1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ki77a [65]
3 years ago
8

I need help please?!!!

Mathematics
2 answers:
poizon [28]3 years ago
8 0

Step-by-step explanation:

\bigg( \frac{ {7}^{ - 3} }{10}  \bigg)^{ - 2}  \\  \\  =  \bigg( \frac{ 10}{{7}^{ - 3} }  \bigg)^{ 2}  \\  \\  =  \bigg( { 10 \times{7}^{  3}  } \bigg)^{ 2}  \\  \\  =  \bigg( { 10^{ 2}  \times{7}^{  3 \times 2}  } \bigg)  \\  \\  = {7}^{  6}   \times 10^{ 2}

Vadim26 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

(\frac{7^{-3}}{10})^{-2}=\frac{7^({-3*-2})}{10^{-2}}\\\\=\frac{7^{6}}{10^{-2}}\\\\=7^{6}*10^{2}

(a^{m})^{n}=a^{m*n}\\\\\frac{1}{a^{-m}}=a^{m}

You might be interested in
In the figure above abc is a square .. what is the value of x?
Len [333]

If ABCD is a square, then m∠A = 90°.

Therefore we have the equation:

30° + 48° + x° = 90°

78° + x° = 90° |-78°

x° = 12°

Answer: 12

4 0
3 years ago
Systems of Equations via Elimination
Natalka [10]

Answer:

Step-by-step explanation:

The shop sold 70 ice cream cones. It means that x + y = 70Small cones cost 3.95 and large cones cost 5.75. The total sales made from the selling 70 ice creams is $370.10. It means that 3.95x + 5.75y = 370.1 - - - - - - - - - -1Substituting x = 70 - y into equation 1, it becomes3.95(70 - y) + 5.75y = 370.1276.5 - 3.95y + 5.75y = 370.1- 3.95y + 5.75y = 370.1 - 276.51.8y = 93.6y = 93.6/1.8y = 52x = 70 - 52x = 18. Ww

Read more on Brainly.com - brainly.com/question/14570469#readmore

5 0
3 years ago
Light travels at the speed of approximately 3.0 × 108 meters per second. Find the time in minutes required for light to travel f
expeople1 [14]
Speed = distance / time => time = distance / speed
speed = 3x10^8 x 60 = 180x10^8 m per minute
time = 1.5x10^11/180x10^8 = 150x10^9/180x10^8 = 5/6x10 = 8,3 minutes
6 0
3 years ago
50% of 200: fifty percent of two-hundred is?
Serggg [28]

Answer:

100

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PLZZZZZZZZZZ HELPPPPPPPPPPPPPP!!!!!
Julli [10]

Answer:

= 7

Step-by-step explanation:

get it right! hope you get it right!\

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation is the inverse of y=9x^2-4
    10·2 answers
  • write an equation of a line with the given slope and y-intercept. m = 1, b = 4 a. y = –1x 4 b. y = x – 4 c. y = 4x 1 d. y = x 4
    15·1 answer
  • Which type of validity applies to research results based on subjective qualities?
    13·2 answers
  • You buy a shirt that is on sale for 30% off. You pay $22.40. Your friend wants to know the original price of the shirt. Whats th
    7·2 answers
  • What is the definition of rate?
    7·1 answer
  • Help me out again Please thanks
    13·2 answers
  • Determine which function has a greater change of rate.<br> Be sure to show work as well.
    13·1 answer
  • a rectangle garden has a length of (y+2) and a with of (4y-1) yards. find the perimeter of the garden on terms of y.​
    5·1 answer
  • Find the height of a right cylinder with surface area 160pie square units and radius 5 units
    11·1 answer
  • Need help with <br> 46.<br> 47.<br> 48.<br> 49.<br><br> Fast pls I need it done now please!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!