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irga5000 [103]
3 years ago
5

Which expressions are equivalent to 4^−2 ⋅7 ^-2?

Mathematics
1 answer:
Andrews [41]3 years ago
8 0

Answer:

We can have several equivalents.

It can be 1/784,  28^(-2),  or  1/ (28^2)

Step-by-step explanation:

4^(-2) * 7^(-2) =  (4*7)^(-2) = 28^(-2)

or  1 / (28^2)   is another equivalent.

4^(-2) * 7^(-2) = 28^(-2)

4^(-2) * 7^(-2) = = 1/784

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tickets for the school play cost $ 8 each for adults and $ 3 for students.what was the cost of 2 adult tickets and 1 student tic
olga nikolaevna [1]
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5 0
3 years ago
tinas rectangular living room floor measures 15 feet by 18 feet.how many square feet of carpet will tina need to cover the entir
Thepotemich [5.8K]

Hello from MrBillDoesMath!

Answer:

270 in^2



Discussion:

Area of rectangular floor = length  * width

                                           = 15 * 18

                                           = 270

Thank you,

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7 0
3 years ago
Tony bought 48 roses for $24. How much do 24 roses cost
kondor19780726 [428]
We know that:
48 roses costs $24
24 roses costs ?$
Step 1:
Use cross multiply
24×24=576
Last step:
Use division
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3 0
3 years ago
Which system of equations has the same solution as the system below
QveST [7]

Answer:

None of the above.

Step-by-step explanation:

The system of equations which should have the same solution as the system below;

x + 4y = 11

4x + 2y = 16

is

x + 4y = 11

-8x - 4y = - 32

This system of equations is missing from your choices.

The trick is that -2 is multiplied to the second equation of the first system.

i.e -2 (4x + 2y = 16) gives; -8x - 4y = -32

3 0
3 years ago
Which expression can be used to check the answer to 56 divided (-14) = 4
nalin [4]

Answer:

I think the answer is O 56 × (-14)

8 0
3 years ago
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