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AleksandrR [38]
3 years ago
7

PLEASE HELP ME. ^^photos^^ I need help with this math please!!!!!

Mathematics
1 answer:
EleoNora [17]3 years ago
5 0

Answer:

17. 11x - 11y  or  11x + (-11y)

18. -7.52 - 2.8  or  -7.52 + (-2.8)

19. 41x - 21y - 6

20. -3y -8xy

Step-by-step explanation:

17. Use the distributive property.

18. Use the distributive property to multiply each number inside the parentheses by 0.4

19. Multiply each number inside the parenthese by 7.

20.Multiply each term in parenthese by y.

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5^4/5^7 simplified is
Nuetrik [128]

\textbf{Given that,}\\\\~~~\dfrac{5^4}{5^7}\\\\\\=5^{4-7}~~~~~~~~~~~~~~~~~~~~~~~~;\textbf{Apply exponent rule:}~\dfrac{a^m}{a^n} = a^{m-n}\\\\\\=5^{-3}\\\\\\=\dfrac 1{5^3}~~~~~~~~~~~~~~~~~~~~~~~~~~;\textbf{Apply exponent rule:}~ a^{-n} = \dfrac 1 {a^n},~~~a \neq 0 \\\\\\=\dfrac 1{125}\\\\\\=0.008

5 0
2 years ago
Read 2 more answers
1
natulia [17]

Answer:

78

Step-by-step explanation:

112-18-16=78

3 0
3 years ago
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How to write 0.125 as a fraction in simplest form
hoa [83]

Answer:

0.125 = 125/1000

Step-by-step explanation:

8 0
3 years ago
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Find x in this 45°-45°-90° triangle. x = 4.5√2 9 18
postnew [5]

Answer:

x = 9

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = \frac{1}{\sqrt{2} } , then

sin45° = \frac{opposite}{hypotenuse} = \frac{x}{9\sqrt{2} } = \frac{1}{\sqrt{2} } ( cross- multiply )

x × \sqrt{2} = 9\sqrt{2} ( divide both sides by \sqrt{2} )

x = 9

5 0
3 years ago
26/57 = 849/5x [x = 372.25
Hitman42 [59]
If not the answer that I got is 26/57 = [849 x(x= 372.25)]/5
3 0
4 years ago
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