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Murljashka [212]
2 years ago
11

Simplify the expression. 2a^–4 m^5

Mathematics
1 answer:
Novay_Z [31]2 years ago
8 0
We have  that
2a^{-4} m^{5}

Remove the negative exponent<span> by rewriting
</span>a^{-4}   as    1/a^{4}
2(1/a^{4})m^{5}

Simplify  2 (1/ a^{4} )

Write 2 as a fraction with denominator 1<span>.
</span>(2/1)(1/a^{4} ) m^{5}

Multiply  (2/1)   and  (1/ a^{4} )  to get  2/ a^{4}
(2 /a^{4}) m^{5}

Write <span><span>m5</span></span><span> as a </span>fraction<span> with </span>denominator <span>1
</span>(2/ a^{4})( m^{5} /1)

<span>Multiply  
(2/ a^{4})  and ( m^{5}/1)   to get  2 m^{5} / a^{4}
<span>
the answer is
</span>2 m^{5} / a^{4}<span>
</span></span>
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Danny brought a car for £10000 the value of the car depreciated by 20% in the first year then the value of the car depreciated b
Levart [38]

£7200

In first year depreciates by 20%, that is it is worth 80% of it's original value

80% = \frac{80}{100} = 0.8

value after 1 year = 0.8 × £10000 = £8000

In the second year it depreciates by 10% of it's value, that is it is worth 90% of it's value at the end of the first year.

90% = \frac{90}{100} = 0.9

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6 0
3 years ago
I need help with this ASAP plzzzzz
miss Akunina [59]

Answer:

23. \frac{4\sqrt{3} }{3}

24. \frac{7\sqrt{3}}{3}

25. 6\sqrt{3}

26. \frac{10\sqrt{3} }{3}

27.  14

28. 4\sqrt{3}

Step-by-step explanation:

To solve these i used SOHCAHTOA

sin=\frac{opposite}{adjacent}\\ cos=\frac{adjacent}{hypotenuse} \\tan=\frac{opposite}{adjacent}

23.

Find the missing side using Tangent

tan(30)=\frac{x}{4}

4*tan(30)=x

\frac{4\sqrt{3} }{3}

24.

Find the missing side using Tangent

tan(30)=\frac{x}{7}

7*tan(30)=x

\frac{7\sqrt{3}}{3}

25.

Find the missing side using Tangent

tan(30)=\frac{x}{18}

18*tan(30)=x

6\sqrt{3}

26.

Find the missing side using Tangent

tan(30)=\frac{x}{10}

10*tan(30)=x

\frac{10\sqrt{3} }{3}

27.

Find the missing side using Tangent

tan(30)=\frac{x}{14\sqrt{3} }

(14\sqrt{3}) *tan(30)=x

14

28.

Find the missing side using Tangent

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4\sqrt{3}

5 0
3 years ago
Factorise fully 6x^2+9xy
Free_Kalibri [48]
3x(2x+3y)
1. find a common multiple of either sides of the + sign...
3x
2. put it outside the brackets...
3x(    )
3. find what you have to multiply the rest equation by to get the number...
2x x 3x = 6x squared
3y x 3x = 9xy
4. put it in the brackets...
3x(2x+3y)
Hope this helps :)
4 0
3 years ago
At 7:00 a.m., the temperature was 12° below zero Fahrenheit. Then the temperature rose 3° per hour for 9 hours. What was the tem
Blababa [14]

Answer:

it would be 9 degrees Fahrenheit

Step-by-step explanation:

i hope it helped

i took 3 times nine then i took the answer: 21 minus 12 and that equals nine

6 0
3 years ago
A company buys a new bulldozer for $116050. The company depreciates the bulldozer linearly over its useful life of 20
alex41 [277]

Answer:

A.   V = 116050 - 5300t

B.  $73,650.

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20k = 116050  - 10050 = 106000.

k =  106000 / 20

k = 5300

So the answer to A is:

V = 116050 - 5300t   where t = number of years old the bulldozer is.

B. Value after 8 years

= 116050 - 5300*8

= 73,650 dollars.

5 0
2 years ago
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