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sergij07 [2.7K]
3 years ago
11

Which expressions is equivalent to

5E%7B3%7D%20" id="TexFormula1" title="7 {}^{ - 4} \times 7 {}^{3} " alt="7 {}^{ - 4} \times 7 {}^{3} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
beks73 [17]3 years ago
6 0

Answer:

7⁻⁴×7³ = \frac{7^{3} }{7^{4} } = \frac{1}{7}

:)

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A pen costs p cents. Write down a formula for the cost, C cents, for n pens.​
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Step-by-step explanation:

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Step-by-step explanation:

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Can someone help me with this. Will mark brainliest. Thank you.
Murljashka [212]

Answers:

  1. circle
  2. center
  3. radius
  4. chord
  5. diameter
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=======================================

Explanations:

  1. Consider a campfire and people surrounding it to warm up. The fire itself is the center of the circle, and the people around it are points on the circle's edge. Assume that each person is the same distance away from the fire. Refer to the diagram below.
  2. We always refer to the circle name by the center point. Think of it being like at the center of the universe, or you could think how the sun is at the center of the solar system. While technically the planets orbit in ellipses and not perfect circles, this idea still could be useful to help remember the naming convention.
  3. If we go back to the example in part 1, the radius is the distance from the campfire to any given person. The radius is half the diameter.
  4. This is not to be confused with the spelling "cord" which refers to wiring used in electronics, or in fabric fibers. If we connected any two campers with a segment, then we formed a chord. Refer back to part 1 above. Any diameter is a chord, but not the other way around.
  5. The diameter is a special type of chord that goes through the center. Note the endpoints of the diameter are on the circle's edge.
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3 0
3 years ago
I need help with these 2
Slav-nsk [51]

Answer:

Step-by-step explanation: Hey for the second one I got y = -3/4x -0.5 I'm not sure if its correct though sorry if not
ill try my best to explain my solution though
1. From the parallel equation (3x + 4y = 12) all we need to do is find the slope

So the easiest way to do so is to put the said equation in <u>y-intercept </u>form

y=mx +b
m= slope

b= y intercept

so 1. 3x + 4y = 12

=

4y = 12-3x

divide that by 4 to get only y

y=3-3/4x

-3/4 is our slope

y=-3/4x+b

than we have a point -2, -2

if we put -2 for y

-2=-3/4x+b

and then we put our -2 for x
-2 = -3/4 * -2 + b

=

-2  = -1.5 +b
b=-0.5

Answer : y=-3/4x-0.5

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Answer:

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U right it’s not any of them and if u single I’m here

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