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Zanzabum
3 years ago
13

Rewrite the following expression as a number with no exponents. Explain or show your reasoning

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
3 0

Answer:

1/5,764,801

Step-by-step explanation:

We have this as follows

All we have to do is use the laws of indices

We have it that;

a^-x = 1/a^x

a^x/a^y = a^(x-y)

Applying these laws;

7^-3/7^5

= 7^-3-5

= 7^-8

= 1/7^8

= 1/5,764,801

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Simplify the ratio 15:13
tino4ka555 [31]

15:13 is in its simplest form already, since 13 is a prime number and 15 is not a multiple of 13.

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4 years ago
A triangle has sides with lengths of 10 millimeters, 25 millimeters, and 28 millimeters, is it a right triangle
Andrew [12]

Answer:

No, it is not a right triangle.

Step-by-step explanation:

Let's take it as,

→ Hypotenuse = 28 mm

→ Perpendicular = 25 mm

→ Base = 10 mm

Now use Pythagoras theorem,

→ Hypotenuse² = Perpendicular² + Base²

→ 28² = 25² + 10²

→ 784 = 625 + 100

→ 784 ≠ 725

→ [ LHS ≠ RHS ]

Hence, it does not forms a right triangle.

4 0
2 years ago
Evaluate the expression when a=6 and b = 50.<br> b-4a
denis23 [38]

Answer:

26

Step-by-step explanation:

sub it it

50-(4×6)

50-24

3 0
3 years ago
Read 2 more answers
What is the lest common Denominator for the fraction 1/7 and 2/3
djyliett [7]

Answer:

21

Step-by-step explanation:

7×3=21

You can also list out the multiples of 7 and 3, but its easier to just multiply

4 0
3 years ago
PLEASE HELP!!
otez555 [7]

Answer:

3x-y=6?

Step-by-step explanation:

4 0
3 years ago
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