anonymous
  • anonymous
I Give Metals. Which of the following is an equivalent representation of 3^-3 ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
|dw:1443453405498:dw| @texaschic101
anonymous
  • anonymous
a 1/27 b. 1/9 c. 1/64 d. 1/16
texaschic101
  • texaschic101
a^-n = 1/a^n 3^-3 = 1/(3^3) or 1/27

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More answers

anonymous
  • anonymous
can you help me with more
texaschic101
  • texaschic101
I can try..but I am not the best with exponents
anonymous
  • anonymous
Which of the following best describes the solution to the equation below? 14x + 15 = 7x + 32
texaschic101
  • texaschic101
little hint....when moving something across the equal sign, you just have to change the sign. 14x + 15 = 7x + 32 --- gonna move the 15 and the 7 across the equal sign, so I have to change their sign... 14x - 7x = 32 - 15 -- now combine terms 7x = 17 -- now divide both sides by 7 x = 17/7
anonymous
  • anonymous
A exactly one real solution,x= 2 3/7 B. no real solutions C. exactly one real solution, x=17 D. infinite real solutions
texaschic101
  • texaschic101
exactly one real solution....17/7 = 2 3/7....so A
anonymous
  • anonymous
okay
anonymous
  • anonymous
x/5 - 8 = 7
anonymous
  • anonymous
A x=90 B. x= -5 C.x=60 D. 75
anonymous
  • anonymous
D x=75 i mean
texaschic101
  • texaschic101
x/5 - 8 = 7....add 8 to both sides x/5 = 15....now multiply both sides by 5 x = 75
anonymous
  • anonymous
Find an expression equivalent to the one shown below. 12^7*12^negative 2
anonymous
  • anonymous
|dw:1443454440252:dw|
anonymous
  • anonymous
a12^9 b12^-14 c5^12 d12^5
anonymous
  • anonymous
Which value of x makes the following equation true? 2(x - 2) = -3x + 31 A.8 B.7 C.10 D.11
texaschic101
  • texaschic101
12^7 * 12^-2 = 12^7 * 1/(12^2) = (12^7) / (12^2) = x^m/x^n = x^(m-n) 12^7/12^2 = 12^(7 - 2) = 12^5...so D
texaschic101
  • texaschic101
2(x - 2) = -3x + 31 2x - 4 = -3x + 31 2x + 3x = 31 + 4 5x = 35 x = 7
anonymous
  • anonymous
Which of the following best describes the solution to the equation below? 10x + 17 = -24 + 10x A.exactly one real solution, X= 1 9/20 b. exactly one real solution, x = -1 1/5 C.infinite real solutions D. no real solutions
texaschic101
  • texaschic101
10x + 17 = -24 + 10x 10x - 10x = -24 - 17 I can tell you right now there is no solutions to this one
anonymous
  • anonymous
Find an expression equivalent to the one shown below. 8^6*(8^8)^-4 A 8^26 B 8^38 C 1/838 D. 1/1826
anonymous
  • anonymous
do you know it
texaschic101
  • texaschic101
no...sorry...kinda stuck on this one
anonymous
  • anonymous
The speed of light is 3 × 10^8 meters per second. What is this speed in standard form? A. 3,000,000,000 meters per second B. 30,000,000 meters per second C. 300,000,000 meters per second D. 300,000 meters per second
texaschic101
  • texaschic101
its gonna be 3 with 8 zeros
anonymous
  • anonymous
since you're multiplying with exponents that have common bases, you should be able to simply add the exponents. 6 + 8 - 4 = 10, but 8^10 isn't there (referring to the one above)
anonymous
  • anonymous
c
anonymous
  • anonymous
i could look up the rules for parenthesis in this situation and get back to you on this if you'd like
anonymous
  • anonymous
The length of an object is measured as 85.9 centimeters. What is this measurement in scientific notation? A. 8,590 × 10^2 centimeters B.8.59 × 10^1 centimeters C.0.859 × 10^2 centimeters d. 859 × 10^1 centimeters
texaschic101
  • texaschic101
yes...the speed of light one is C
anonymous
  • anonymous
ya can you do that @gahoolianowl
texaschic101
  • texaschic101
85.9 = 8.59 x 10^1
anonymous
  • anonymous
Which shows the expression below simplified? (7 × 10^6) × 0.0005 A. 1.2 × 10^-24 B. 3.5 × 10^2 C. 3.5 × 10^3 D. 3.5 × 10^-24
anonymous
  • anonymous
Which shows the expression below in simplified form? (5 × 10^4) × (7 × 10^-2) A. 12 × 10^2 B. 3.5 × 10^1 C. 3.5 × 10^2 D. 3.5 × 10^3
anonymous
  • anonymous
you'd multiply the exponent of 8 by -4. 6 + (8 times -4). 6 + -32. final answer, 8^26
texaschic101
  • texaschic101
7 x .0005 = .0035 .0035 x 10^6 = 3.5 x 10^3
anonymous
  • anonymous
whats the next one
texaschic101
  • texaschic101
not sure
anonymous
  • anonymous
okay
anonymous
  • anonymous
im solving it. give me a moment please
anonymous
  • anonymous
Simplify the following expression. 4^-1 / 4^4 A.1/64 B.1,024 C.1/1,024 D. 64
anonymous
  • anonymous
anyone knows it
anonymous
  • anonymous
is it D
anonymous
  • anonymous
i think it's 3.5 x 10^3, but im not 100% possitive
anonymous
  • anonymous
is it D
anonymous
  • anonymous
okay no more i i need some help i will tag you
anonymous
  • anonymous
yes, it's D, btw
texaschic101
  • texaschic101
4^-1 / 4^4 = 4^(-1 - 4) = 4^-5 = 1/4^5 = 1/1024
anonymous
  • anonymous
thx

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