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Kipish [7]
3 years ago
8

Which expression is equivalent to 73 ⋅ 7−5? 72 77 1 over 7 to the 2nd power 1 over 7 to the 7th power

Mathematics
2 answers:
Rasek [7]3 years ago
7 0

Answer:

  1/7^2

Step-by-step explanation:

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  a^-b = 1/a^b

__

Then your expression simplifies to ...

  7^3\cdot 7^{-5}=7^{3-5}=7^{-2}=\boxed{\dfrac{1}{7^2}}

soldier1979 [14.2K]3 years ago
6 0

Answer:

The answer is 1/7^2

Step-by-step explanation:

I took the test lol

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Dexter plans and records his spending. In the coordinate plane below, the z-axis represents the number of days
alisha [4.7K]

Answer:

i need a pic of the coordinate plane, in order to help you out...

Step-by-step explanation:

3 0
3 years ago
Combine to create an equivalent expression -n + (-4) - (-4n) +6
Sav [38]

Answer: The answer is 3n + 2

Step-by-step explanation: You will have to combine like terms:

=−n + −4 + 4n + 6

=(−n + 4n) + (−4 + 6)

=3n + 2

3 0
4 years ago
Match them together to correct answer
Verizon [17]

ANSWER

Frequency=2

Midline =3

Amplitude =5

Period =π

EXPLANATION

We have:

f(x) = 5 \cos(x)  + 3

The given function is of the form;

f(x) = a\cos(bx)  + c

where

a=|5| =5 is the amplitude

and b=2 is the frequency.

and 2π/b=2π/2=π

The range of the given function is

8≤y≤-2

The midline is

\frac{8  + - 2}{2}  =  \frac{6}{2}  = 3

6 0
4 years ago
Read 2 more answers
Of the 60 animals on a certain farm, 2/3 are either pigs or cows. How many of the animals are cows? (1) The farm has more than t
mario62 [17]

Answer:

Step-by-step explanation:

\frac{2}{3}of total= either cow or pigs

\frac{2}{3}of 60=

\frac{2}{3} X 60=40

Either pigs or cow = 40

(1) Let number of pigs be x

   then number of cows >twice of pigs = 2x

    number of pigs + number of cows  = 40

                number of cows = 40 -x

                   40-x > 2x

                   40 > 3x

               x < \frac{40}{3}

               x < 12.33

               nearest integral number is 12

               so its 12

              so number of pigs will be 12 so that number of cows = 40 -12 = 28

           which is more than twice of number of pigs

             28 > 2( 12)  = 24

     (2)   number of pigs + number of cows = 40

        for x>12

               number of cows = 40 -x

                  x > 12

                 -x < -12

             adding 40 both sides

            40-x < 40-12

           number of cows <28

7 0
4 years ago
Please help please please
olasank [31]
Hola!

Q. A regular Hexagon has reflection symmetry : True!

Because,
A shape has reflection symmetry only when it has one or more lines of symmetry.

A line of symmetry is a line that passes through a figure such that it splits the figure into two congruent halves.

[ refer the attachment. ]

hope it helps!

6 0
4 years ago
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