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8_murik_8 [283]
3 years ago
7

9 to the power of -4 times 9 to the third power

Mathematics
2 answers:
Archy [21]3 years ago
8 0

Answer:

0.11111111111 or 0.11 repeating decimal

zalisa [80]3 years ago
4 0

\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 9^{-4}\cdot 9^3\implies 9^{-4+3}\implies 9^{-1}\implies \cfrac{1}{9}

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9d + 4 = 2d + 53<br> Can someone tell me what d stands for?
lara31 [8.8K]

Answer:

d=7

Step-by-step explanation:

To find d youll have to find it. 9d + 4 = 2d + 53 minus 2d on both sides> 7d+4=53 now minus 4 on both sides> 7d=49 divide 49/7 > d=7

7 0
4 years ago
Please help and solve for x! (: thank you in advance.
Vera_Pavlovna [14]
First look at the given numbers, especially 123 degrees which if you add up the other side it equals 180 degrees so:
180-123= 57 
Ok now you know two sides of the triangle and you know that all the 3 sides add up to 360 degrees so:
57+75= 132
180-132= 48

6 0
4 years ago
How many zeros are in the standard of 10^3 write in standard form .what is the number written in standard form?
Lubov Fominskaja [6]

Answer:

1000

Step-by-step explanation:

10x10=100

100x10=1000

7 0
3 years ago
Irrelevant answers will be reported. DUE TODAY!!!
Rina8888 [55]

Answer:

C. Ferris wheel

Step-by-step explanation:

Circumference = pi x diameter

Take each of the entries from the diameter column and multiply by 3.14. They are all correct except for the Ferris wheel.

70.5 x 3.14 = 221.37

5 0
3 years ago
8^x=2<br> 8 to the power of x = 2. Find the value of x.
a_sh-v [17]

Answer:

\huge{ \bold{  \boxed{ \sf{x =  \frac{1}{3} }}}}

☪ First , Let's know about Exponential Equation :

⤿ Let's take an equation : \sf{ {2}^{x}  = 8}.

In this equation , the variable ' x ' is the exponent of the base 2. Such an equation in which variable appears as an exponent of a base is known as exponential equation. The following axioms are useful while solving the exponential equations :

  • If \sf{ {a}^{x}  =  {a}^{b} } , then \sf{x = b}
  • If \sf{ {a}^{x}  = 1} , then \sf{ {a}^{x}  =  {a}^{0} } and x = 0

---------------------------------------------------------------

☯ Now , Let's Solve :

\underline{ \sf{Given \: Exponential \: Equation \: :  {8}^{x}  = 2}}

In this equation , the variable 'x' is the exponent of the base 8 .Write \sf{ {8}^{x} } in exponential form with the base of 2

↦ \sf{ {2}^{3x} = 2}

Write the number 2 in exponential form with the base of 2.

↦ \sf{ {2}^{3x}  =  {2}^{1}}

Since the bases are same , cut 2 on both sides and set the exponents equal.

↦ \sf{ { \cancel{2}} \: ^{3x}  =  { \cancel{2} } \: ^{1} }

↦ \sf{3x = 1}

Divide both sides by 3

↦ \sf{ \frac{3x}{3}  =  \frac{1}{3}}

↦ \boxed{   \bold{ \sf{x =  \frac{1}{3} }}}

And we're done!

Hope I helped!

Have a wonderful day! ツ

~TheAnimeGirl ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

5 0
3 years ago
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