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tatyana61 [14]
3 years ago
13

Which rule which allows us to change the sign of an exponent

Mathematics
1 answer:
ruslelena [56]3 years ago
3 0

Answer:

Step-by-step explanation:          

                                                                                       1

Given x³, we can write the equivalent expression -----------

                                                                                    x^(-3)

                                                              1

Given y^(-4) we can rewrite this as  ----------

                                                             y^4

Here we're applying the "rule of negative exponents."

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It is positive and increasing
Oduvanchick [21]
It is positive and increasing
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3 years ago
At the park, there is a triangular sandbox with base = 12ft and height = 4ft. A drawing of the sandbox is shown above. Brie want
sammy [17]

Your question is not clear, but it looks as though you want to know how Brie can make a similar sandbox with base = 8ft.

Answer:

For Brie to make a similar sandbox, he must use a base = 8ft, and height = (8/3)ft

Step-by-step explanation:

It is possible for Brie to make a similar triangular sandbox with base = 12ft and height = 4ft.

All he must ensure is that the ratio of base to height of the original sandbox is the same ratio of base to height of the one he is trying to make.

The original sandbox is 12:4

Because he wants to use a base = 8ft, the sandbox he is trying to make is 8:x

Where x is the height of the sandbox he is trying to make.

Then for these sandboxes to be similar, the ratio 12:4 = 8:x

=> 12/4 = 8/x

12x = 8 × 4

12x = 32

x = 8/3

The height must be (8/3)ft

3 0
3 years ago
Simplify the expression -2b-6+3b-2
netineya [11]
The expression can be simplified as:

b-8
5 0
3 years ago
Draw a quadrilateral that has that least 2 right angels
AlexFokin [52]

Answer:

there are 2 right angles

Step-by-step explanation:

8 0
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A store has caps on display. Five of the caps are red. There are 4 more blue caps than green caps. There are 3 fewer yellow caps
Anton [14]
R=5
B=4+G
Y=G-3
R+B+Y+G=24
(5)+(4+G)+(G-3)+G=24
5+4+G+G-3+G=24
3G+6=24
3G=18
G=6
B=4+(6)
B=10
Y=(6)-3
y=3
answer
R+B+Y+G=24
5+10+3+6=24
8 0
3 years ago
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