 3.95 - 2\times0.85

= 2.25

\therefore the cost of a brownie is $$2.25

Hope this helps :)

4 0
3 years ago
Use the Shell Method to find the volume of the solid obtained by rotating region under the graph of f(x)=x^2+2 for 0≤x≤5 about x
Irina18 [472]

For each <em>x</em> in the interval 0 ≤ <em>x</em> ≤ 5, the shell at that point has

• radius = 5 - <em>x</em>, which is the distance from <em>x</em> to <em>x</em> = 5

• height = <em>x</em> ² + 2

• thickness = d<em>x</em>

and hence contributes a volume of 2<em>π</em> (5 - <em>x</em>) (<em>x</em> ² + 2) d<em>x</em>.

Taking infinitely many of these shells and summing their volumes (i.e. integrating) gives the volume of the region:

\displaystyle 2\pi \int_0^5 (5-x)(x^2+2)\,\mathrm dx=2\pi\int_0^5 (10-2x+5x^2-x^3)\,\mathrm dx=\boxed{\frac{925\pi}6}

4 0
3 years ago
How many time larger is 5000 to 5
disa [49]

Answer:

1000 times larger.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
5. A line has a slope of (-3/2) and a y-intercept of (-4). Write the equation of the line.
KATRIN_1 [288]

Answer:

Y=-3/2x-4

Step-by-step explanation:

Point slope form is

y=mx+b

mx is the slope

and b is the y-intercept

6 0
3 years ago
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