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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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dolphi86 [110]

Answer:

1 5/6

Step-by-step explanation:

Do 2/3 x 2/1 because 2/1 = 2 and you get 1 1/3. Make 1 1/3 into 1 2/6 (1/3 = 2/6) and add 3/6 (1/2 = 3/6)

4 0
3 years ago
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The graph of the equation y=12x−3 Determine the value of y for the point (4, y).
Novosadov [1.4K]

Answer:

y=45

Step-by-step explanation:

y=12x-3

y=12(4)-3

y=45

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3 years ago
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If the surface area of the box of cereal is 272 inches squared, find the length of the box.
LekaFEV [45]

Answer:

x= 8 inches

Step-by-step explanation:

you left out the other lengths but since i had this same question once, the other lengths are 12 and 2-

dimensions of the box:

12 in x 2 in x ?

=272 square inches

and we know that there are 6 faces

area=  2 *(12 * 2) + 2 *(2*x) + 2 *(12*x)

area = 272 sq. in.  = 48 + 4x + 24x

272 = 48 + 28x

272 - 48 = 28x

224 = 28x

x = 8 inches

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

5 0
3 years ago
If you know that a &lt; b, and both a and b are positive numbers, then what must be true about the relationship between the oppo
nlexa [21]
What ever number A is, it is going to be less than whatever number B is.
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What is the area of this trapezoid?
sasho [114]

Area of trapezoid : (Base 1 + base 2) x h x 1/2

Let's solve!

( 2+6) x 5 X1/2

= 40x1/2

=20

20 in squared is the area!

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3 years ago
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